DE1092345B - Inside pusher for entrance doors of rail vehicles, especially for passenger transport - Google Patents

Description

GERMAN

The invention relates to an inside handle for entrance doors of rail vehicles, in particular for passenger transport, which is pushed onto the mandrel and by means of a claw coupling and a clock spring is connected to this.

In the case of entry doors of passenger coaches, there is the disadvantage that travelers, especially young people by accidentally, playfully or thoughtlessly pressing the inner button while driving Open the entrance doors and thereby rush out. A door that is open while the vehicle is in motion brings you further nor the disadvantage that it protrudes beyond the standard profile of the railways, so that they are fixed by fixed route components easily torn out or a transport hazard to others traveling on parallel tracks Can bring about trains.

To eliminate this drawback, locking devices are already known that have a double Have closure or two successively coming into effect closures. It is also at Motor vehicles known for which the object underlying the invention also applies, the inside handles to be provided with special safeguards, such. B. the coupling of the handle with the mandrel by pressing a dome and a counter-rotating movement of two parts should solve the problem.

In a known lock for entry doors of passenger coaches, the inside handle is special Pawls fixed on the door. In this lock, a coupling part is already fixed on the mandrel applied and a sleeve inserted in the inside handle, which forms the counterpart of the coupling. the The clutch is designed as a claw clutch and bridged with a clock spring. It's also in the Claw coupling provided a play of 45 °. But it has not been recognized that a completely sufficient The inside handle is secured against unintentional opening by means of the clutch play only can be achieved and that any additional locking of the inside handle can be omitted.

In an inside handle for motor vehicle doors, however, it has already been proposed to have a to protect the pivoting handle parallel to the door against unintentional actuation, that its free end rests against the door when pulling and that it initially has an idle stroke from this position executes and only after overcoming the game against a spring force actuating the door latch Takes the linkage.

According to the invention is now with an inside handle, which the special conditions of the coaches and which, as indicated above, is pushed onto the mandrel and by means of a claw coupling and a clock spring with this in the inside handle for entrance doors

of rail vehicles,
especially for passenger transport

Applicant:

Deutsche Bundesbahn, represented by the Federal Railway Central Office Minden,

Minden (Westphalia), Weserglacis 2

Dipl.-Ing. Bruno Kirchhoff, Minden (Westphalia),
has been named as the inventor

binding is provided in the coupling a game of about 90 to 160 °, so that when unlocking the Lock by the inside handle this only within the clutch play against the action of the The clock spring must be swiveled until the mandrel is taken along, the spring pressing the inside lever always pushes into the uncoupled position after release. According to a preferred embodiment the inside handle can be in a hiding position in its uncoupled position. The hiding place can be formed by a handle-like finger protection strip or a protection bar. Further the spring and the claw coupling can be arranged in a pot-like recess of the inside handle be. The mandrel can consist of one connected to the lock or the external handle Main mandrel or shaft coupling part and a mandrel part for the inside handle exist, both mandrel parts are firmly connected to each other by a pin connection. In addition, a coupling piece can be placed in the inside handle be used non-rotatably, which has recesses in which the cams of the claws carrying Engage the coupling sleeve.

An exemplary embodiment is shown in the drawings. It shows

Figure 1 shows a partial longitudinal section through the internal handle according to the invention and

Figure 2 shows a section along the line xy in Figure 1.

The reference number 1 identifies the lock nut of the lock, not shown, with the one known per se Double pin connection and conical pin screw connection 3, so that a fixed connection with the lock nut 1 has arisen for the shaft coupling part 2. In the

009 630/66

Mandrel coupling part 2 is the actual axle shaft 4 of the Inside handle 11, 12 inserted, and both parts 2 and 4 are arranged captive by the Pin 5 firmly connected to each other. On the axle shaft 4 is a torsion spring 15 with preload, namely pushed on together with the coupling sleeve 6 and the coupling ring 7, the torsion spring with one spring end in a bore in the coupling sleeve 6 and with the other spring end in a groove shown in dashed lines of the axle shaft 4 engages. To the aforementioned parts of the reference numbers 2 to 7 and 15, the inside handle 11, 12 with its inner coupling piece 8 is pushed on like a capsule. The coupling piece 8 is secured against rotation by the pin 9, whereas the pin screw 10, which engages with its pin in the annular groove of the axle shaft 4, the inside handle against axial Pulling off protects. The reference number 13 identifies the existing bearing plate of the door lock Car door and the reference number 14 a handle-like finger protection strip or protective bar, as a hiding place for the crank-shaped inside lever handle.

How it works: When the car door is opened from the outside in the direction of arrow ^ ₁ , not only is the axle shaft 4, which is firmly pinned to the outside handle, moved in the direction of arrow R _x , but also the inside handle 11, 12 at the same time, because on the one hand the stop lugs A and B of parts 2 and 6 and on the other hand through the driver cam D of the coupling ring 7, which engages both in a recess (not visible) in the coupling sleeve 6 and in a recess in the coupling piece 8, a coupling for the direction of rotation R ₁ . Every closing movement of the outside handle is followed by the inside handle through the force of the pretensioned spring, which presses the driver claws B against the stop claws A.

When the car door is opened from the inside in the direction of arrow R ₁ , only the parts of the reference numbers 6, 7, 8, 9, 10, 11 and 12 are initially taken along at a certain idle angle (about 90 to 160 °) and the spring 15 is tightened more strongly . The lock follower 1 and the outer door handle and thus the lock bolt are not carried along until the driver cam C of the coupling sleeve 6 strikes the cam A of the shaft coupling part 2. In the basic position shown in Fig. 1, the crank-shaped inside handle is on the one hand in a pressure-locked position due to the door lock (not shown) in the direction of arrow R ₂ , and on the other hand it is also in a hiding position, from which it can only be removed by pulling the handle in the direction of arrow R. ₁ can be unscrewed.

Both a well-known finger protection strip and a simple protective bar handle can be used as a hiding place be provided, which is attached, for example, to the door frame. Instead of the wave-like Coupling of parts 2, 6, 7 and 8 can also be used with any other known coupling type other known spring designs can be used.

Claims (6)

Patent claims: 1. Inside handle for entrance doors of rail vehicles, especially for passenger transport, which is pushed onto the mandrel and by means of a claw clutch and a clock spring with this is in connection, characterized in that a game of in the coupling about 90 to 160 ° is provided, so that when the lock is unlocked by the inside handle this can only be pivoted within the clutch play against the action of the clock spring must, until the mandrel is taken along, and that the spring releases the inside handle always pushes into the uncoupled end position. 2. Inside handle according to claim 1, characterized in that the inside handle is at his uncoupled end position is in a hiding position. 3. Inside handle according to claim 2, characterized in that that the hiding place by a handle-like finger protection strip or a protective bar is formed. 4. Inside handle according to claim 1, characterized in that the dog clutch and the Spring are arranged in a pot-like recess of the inside lever. 5. Inside handle according to claim 4, characterized in that the mandrel consists of one with the Lock or the outside handle connected main mandrel or mandrel dome part (2) and a mandrel part (4) for the inside handle and both mandrel parts by a pin connection are firmly connected to each other. 6. Inside handle according to claim 4, characterized in that in the inside handle a coupling piece (8) is rotatably arranged, which has recesses in which the cams (D) of the claws (B) carrying the coupling sleeve (6) engage. Considered publications:
German patents No. 232 917, 292 159,
306176; Austrian Patent No. 30767;
U.S. Patent Nos. 2676050, 2,783,074. Legacy Patents Considered:
German Patent No. 1,068,127. 1 sheet of drawings