EP1412924A2 - Tachograph comprising a flat, cuboid housing and a registration device provided for the use of tachograph chart bundles - Google Patents

Abstract

The invention relates to a tachograph which comprises a flat, cuboid housing and a registration device provided for the use of tachograph chart bundles, in which, during the course of registration transport of a tachograph chart bundle. the individual tachograph charts that are fastened on a base disk by means of connecting strips and that have a cut-out section provided for the passage of a separating knife and the registration elements from one tachograph chart to the tachograph chart next in the tachograph chart bundle, are gradually severed from the tachograph chart bundle by the stationary separating knife and are stacked on a stop, one edge each of the section of a tachograph chart interacting with the stop. The stop edge of a tachograph chart transported towards the stop is prevented from abutting on the tachograph chart-side end of the severed connecting strip of a tachograph chart that is already stacked on the stop. The invention is characterized by a ramp spacer (55) by means of which the tachograph charts (23, 24, etc.) severed from the tachograph chart bundle (17) and resting on the stop (40) are lifted off from the respective registration level in a defined manner within at least one angular section corresponding to the cut-out section of a tachograph chart. The invention is further characterized in that the spacer (55) is positioned relative to the stop (40) in such a manner that a tachograph chart (24) transported against the stop (40) at the end of a registration cycle is lifted off in such a manner that the stop edge (29a) of the tachograph chart (24) substantially contacts the tachograph chart (23) resting on the stop (40) substantially between the connecting strip (25) and the stop edge (29).

Description

description

Tachograph with a flat, cuboid housing and a registration device intended for the use of diagram disk bundles

The invention relates to a tachograph with a flat, parallelepiped-shaped housing and with a registration device provided for the use of diagram disk bundles, in which the individual diagram disks, which are each fastened by means of connecting strips to a base disk and for the passage of a separating knife and the registration organs have a sector-shaped cutout from a chart on the next chart in the chart bundle, are gradually separated from the fixed separating knife from the chart bundle and stacked at a stop, one edge of the section of a chart cooperating with the stop and in which one The stop edge of a diagram disk transported against the stop abuts against the end of the severed connecting strip on the diagram disk side s Diagram disc on the stop is avoided.

As is known, bundles of diagram disks are advantageously used when a process of interest in their context is to be recorded over a longer period of time or if a better resolution of the registrations is to be achieved within a certain temporal registration area than would be possible with a single diagram disk with a relatively narrow registration capacity. Otherwise, the operation of a tachograph is by inserting of diagram slice bundles, which, for example, allow weekly registration, is considerably simplified.

The uninterrupted registration aimed for with a diagram disk bundle in which the diagram disks are arranged in a staggered manner over a longer period of time is achieved in that the registering elements of the tachograph slide down from a diagram disk to the next diagram chart in the diagram disk bundle after almost one revolution as a result of the sector-shaped sections. The further registration is thus carried out without a time offset on a new, as yet unrecorded diagram disc, while the described diagram disc, which is connected by the connecting strip, for example a paper strip, to the last diagram disc or a base disc in the registration process, during the further movement of the diagram disc bundle by means of a cutting knife , which also falls into the section of the described chart and then acts between the described and the next following chart, is separated from the bundle of charts. In the further course, the friction of the separated diagram disc with the remaining and further rotating remaining bundle or with its liner firmly connected to the base disc guides the separated diagram disc against a stationary stop.

In the case of a tachograph with a cuboid, flat housing, that is to say which has the smallest dimension in the direction of the vertical axis, the diagram disks or the diagram disk bundle, when they are in the registration position, are arranged essentially horizontally, with the movement of a diagram disk bundle from a removal / Insertion position into the registration position and vice versa by means of a drawer guided in the housing.

