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
  • E01B7/10—Frogs
  • E01B7/14—Frogs with movable parts
• • 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
  • E01B7/10—Frogs
  • E01B7/12—Fixed frogs made of one part or composite

Definitions

• the invention relates to a frog tip, which is movably arranged with its underside between wing rails on a support such as a sliding chair and can be locked when at one of the wing rails in the position (end position), preferably by means of at least one locking clip which is guided by a locking part.
• the known movable centerpiece tips are moved back and forth on a sliding chair between their end positions, so that they can then be locked when they rest on a wing rail. Moving on the sliding chair means that frequent checks and maintenance are required. In particular, lubrication work is often required, and the lubricant itself can lead to environmental pollution.
• the present invention is based on the problem of developing a frog tip of the type described in the introduction in such a way that a reduction in maintenance is possible without the need for structurally complex measures or special materials for the base and frog tip.
• the object is essentially achieved in that the frog tip is arranged between the positions on the wing rails at a substantial distance from the base.
• the centerpiece tip is supported on the base like a sliding chair only in the end positions, that is to say in the locked states, whereas when moving from one end position to the other, there is a spacing from the base. This results in a reduction in maintenance while saving lubricants.
• an element originates directly or indirectly from the frog tip on the foot side, which has a projection extending along or approximately along the central axis of the frog tip, and that the element interacts with a roller element whose central axis is in or approximately in a plane of symmetry running between the wing rails.
• the element on the roller element side can have a surface which is composed of two outer concave sections and a central, preferably plateau-like section, which forms the projection.
• the centerpiece tip is then raised and thus spaced apart from the base when the projection or its flanks slide over the roller element.
• the radii of curvature of the outer sections correspond at least in the area adjacent to the central section to or approximately the radius of curvature of the roller element.
• the roller element is preferably supported on at least two spring elements of different characteristic curves, one spring element having an essentially constant stiffness and the other spring element having a variable stiffness, and the spring elements being mechanically coupled to one another in such a way that the Centerpiece-loaded roller element each spring element has an effective travel.
• the invention is characterized in that the spring elements extend on opposite sides of a carrier element and can be adjusted in relation to one another by means of a connecting element such as a screw, such that the spring element effecting damping runs with the variable rigidity on the side of the carrier element facing away from the frog tip that the spring element with the variable rigidity when the roller element is not loaded is attracted by the connecting element against the supporting element in such a way that a spring effect is excluded or essentially excluded, and that when the roller element is loaded, each of the spring elements has the usual additional loading and unloading of the roller element receiving spring travel lengths.
• a connecting element such as a screw
• the spring elements are, on the one hand, a suspension spring and, on the other hand, a damping spring, at least the latter, but preferably both being elastomer springs.
• the damping spring has a stiffness that is preferably ten times smaller than that of the suspension spring.
• the damping spring When the spring elements are preloaded, i.e. when the roller element is not loaded, the damping spring is set to block or almost to block, in order to then move into a working position (working point) when the roller element is loaded by the tip of the frog, which makes it possible for conventional Loading and unloading of the roller element by the bias point acting on the centerpiece tip, ie the block position is not reached.
• the damping spring provides suspension and thus damping in both directions, so that the tip of the frog cannot hit a surface such as a sliding chair.
• a rapid vibration reduction in the centerpiece tip itself is brought about.
• the working position of the roller elements is predetermined by the rigidity of the suspension spring, that is, the level at which the centerpiece tip comes to rest.
• the element having the projection starts directly or indirectly from the frog tip, this is preferably formed by a cuboid section of locking clip receptacles connecting the frog tip.
• rocker supporting it is arranged below the frog tip, the axis of rotation of which lies in or approximately in the plane of symmetry running between the wing rails.
• the rocker has a rectilinear or angled bar with rollers arranged symmetrically to the axis of rotation and interacting with the underside of the frog, the same diameter.
• the centerpiece tip is assigned two or more rockers, the axes of rotation of which, with the same dimensions, should run at equidistant distances from one another or from the inner longitudinal edges of the wing rails, viewed in FIG.
• the centerpiece tip rolls on the roller elements when they are moved, with pivoting during movement from one end position to the other end position, with the result that the centerpiece tip is spaced apart from the base.
