FI61843C - ANORDINATION FOR FLOWERS WITH STABILIZER - Google Patents

Description

RSF ^ l [B] (11) NOTICE OF PUBLICATION, S «J, ΛοΑτ

Ma lj k} utlAggningsskrift oio4o C yPat (? Nttl granted on 11 10 1982 § fQ'W (4¾ 'Patent naeddelat ^ ^ (51) Kv.ik? /Im.ci.3 B 61 G 11/00 FINLAND —FINLAND pi ) htM «lhik ^ -Piw» twilcni. | 771 375 (22) Htkwnispllvt - AiwBknlnpdkf 29-0U.77 (23) AlkupUvt — Glltlf hattdai 29. OU. 77 (41) Interpreters public - Bllvlt ofUntllj 0U. 11U. '* "H *” 11 · »11! *" (+0 »» »«> * <- * «i. I ~ u—. *« .- vo & 8?

Patent- och raglstentyralten 'AntOktn uttegd och utUkrtfMn pubUcerad 30. Ob. Ö2 (32) (33) (31) Pyy ** ty «cuoikMis — B« | ird priorlttt 03-05-76 15.07.76 Federal Republic of Germany-Förbunds-republiken TtysklandiDE) P 2619U69.U p 2631815.0 (71) Ringfeder GmbH, Postfach U86, D-U150 Krefeld 11-Uerdingen, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (72) Kurt Rommerskirchen, Tönisvorst, Gerhard Theuner, Duisburg, Peter Fabel, Minden, Federal Republic of Germany-Förbundsrepubliken lyskland (DE) Ab (5U) Device for flexible reception of impact forces - Anordning för fjädrande upptagande av stötkrafter

The invention relates to an apparatus for the flexible reception of impact forces, such as, for example, a sleeve bumper for rail vehicles or the like, consisting of two telescopically nested, spring-tensioned housing parts provided with a spring-loaded support at one spring end. , in order to limit the device, and thus to determine the biasing force of the spring, the second housing part has half shells surrounding the second housing part and cooperating with the shoulder of this part.

DE-AS 1 018 087 discloses a sleeve bumper for rail vehicles with two telescopically nested housing parts which are tensioned against each other by the force of a spring. The housing parts are provided to support the spring at the spring-side end with a pressure plate with them. In order to limit the ejection of the sleeve buffer and thus to determine the biasing force of the spring, the second housing part, i.e. the buffer sleeve, has half shells surrounding the second housing part, i.e. the buffer arm. These half-shells work precisely together with the shoulder of the bumper arm and are held together by a threaded connection. In this case, the difficulty is to secure the threaded connection in accordance with the dynamic loads acting on the core buffer. Besides, sealing the sleeve-buffer to prevent dust and moisture from penetrating into it is quite expensive.

The object of the invention is therefore to make such a device more resistant, in particular to loads of dynamic quality, and more tight to prevent the penetration of dust and moisture into the device.

According to the features of the invention, the task is solved in such a way that the half-shells are connected to the end opposite to the pressure plate of the second housing part by welding.

According to an embodiment of the invention, in order to avoid deformations even under extreme stresses, the invention is characterized in that the second housing part, which cooperates with the half-shells via its shoulder, has a reinforcing shoulder at its pressure plate end which coincides with the pressure plate.

In order to prevent the rotation of this plate when the pressure plate, i.e. the buffer plate of the second bumper, is rectangular, the second embodiment of the invention is characterized in that the shoulder cooperating with the half-shell half-shells is to receive a conductive strip in the form of a piece or a recessed wedge.

In view of the inevitable wear in the cooperation of the core buffers and the requirement to keep the maintenance costs as low as possible, according to a third embodiment of the invention, the outer end surface of the impact side pressure plate is provided with a wear plate in a manner known per se. In this case, it is in the nature of the embodiment that the wear plate is placed in a corresponding recess formed in the pressure plate and welded to it. A steel wear plate in a bumper, the bumper plate of which is made wholly or partly of plastic, is already known from Swiss patent publication 370 109.

In order to reduce the clearance between the half-shells and the housing part surrounding them and thus to provide an optimal seal against dust and moisture, a sliding sealing sleeve can be placed between the half-shells and the second housing part.

For a simple structure of the device, the half shells may be formed of a simple ring.

The advantages obtained by the invention are based in particular on the fact that the device, due to its one-piece structure, is made more resistant to the stresses in use and more tight against dust and moisture.