As a result of this device concept with a horizontal position of the diagram disk bundle and the separated diagram disks, in particular as a result of the fact that the separated diagram disks lie above the rotating remaining bundle, there is a risk that the upper diagram disk of the remaining bundle with the stop edge of its cutout at the end of the diagram disk The connecting strip of a diagram disk that has already been cut off and abuts against the stop abuts, especially since the edge region of the cutout, on which the stop edge is located, is formed to be bent, in order to ensure a trouble-free sliding of a described and thus detachable diagram disk onto the cutting knife. Such a bumping leads to a time delay of the registrations, ¹ if the diagram disc bundle is subsequently transported further due to the then increasing transport moment, but can also tear off the diagram disc bundle if the diagram disc gets stuck on the connecting strip, which may not be glued over the entire surface or detached at the edges of the driving means driven by the registration drive and thus interrupt the registration transport of the diagram disk bundle.

The risk of bumping and ultimately sticking of the diagram disc located in the remainder of the bundle at the end of the connecting strip of this diagram disc adhering to the previously separated diagram disc is considerably increased in particular if a hold-down acting on the separated diagram discs in the area of the stop is used. Holding down the chart disc dels, in particular, however, the described and separated diagram disks, is useful in the generic device concept because, due to the low overall height of the device, the registration organs can be hindered or put out of function if the diagram disk bundles bulge due to moisture absorption or if the diagram disks after cutting through Bend the connecting strips in any case unstable areas of the diagram disks adjacent to the cutouts.

The object of the present invention was therefore to improve the suitability of a tachograph equipped with a drawer for the use of diagram disk bundles as record carriers, in particular to ensure the functional reliability with regard to avoiding a collision of the remaining bundle with a diagram disk separated from the diagram disk bundle, and with means suitable for series production.

The solution to the problem provides that a spacer provided with a ramp is provided, by means of which the diagram disks separated from the diagram disk bundle and lying against the stop are lifted off the registration level within a certain angular range and that the spacer is in relation to the stop is positioned in such a way that a diagram disk transported against the stop at the end of a registration cycle is raised in such a way that the stop edge of the diagram disk essentially comes into contact with this diagram disk between the connecting strip and the stop edge of a diagram disk abutting the stop. Advantageous embodiments of the invention describe the subclaims which are subordinate to claim 1.

The solution found enables, despite the use of a hold-down device, a collision of the stop edge of the overhead diagram disc of the rest of the bundle with the side of the connecting strip of this diagram disc sticking to a detached and abutting diagram disc that faces against the transport direction of the rest of the bundle is avoided with sufficient certainty. The position of the spacer in relation to the stop assigned to the separated diagram disks, the stroke specified by the spacer and the shape and surface quality of the spacer are selected in such a way that it is ensured that the registrations on the diagram disk still connected to the remaining bundle are offset in time through the impact of this diagram disc on the ramp or due to the braking torque resulting from the friction on the spacer and the connecting strip loaded by pulling the diagram disc not pulling off prematurely or being compressed but rather being cut through correctly by the separating knife and thus timely transport of the The chart is guaranteed until the registration elements slide onto the next chart in the bundle of charts. The embodiment in which the spacer is dome-shaped or mushroom-shaped and is attached directly to the separating knife is particularly advantageous in this regard. The attachment or formation on the cutting knife is preferably carried out by injection molding; it is also conceivable in the course of the manufacture of the separating knife to mount an individual part serving as a spacer on the separating knife without any appreciable additional outlay. It is also conceivable that the Before the hardening of the cutting knife, the spacer is stamped out of the cutting knife blank. On the other hand, an arrangement or design of the spacer that is independent of the separating knife is possible, for example on the holder of the separating knife or on the registration document assigned to the diagram disk bundles. In this case, training with a resilient holder is also expedient, if appropriate with a certain adjustability of the spacer.

The invention will be explained in more detail below using an exemplary embodiment.