• the centerpiece tip rests on one of the wing rails at the position adjacent to the roller element close to the wing rail and touches the other roller element with its longitudinal edge facing away from the wing rail.
• L distance between the axis of rotation of the rocker and the axis of the roller element
• X the distance between the longitudinal edge of the underside of the syringe and a normal extending from the axis of the roller and an imaginary extension of the underside of the frog tip
• H lifting height of the frog tip.
• the arrangement with the element having the projection and the rocker arrangement is not only limited to a frog tip itself, but can also be used wherever a track section has to be moved between end positions.
• the relevant proposals can also be applied to switch tongues.
• the locking clip is preferably displaceable in the longitudinal direction of the frog tip from a locking clip receptacle connected to the frog tip is based on the fact that at least one roller element extends from the locking clip, which can be detected by a sliding element which passes through the locking piece and can be displaced perpendicularly or almost perpendicularly to the longitudinal axis of the frog tip, and that the roller element can be supported on a support which runs parallel or approximately parallel to the direction of displacement of the sliding element and which is in turn arranged in a fixed position to the closure piece or starts from it.
• the roller element is held in a receptacle which is at least partially limited by the sliding element and the support, so that a secure contact of the centerpiece tips with one of the wing rails is ensured.
• the roller element itself preferably starts from a leg of the closure clip running below a closure rail assigned to the wing rails.
• two roller elements extend from the leg and that one roller element is arranged in the end region of the leg.
• each of the roller elements is fixed in receptacles formed by sections of the sliding element and the support such as a track.
• 1 a frog tip locked in a first end position with a locking device
• 2 shows the locking device according to FIG. 1, but in a position locking the frog tip in a second end position
• FIG. 3 shows a second embodiment for locking a frog tip
• FIG. 4 is an enlarged view of the locking device according to FIG. 3,
• FIGS. 1-4 shows a detail of the locking devices according to FIGS. 1-4
• Closure clamp receptacles (20) and (22) are connected to the frog tip (10) by means of connecting plates (16) and (18), each of which has rotatable clamps (24) and (26) about axes (24) and (26) running parallel to the longitudinal axis of the frog tip. 28) and (30), the locking pieces (32) and (34) pass through, the locking rails (36) or (38) or other fastenings associated with the wing rails (12) and (14).
• the brackets (28) and (30) can also be moved in the longitudinal direction of the closure rails (36).
• a slide (40) is also received, through which the locking clips (28) and (30) are gripped in order to move the frog tip (10) from one end position to the other and at the same time to lift off the sliding chair while moving.
• a support (42) is also received, through which the locking clips (28) and (30) are gripped in order to move the frog tip (10) from one end position to the other and at the same time to lift off the sliding chair while moving.
• a support (42) to be referred to as a track.
• the brackets (28) and (30) each have a leg (44) or (46) which extends below the closure rail (36) or (38) and which has rollers (48), (50) or ( 52), (54) which on the one hand roll along the track (42) and on the other hand are gripped by the slide (40).
• the slide (40) preferably consists of two parallel legs, between which the raceway (42) runs, the roller elements (48), (50), (52), (54) have rollers with different diameters, in order to always ensure a rolling motion.
• the slide (40) In order to make the displacement of the slide (40) largely frictionless, the slide (40) is supported on rollers (56) and (58) which are mounted on the support (42). To rule out an uncontrolled lifting of the slide (40), lie on the Top of the slide (40) on rollers (60) and (62), which extend from the closure pieces (32), (34).
• the slide (40) has channel-like receptacles (64), (66) and (68), (70) for the rollers (48) and (50) which run in opposite directions. or (52) and (54), the channels (64), (66), (68) and (70) each being delimited by lower ramp-shaped flanks which have the reference numerals (72), (74), (76 ) and (78).
• the outer edge of the track (42) has receptacles (80) and (82) adapted to the rollers (48) and (54), in which the roller element (48) (Fig. 1) and (54) (Fig. 2) is fixed when the frog tip (10) bears against the wing rail (12) (FIG. 1) or wing rail (14) (FIG. 2) and is locked.
• the slide (40) is shifted to the right in the exemplary embodiments, thereby releasing the roller element (48) on the one hand and on the other hand this is gripped by the bevel (72) and moved into the channel-shaped receptacle (64).
• the leg (44) of the clip (30) and thus the frog tip (10) is raised.
• roller (50) slides out of the channel (66), which, as mentioned, runs at an incline, in such a way that when the wing rail (14) is in contact with the centerpiece tip (10), it is lowered again and onto the not shown Documents such as sliding chairs, which are arranged in front of or behind the locking devices.
• the roller (50) can then additionally rest on a section (86) of the track (42).
• the rollers (52) and (54) are of course shifted and fixed in the opposite sense.