Embodiments of the invention are described in the accompanying drawings and are explained in more detail below:

Figure 1 shows the device in longitudinal section.

Fig. 2 shows a section along the line II-II in Figs. 1 and 3. Fig. 3 shows the second embodiment partly in longitudinal section.

Figure 4 shows a third embodiment in partial length section.

Figure 5 shows a section along the line V-V in Figure 4.

Figure 6 shows a fourth embodiment in partial length section.

The sleeve bumpers according to Figures 1-5 consist essentially of an outer housing part 1 with pressure plates 1a, i.e. a buffer arm with a buffer plate, an inner housing part 2, i.e. a buffer sleeve with pressure plates 2a, and inner in parts 1 and 2 by means of a tensioning device 7 and which are '.r' 'I χ 61 843 4 prestressed. A welded wear plate 6 for the latter is arranged on the outer surface of the pressure plate 1a in the outer housing part 1.

According to Figs. 1 and 3, half shells 5 or a single-ring forming these half shells are welded to the end opposite the pressure plate of the outer housing part 1, the half shells 5 according to Fig. 1 being arranged as an axial extension of the outer housing part or to the corresponding recess in the inner wall. In both cases, the free front surfaces on the pressure plate 1a side of the half-shells 5 rest on the shoulder 2b of the inner housing part 2, as a result of which both housing parts 1 and 2 are held in place under the prestressing of the friction springs 8. Between the half-shells 5 and the inner housing part 2 a sliding sealing sleeve 4 is placed, which according to Fig. 1 is embedded in the half-shells 5 and according to Fig. 3 in the inner housing part 2. In case the half-shells 5 have only a small axial length, the sliding between housing parts 1 and 2 (not shown).

As shown in Figs. Alternatively, the conductor strip Ib (not shown here) can be embedded in the outer housing part 1 as a countersunk wedge.

The third embodiment according to Fig. 4 substantially corresponds to the embodiment according to Fig. 1, except for the rotation lock 3, which according to Fig. 5, as will be obvious, is inverted with respect to the embodiment according to Fig. 2.

In the embodiment according to Fig. 6, which is intended, for example, for use in heavy engineering, the order of the housing parts 1 and 2 (radially and axially) is inverted relative to Fig. 1 61 843 5 so that the description of the parts and the rotation lock 3 reference may be made to the description of Figures 1 and 2. It is to be understood that in the embodiment according to Fig. 6, the housing part 1 and the half-shells 5 can also be formed as shown in Fig. 3.

Finally, in all embodiments, the housing part 2 has a reinforcing shoulder 2d which coincides with the pressure plate 2a for better cross-sectional displacement and thus greater stability.

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Claims (6)

61 8 4 3 6 An apparatus for resiliently receiving impact forces, such as a sleeve bumper for rail vehicles or the like, consisting of two telescopically nested housing parts (1, 2) tensioned against the force of a spring (8), which at their spring-side ends are provided in one piece. a pressure plate (1a, 2a) for supporting the spring, thereby limiting the ejection of the device, and thus for determining the biasing force of the spring (8), the second housing part (1) is surrounded by the second housing part (2) and the shoulder of this part (2) half-shells (5) in exact cooperation with the core (2b), characterized in that the half-shells (5) are connected to the end opposite the pressure plate (1a) of the second housing part (1) by welding. Device according to Claim 1, characterized in that the second housing part (2), which cooperates with the half-shells (5) via its shoulder (2b), has a reinforcing shoulder (2d) at its pressure plate (2a) end, which connects to the pressure plate (2a). Device according to Claim 1 or 2, characterized in that the shoulder (2b) cooperating with the half-shells (5) of the second housing part (2) is designed to form a dimensionally precise rotation (3) which allows longitudinal movements of the housing parts (1, 2) relative to one another. provided with a groove-shaped notch (2c) with a housing part (1b) integral with the housing (1) fixed to the half-shell (5) or for receiving a conductive strip (Ib) in the form of a countersunk wedge. Device according to one of Claims 1 to 3, characterized in that the outer end surface of the pressure plate (1a, 2a) on the acting impact side is provided with a wear plate (6) in a manner known per se. Device according to one of Claims 1 to 4, characterized in that a sliding sealing sleeve (4) is arranged between the half-shells (5) and the second housing part (2). i. «'(.. 7 618 4 3 Device according to one of Claims 1 to 5, characterized in that the half-shells (5) are formed from a single-ring.