Show it:

FIG. 1: an orientation front view of a generic tachograph,

FIG. 2 shows a plan view of the tachograph drawer in the removal / insertion position according to FIG. 1, in which a registration device provided for the use of diagram disk bundles is arranged,

FIG. 3: a top view of a diagram disk bundle with a representation of the staggered arrangement of the individual diagram disks within the diagram disk bundle,

FIG. 4: a largely schematically represented functional position, in which the stop edge of the upper diagram disc of the rest of the bundle is located directly in front of a plane, which before it is determined by the side of a connecting strip facing the direction of transport of a diagram disc that has already been cut off and lies against the stop,

FIG. 5: a functional position in which the registration elements have slipped from the described diagram disc, which is still connected to the remaining bundle, to the diagram disc that follows and is circumscribed in the remaining bundle,

6 shows a section along the section line A in FIG. 4.

The tachograph 1 shown in FIGS. 1 and 2 is designed as a built-in device, the dimension of the vertical axis of the cuboid housing 2 (FIG. 2), which is decisive with regard to space problems, being approximately 50 mm. A window section 4 for a display 5 assigned to the front wall 3 is formed in the front wall 3. 6 shows the front panel of a drawer 7 guided in the housing 2. Of the buttons 8, 9, 10, 11, 12 and 13 stored in the front wall 3, the buttons 8 and 9 and the button 10 referred to as the menu button are the driver or the driver Passenger assigned to select at least the most important working time data. The keys 11 and 12 are used to page forward and backward in the respectively selected data records, the key 13 is provided for unlocking and releasing the drawer 7. Access to a diagnostic socket is secured by means of a seal labeled 14.

With 15 and 16 7 provided openings are designated in the drawer, which the removal of an inserted diagram disc bundle 17 (Figure 3) facilitate. 18 represents the bottom of the drawer 7. A drive integrated in the bottom 18 serves to drive a receptacle 19 at the correct time, on which a bundle of diagram disks 17 inserted into the drawer 7 is clamped. A ring-shaped corrugated spring which is attached to the receptacle 19 and is not visible in FIG. 2 serves as an anti-twist device. A centering pin which forms part of the receptacle 19 is provided for aligning the diagram disk bundle 17 to be accommodated, the outer diameter of the centering pin corresponding to the inner diameter of a liner 20 of the diagram disk bundle 17. The diagram disk bundle 17 is clamped on the receptacle 19 by a tensioning element 22 rotatably mounted on a flap 21 pivotally mounted in the drawer 7 acting on the bushing 20 of the diagram disk bundle 17 in question under the force of the wave spring and being axially locked with the centering pin ,

As is known, the liner 20, on which the individual diagram disks of the diagram disk bundle 17 are mounted via their center opening, is fastened in a suitable manner to a base disk of the diagram disk bundle 17 in question. Moreover, each graph chart of the graph chart bundle 17 is as in Figure 3, - the overhead is denoted by ^'23, the next-following 24 - through a connection strip 25, preferably a strip of paper connected to a base disc. Each diagram disc is also provided with a sector-shaped cutout 26, one edge region 27 of which is formed so as to be bent, and thus it is ensured that a cutting knife 28 (FIG. 2) provided for cutting through the connecting strips 25 (FIG. 2) falls into the cutout 26 after each Diagram disc 23 above engages. With 29 an edge of the sector-shaped section 26 is designated, which, when the diagram disk 23 is separated from the diagram disk bundle 17, serves as a stop edge. For a correct insertion of the diagram disk bundle 17 and the correct allocation of the registrations on the diagram disks, they are provided with a time scale 30 at the edge, which is repeated in a central area, for example in the zero line area 31 of the speed registration field 32.

It can be seen from FIG. 2 that the separating knife 28 is fastened to a holder 33 and the latter is connected to a plate-shaped support 34, which in turn is arranged in a suitable manner on the bottom 18 of the drawer 7. 35 represents a marking line provided with a clock symbol 36, which serves to insert a diagram disk bundle 17 at the correct time. A structure 37 covers a light barrier which acts as an insertion control. Further covers 38 and 39 serve as dust protection and protection against tampering with respect to the components of the drive 19 driving the receptacle 19 which are distributed flat in the drawer 7. 40 denotes a stop formed on the holder 33, which serves to prevent the diagram disks separated from the diagram disk bundle 17 from continuing to circulate by friction-related entrainment.