• FIG. 3 differs from that of FIGS. 1 and 2 in that the lifting of the frog tip (10) does not, or not only, via clips (88) and (90) starting from the locking clip receptacles (20), (22) ) takes place, but via a cuboid element (94) which is connected to the frog tip (10) and has a projection (92) and which interacts with an elastically mounted roller element (96) in the manner described below.
• an essentially horizontal leg (98) or (100) of the closure clip (88) or (90) only has in its end region (102) or away from the frog tip (10). (104) the roller element (48) or (54), which, however, interacts and is fixed in the manner described above with the slide (40) and the raceway (42) or sections thereof.
• FIGS. 1, 2 and 5, FIG. 5 in the actual sense representing a detailed illustration of FIG. 3.
• the projection (52) extends along the central axis (106) of the frog tip (10).
• the surface (108) of the cuboid block (94) facing the roller element (96) is composed of outer concave sections (110) and (112) and a central plateau-like section forming the projection (52).
• the roller element (96) can be rotated about an axis (114) which runs parallel to the longitudinal axis of the frog tip (10) and lies in a plane of symmetry (116) running between the wing rails (12) and (14).
• the regions of the outer sections (108) and (110) adjoining the plateau-like projection (92) furthermore have curvatures which are approximately equal to the curvature of the rolling element (96). This causes a rolling sliding of the Surface (108) of the cuboid block (94) on the surface of the roller element (96), which reduces wear.
• the locking clips (88) and (90) are described in the above Moved by means of the slide (10) from left to right, whereby the interaction of the rolling element (48) with the ramp (72) causes a lifting, and on the other hand, the surface (108) rolls on the roller element (96) such that due to the protrusion directed away from the frog tip (10), this is raised.
• roller element starts directly or indirectly from the centerpiece tip (10) and is assigned an element corresponding to the block (94) with the projection, which extends along the plane of symmetry (160).
• a rocker (118) can be seen, by means of which the frog tip (10) is moved from one end position to the other in such a way that only in the end positions is supported on a sliding chair, whereas during the Ver ⁇ a sliding distance to this is ensured.
• the frog tip (10) is in the position in contact with the wing rail (12), that is to say the left end position, which corresponds to FIGS. 1 and 4.
• the underside (120) of the frog tip (10) rests on a roller (122) which starts from a beam (124) of the rocker (118) which can be pivoted about an axis (126), namely from the wing rail (12) Section.
• the line of contact or surface (128) is between the underside (120) of the frog tip (10) and the roller element (122) in the support plane of the sliding chairs or sections arranged between the rocker (s) (118).
• the beam (124) has a second roller element (130) which is arranged symmetrically with respect to the axis of rotation (126) with respect to the roller element (128) and on which the centerpiece tip (10) is locked with the wing rail when the end position is locked on the wing rail (12) (12) facing away from the longitudinal edge (132).
• the rocker (118) Due to the weight acting on the rocker (118) from the centerpiece tip (10), the rocker (118) is swiveled clockwise at the same time, the bar extending in the position (Fig. 7) between the wing rails (12) and (14) (124) runs horizontally. In this position, the underside (120) of the frog tip (10) is supported on both roller elements (122) and (130).
• H lifting height of the frog tip (10).
• FIGS. 3 to 8 are not only limited to frog tips, but can also be used wherever rail parts are to be moved between end positions, such as. B. with switch tongues.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Seats For Vehicles (AREA)
• Surgical Instruments (AREA)
• Electrotherapy Devices (AREA)
• Orthopedics, Nursing, And Contraception (AREA)
• Turbine Rotor Nozzle Sealing (AREA)
• Materials For Medical Uses (AREA)
• Percussion Or Vibration Massage (AREA)
• Massaging Devices (AREA)
• Chairs For Special Purposes, Such As Reclining Chairs (AREA)
• Cold Cathode And The Manufacture (AREA)
• Diaphragms For Electromechanical Transducers (AREA)
• Catching Or Destruction (AREA)
• Bipolar Transistors (AREA)
• Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
• Magnetic Heads (AREA)
• Details Of Garments (AREA)
• Push-Button Switches (AREA)
• Prostheses (AREA)
• Train Traffic Observation, Control, And Security (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6487716

Family Applications (1)

Country Status (10)

Cited By (3)

Families Citing this family (4)

Citations (4)

Family Cites Families (2)

• 1993
  • 1993-05-10 DE DE4315559A patent/DE4315559A1/de not_active Withdrawn
• 1994
  • 1994-05-06 DE DE59406741T patent/DE59406741D1/de not_active Expired - Lifetime
  • 1994-05-06 AT AT94917581T patent/ATE169976T1/de active
  • 1994-05-06 KR KR1019950704920A patent/KR960702562A/ko not_active Withdrawn
  • 1994-05-06 AU AU69253/94A patent/AU6925394A/en not_active Abandoned
  • 1994-05-06 EP EP94917581A patent/EP0698144B1/de not_active Expired - Lifetime
  • 1994-05-06 WO PCT/EP1994/001438 patent/WO1994026976A1/de active IP Right Grant
  • 1994-05-06 DK DK94917581T patent/DK0698144T3/da active
  • 1994-05-06 ES ES94917581T patent/ES2121209T3/es not_active Expired - Lifetime
  • 1994-07-06 TW TW083106164A patent/TW258765B/zh not_active IP Right Cessation
• 1995
  • 1995-11-09 NO NO954505A patent/NO954505L/no unknown

Patent Citations (4)

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