Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B7/00—Switches; Crossings
  • E01B7/02—Tongues; Associated constructions

Definitions

• the invention relates to a roller device for a second rail section assigned to a first rail section, such as a stock rail, which can be adjusted along an adjustment path and can be attached to it or locked with it, such as a switch tongue, comprising a base such as a sliding chair for the second rail section as well as resilient or resiliently mounted roller elements associated with it along the adjustment path and preferably emanating from a common holder, on which the second rail section can be supported at least during adjustment.
• a roller device for a second rail section assigned to a first rail section such as a stock rail
• a base such as a sliding chair for the second rail section
• resilient or resiliently mounted roller elements associated with it along the adjustment path and preferably emanating from a common holder, on which the second rail section can be supported at least during adjustment.
• roller elements are supported on at least two spring elements of different characteristics, one of the spring elements having an essentially constant rigidity and the other spring element element has a variable stiffness.
• the spring elements are mechanically coupled to one another in such a way that each roller element has a resilient state when the roller elements are loaded by the switch tongue.
• a switch tongue roller device which is connected to a roller which rolls on a surface when the switch tongue is moved.
• a switch tongue is moved on a support roller, which projects to a considerable extent over a bearing block.
• a switch tongue is supported on rollers in order to reduce the sliding friction when adjusting.
• the present invention is based on the problem of developing a roller device of the type described at the outset in such a way that possible force peaks are prevented or reduced when the second rail portion, which is adjustable relative to the first rail portion, is converted, provided that this is to be supported on roller elements.
• the problem is essentially solved in that the second rail section rests on at least one of the roller elements in the position in contact with the first rail section, the (first) roller element being aligned with the free or locked second track section in alignment with the free surface of the support or protrudes slightly above it, or wherein the first track element protrudes above the free surface of the base, the second track section rests weightless or almost weightless on the base.
• the second rail section like the switch tongue, always rests on the foot side on a roller element, that is to say also in the adjacent or locked position. As a result, both the sliding forces are reduced when the second track section is opened and when the foot hits the following roller elements.
• the holder Due to the spring characteristic of the elastic support, which consists of elastomer material, the holder is raised slowly during the adjustment of the second rail section, since during the adjustment the surface over which the load is removed increases with the result that increases the rigidity of the elastic mounting. As a result, in the remote position of the second rail section, the wedge shape of the elastic bearing that was present at the beginning has been lost.
• successive rollers can be mounted differently or have different spring properties in such a way that the first rail section obvious role sinks more under load than the distant one.
• the invention is characterized in that when the second rail section is fixed with its foot between roller elements with its foot in relation to the first rail section, the roller element running above the foot is height-adjustable and / or elastically supported.
• Fig. 1 shows a section of a switch area with a portion of
• FIG. 2 shows the rail foot according to FIG. 1, but with the switch tongue in a remote position
• Fig. 3 shows a detail of a second embodiment of a switch with adjacent switch tongue
• Fig. 4 is a plan view of the detail of FIG. 3, partially broken away, but without rail sections and partially without their fastenings.
• FIG. 1 a foot (10) of a switch tongue is shown purely in principle, which in FIG. 1 locks or is placed against a stock rail, not shown, and is arranged in FIG.
• roller elements (12), (14) and (16) are arranged, which emanate from a common holder (18) which in turn has an elastic intermediate layer (20) consisting of preferably elastomer on a base (22). is supported.
• roller elements (12), (14), (16) protrude approximately 5 mm above the surface of a support such as a sliding chair (24) for the switch tongue. However, if the switch tongue acts on the roller elements (12), (14), (16), these are recessed by approximately 1 mm with respect to the free surface of the sliding chair (24).
• the invention provides that the foot (10) also when the switch tongue is locked or in contact, it rests on a roller (12) which, when the switch tongue is in contact or locked, is pressed down and preferably flush with the surface of the sliding chair, as is to be indicated by FIG. 1.
• the elastic intermediate layer (20) becomes to a extent when load is only transferred in its front area, that is to say via the roller element (12) compressed that there is a wedge shape, which can be seen in principle in Fig. 1.
• the roller (14) following in the adjustment path V of the switch tongue is stronger than normal in relation to the free surface of the sliding chair (24) sunk in, so that the front edge (26) of the switch tongue approaches the roller element (14) quasi tangentially, whereby force peaks during adjustment are largely excluded.
• a mechanical reinforcement (30) is incorporated, which consists of a coil spring assembly can.
• the rail foot (10) In the remote position, the rail foot (10) is fixed or clamped between the roller element (16) arranged on the underside and an upper roller element (32) which is supported on the upper side (34) of the foot (10).
• the roller element (32) is height-adjustable on the one hand via its holder (36) and on the other hand is elastically mounted.
• the holder (36) has an elastic section (38).
• a switch tongue (40) with its foot (10) and an associated cheek rail (42) is shown, which starts from a plate (44) and the foot (46) on the one hand from a clamping plate (48 ) and on the other hand is fixed by a section (50) of a holder (52) which extends along the top of the rail foot (46) and which in turn can be welded to the plate (44).
• two roller elements (54) and (56) extend from the holder (52), on which the foot (10) of the switch tongue (40) is supported both in the adjacent and in the remote position. At least the first roller element (54) is flush with the free surface of a sliding chair, not shown, or projects above it its surface slightly before, if there is a load through the switch tongue (40). This results in the advantages which have been explained in connection with the exemplary embodiment in FIGS. 1 and 2.
• At least the roller element (54), which is rigidly supported via an axis (58), has a vibrating metal structure, i. that is, between an outer metallic sleeve (62) and an axle-side sleeve (64) an intermediate layer (66) made of elastic material is arranged as vulcanized.
• the roller element (54) experiences a spring characteristic in such a way that when the switch tongue (40) is adjusted, it slides along it without the foot (10) sliding flatly along the sliding chair, which leads to high friction losses.
• the following roller element (56) which is also rigidly mounted on an axis (60) but has lower spring properties, is approached almost tangentially when the switch tongue is adjusted.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Rolls And Other Rotary Bodies (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Formation And Processing Of Food Products (AREA)
• Railway Tracks (AREA)
• Seats For Vehicles (AREA)
• Power Steering Mechanism (AREA)
• Bearings For Parts Moving Linearly (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6510509

Family Applications (1)

Country Status (8)

Families Citing this family (6)

Citations (6)

Family Cites Families (1)

• 1994
  • 1994-02-17 DE DE4405115A patent/DE4405115A1/de not_active Withdrawn
• 1995
  • 1995-02-17 DK DK95910498T patent/DK0745161T3/da active
  • 1995-02-17 AT AT95910498T patent/ATE216744T1/de not_active IP Right Cessation
  • 1995-02-17 EP EP95910498A patent/EP0745161B1/de not_active Expired - Lifetime
  • 1995-02-17 PL PL95315977A patent/PL177091B1/pl not_active IP Right Cessation
  • 1995-02-17 WO PCT/EP1995/000586 patent/WO1995022657A1/de active IP Right Grant
  • 1995-02-17 ES ES95910498T patent/ES2176320T3/es not_active Expired - Lifetime
  • 1995-02-17 DE DE59510183T patent/DE59510183D1/de not_active Expired - Fee Related
• 1996
  • 1996-08-16 FI FI963211A patent/FI963211A0/fi not_active IP Right Cessation

Patent Citations (6)

Also Published As

Similar Documents

Legal Events