FIG. 2 shows a state in which the flap 21 is in the closed or tensioned position without a diagram disk bundle 17 being inserted in the drawer 7. The flap 21 is supported by means of two bores, not designated in any more detail, formed on bearing arms 41 and 42, to which axes 43 and 44 are assigned. Furthermore, the relatively stiff flap 21 has a finger-shaped gripping element 45 projecting from the front surface of the flap 21, a gripping element 45 projecting from the front surface of the flap 21, a sector-shaped cutout 46 serving for gripping through the registration elements of the tachograph 1 and an inserted diagram disc bundle 17 Attaching a nameplate of the tachograph 1 provided recess 47. The tensioning element 22, on the actuating side of which a handle bar 48 and a sleeve-shaped reed projection are formed, interacts with its actuation with the centering mandrel formed on the receptacle 19 in the sense of tightening or loosening the bushing 20 of a diagram disk bundle 17.

The flap 21, as can also be seen from FIG. 2, is assigned a relatively thin elastic plate 49 which, in a suitable manner, i. H. is connected to the flap 21 by means of plug-in or joint connections, which are generally designated with 50 and 51. A tongue 52 formed on the plate 49 serves, in particular with respect to the graph disks described and separated from a bundle of graph disks 17, as hold-down devices, the holder 33 or its surface 53 serving as the tongue 52 as a support. 54 denotes the surface of a registration pad formed on the platform 34 in the manner of a platform. 55 denotes a spacer provided in accordance with the innovation and assigned to the separating knife 28.

FIG. 4 shows the functional position in the chronological registration sequence of a diagram disk bundle 17, in which there is the remaining bundle 17a between a diagram disk 23 which is separated from the diagram disk bundle 17 and is in contact with the stop 40 and the next one in the remaining bundle 17a A diagram disc 24 still connected by means of the connecting strip 25a can come to a collision, the stop edge 29a of the diagram disc 24, in particular also due to the bent edge region 27a, bumping against the part of the connecting strip 25 adhering to the diagram disc 23 or if the connecting strip does not cover the entire surface is stuck or has partially come off, can get caught. It can also be seen from FIG. 4 that, in the functional position shown, the cutting knife 28 is immersed between the diagram disks 24 and 57 via the cutout 26a of the diagram disk 24 and thus contributes to a certain increase in the diagram disk 24. The risk of getting caught is also greater the more diagram disks are separated from the remaining bundle 17a. It is also particularly large if bent graph disks are retained by the tongue 52 in the direction of the remaining bundle 17a due to moisture absorption. In any case, in the functional position shown in FIG. 4, it is imperative that the diagram disk 24 is still transported without any problems, that is to say without a time delay in the registrations, until the registration members move over the edge 56a of the section 2βa onto the the chart disk 57 of the residual bundle 17a following the chart disk 24 can slide off. That is, the edges 56, 56a of the cutouts 26, 26a fall as well. can be seen from Figure 3, together with the 24 o'clock scale marks of the respective diagram disks 23, 24, etc.

For the sake of completeness, it should be mentioned that the registration elements of the tachograph 1 - at least one for the recording of the speeds and one for the recording of distances and times - are at right angles to the registration surface by a dash-dotted line 58 move marked level, that is, are arranged in a suitable manner in the housing 2 of the tachograph 1 slidably mounted carriage. A registration element, namely the registration element provided for the speed recordings, is designated 59 and is shown in cross-section in FIGS. 4 and 5 in relation to the speed registration field 32 of the diagram disks 23, 24, etc. in a position above the zero line region 31. As is known, a socket 61 is attached to the shaft 60 of the registration member 59 and is used to hold a sapphire tip.

