EP2679465A1 - Points adjustment device, in particular clamp lock, with a fixed clamp lock that pivots around a clamp bearing - Google Patents

Abstract

The points adjustment device has a fixed clamp lock (10) that pivots around a clamp bearing (6'), where the clamp bearing is made of a steel profile with a rectangular cross-section or of an inclined steel sheet. The steel profile is a standardized rectangular tube, which is milled into the desired shape or is formed of metal technic. The steel profile is a steel sheet, which is cut prior to bending to the desired shape and is welded after bending.

Description

The present invention relates to a switch adjustment device, in particular a latch lock, with a closure pawl pivotally mounted on a lock bearing.

For the conversion of switches a variety of different adjustment is known. Often, staple point or latch locks are used. The latter pawl closure is from the European patent application EP 0 624 508 A1 known. In all these switch closures arises at the Reibkontaktflächen the movable and the stationary components that bring about the adjustment of a switch or moved in the adjustment, after a longer period of operation depending on the number of completed Umstellzyklen the switch wear between the Reibpartnern. A special feature here is in the latch locks, in which the lock carrier is made of an aluminum bronze and usually consisting of unalloyed mild steel slide or cam bar with the aluminum bronze forms a friction pair. In this pair of friction, the good sliding and emergency running properties of aluminum bronze are strongly desired, but in part, but still creates a relatively high wear. With advanced wear this can even hinder the switch blade migration. In addition to the movement of the slide rod in a direction perpendicular to the track body also takes place a temperature-induced tongue migration in the direction of the track. If the cam rod is already heavily worked into the carrier by the translational movement perpendicular to the track, the latch can become jammed due to the tongue movement.

The pawl of the latch is pivotally held on a lock bearing, which is attached to the switch blade. For various rail and switch blade profiles, therefore, it requires a variety of different lock bearings. The lock bearings are comparatively complex components, since they are usually designed as cast or forged parts. It is easy to understand that this production route is relatively expensive, because models and dies must be created and the blanks must be subjected to a complex material testing by X-ray.

The present invention is therefore an object of the invention to provide a switch adjustment, in particular a latch, specify, in which the lock stock could be made in a relatively simple, yet long-term stable manner.

This object is achieved according to the invention by a switch adjustment device, in particular latch closure, with a closure pawl pivotably attached to a closure bearing, in which the closure bearing is made of a steel profile with a rectangular cross-section or bent from a sheet steel.

In this way, a much simpler presentation of the lock bearing results, because the steel profiles are usually already subjected to the production of an automated test (eg crack test in the manufacturing process), whereby the subsequent inspection effort is significantly simplified. In addition, eliminates the design of various models and dies, because the various embodiments of the closure bearing can be tailored accordingly (eg laser or water jet) or machined (CNC machine).

In an advantageous embodiment of the present invention, it may be provided that the steel profile is a standardized rectangular tube, which is milled into the desired shape or otherwise shaped like metal.

Alternatively, it can also be provided that the steel profile is a steel sheet, which is cut to the desired shape before bending and is welded after bending.

Further advantageous embodiments are embodied in the remaining subclaims.

Figur 1

in schematischer Darstellung eine seitliche Ansicht eines Klinkenverschlusses mit Verschlussträger und Verschlusslager;

Figur 2

in schematischer Darstellung eine perspektivische Ansicht eines ersten Verschlusslagers;

Figur 3

in schematischer Darstellung eine perspektivische Ansicht eines zweiten Verschlusslagers;

Figur 4

in schematischer Darstellung eine seitliche Ansicht eines an Schienenfuss und Weichenzunge montierten Klinkenverschlusses gemäss Figur 1;

Figur 5

in schematischer Darstellung eine seitliche Ansicht des ersten Verschlusslagers gemäss Figur 2; und

Figur 6

in schematischer Darstellung eine seitliche Ansicht des zweiten Verschlusslagers gemäss Figur 3.

Advantageous embodiments of the present invention will be explained in more detail with reference to a drawing. Showing:

FIG. 1

a schematic representation of a side view of a latch closure with lock carrier and lock stock;

FIG. 2

a schematic representation of a perspective view of a first closure bearing;

FIG. 3

a schematic representation of a perspective view of a second closure bearing;

FIG. 4

in a schematic representation of a side view of a mounted on the rail foot and switch tongue latch closure according to FIG. 1 ;

FIG. 5

in a schematic representation of a side view of the first closure bearing according to FIG. 2 ; and

FIG. 6

in a schematic representation of a lateral view of the second closure bearing according to FIG. 3 ,

The FIG. 1 shows a schematic representation of a view of a Weichenverstellmechanismus 2 - hereinafter called pawl 2. The latch closure 2 includes, inter alia, a closure carrier 4 and a closure bearing 6. In the closure bearing 6, a closure pawl 10 is held pivotably. The latch closure is moved in one or the other direction by means of a cam bar. With regard to the design of a latch closure is based on the European patent application EP 0 624 508 A1 referenced, which is hereby considered completely imported. As in FIG. 4 Shown, the lock carrier 4 is clamped to a rail foot 12 of a railroad rail 14. In the lock carrier 2, the cam bar 6 is called - guided sliding. The cam bar 6 is used in both directions of an arrow 16 for adjusting a switch tongue 18 and the associated locking pawl 10. The closure bearing 6 is designed so that it is attached on the one hand to the switch blade 18 and on the other hand, the closure pawl 10 carries pivotable.

In particular, the closure bearing 6 has always been carried out according to the prior art as a casting or as a forged part, which causes considerable costs in the procurement and the review. As in the Figures 2 and 3 Shown, the closure bearing 6 'and 6 "now consist of a substantially identical profile of rectangular tube, which simulates the corresponding shape of the closure bearing 6.

Alternatively, the locking bearings 6 ', 6 "could also be punched out of a steel sheet and then created by bending, and the seam during bending is then welded to give a completely closed profile FIGS. 5 and 6 show these closure bearing 6 'and 6 "accordingly in a lateral schematic representation.

In this way, a much simpler presentation of the closure bearing 6 ', 6 "results because the Steel profiles are usually already subjected to the production of an automated test (eg crack testing in the manufacturing process), which also significantly simplifies the subsequent testing effort. In addition, eliminates the design of various models and dies, because the various embodiments of the lock stock 6 ', 6 "tailored accordingly (eg laser or water jet) or can be machined (CNC machine)

Claims (3)

Switch adjustment device, in particular pawl lock, with a closure pawl pivotally attached to a lock bearing,
characterized in that
The lock bearing is made of a steel profile with a rectangular cross section or bent from a steel sheet. Switch adjusting device according to claim 1,
characterized in that
the steel profile is a standardized rectangular tube, which is milled into the desired shape or otherwise shaped like a metal. Switch adjuster according to claim 1 or 2,
characterized in that
the steel profile is a steel sheet which is cut to the desired shape before being bent and welded after bending.

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