According to the section A in FIG. 4, as can be seen from FIG. 6, the spacer 55 provides sufficient support in the described critical situation for the diagram disk 23 resting against the stop 40 and thus one end with respect to the one sticking to the diagram disk 23 of the severed connecting strip 25 without passing through the bent edge region 27a of the diagram disk 24. Thereafter, ie when the remaining bundle 17a is transported, the diagram disk 24 is also lifted by the spacer 55a and pushed under the diagram disk 23. The position of the spacer 55 on the cutting knife is preferably selected such that the registration elements 59 have slid onto the diagram disk 24 before a higher torque requirement for the transport of the remaining bundle 17a by lifting and pushing it in. the chart 24 arises. This situation is present in the functional position according to FIG. 5, ie the diagram disc 24 is largely raised, the registration members 59 are already registering on the diagram disc 57 next in the remaining bundle 17a, and the connecting strip 25a of the diagram disc 24 comes with the cutting knife edge 28 in touch. Until the connector is completely cut The strip 25 a is moved by the registration drive and, after severing the connecting strip 25 a, is dragged along with the rest of the bundle until the stop edge 29 a strikes the stop 40. In this context, it is advantageous if the diagram disk 24 is pushed onto the spacer 55 before the connecting strip 25a is cut through. The symbol 62 designates the level at which the tongue 52 formed on the plate 49 and acting as a hold-down is located when it is supported on the surface 53 of the holder 33 when a bundle of diagram disks 17 is clamped on the receptacle 19. In the selected exemplary embodiment, the spacer 55 is designed as a plastic part and is fastened to the separating knife 28, for example by ultrasonic welding or hot upsetting. It is also obvious to produce the spacer 55 from brass, for example, and to rivet it with the separating knife 28. The design of the spacer 55 as a mushroom-shaped component is advantageous in that it is easy to assemble and forms a ramp with decreasing torque requirement with regard to the lifting of the diagram disks.

Claims

claims 1.Tachograph with a flat, cuboid-shaped housing and with a registration device provided for the use of diagram disk bundles, in which the individual diagram disks, which are each attached to a base disk by means of connecting strips, and for the passage of a separating knife and the registration organs during the transport of a diagram disk bundle have a sector-shaped cutout from a chart on the chart next in the chart bundle, are gradually separated from the chart by the stationary separating knife from the chart bundle and stacked at a stop, one edge of the section of a chart cooperating with the stop and in which an abutting the The stop edge of a diagram disk transported against the stop is already at the stop at the end of the severed connecting strip on the diagram disk side The diagram chart is avoided, characterized in that a spacer (55) provided with a ramp is provided, by means of which the chart charts (23, 24, etc.) separated from the chart chart bundle (17) and abutting the stop (40) are provided within a at least the angular range corresponding to the sector-shaped section of a diagram disk is raised in a defined manner from the respective registration plane and that the spacer (55) is positioned with respect to the stop (40) in such a way that a diagram disk (24) transported against the stop (40) at the end of a registration cycle ) is raised in such a way that the stop edge (29a) of the diagram disc (24) • essentially comes into contact with this diagram disc (23) between the connecting strip (25) and the stop edge (29) of a diagram disc (23) resting against the stop (40). 2. Tachograph according to claim 1, characterized in that the spacer (55) is formed directly on the separating knife (28). 3. Tachograph according to claim 1, characterized in that the spacer (55) on the holder (33) of the cutting knife (28) is integrally formed. 4. Tachograph according to claim 1, characterized in that the spacer (55) on the support (34) is preferably fixed adjustable. 5. Tachograph according to claim 1, characterized in that the spacer (55) is dome-shaped and is preferably attached to the separating knife (28) by injection molding. 6. Tachograph according to claim 1, characterized in that the spacer (55) is designed as a mushroom-shaped component which can be fastened on the separating knife.