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CN-122003532-A - Toothed plate, pavement expansion joint device with toothed plate and method for fastening toothed plate to beam

CN122003532ACN 122003532 ACN122003532 ACN 122003532ACN-122003532-A

Abstract

The application relates to a toothed plate (16) for reducing noise in a road expansion joint device (1). The toothed plate (16) is configured such that it can be attached to the beam of the road expansion joint arrangement in cantilever fashion at least in some areas. The toothed plate (16) has a lower side (18) and an upper side (17) which can be driven over by a vehicle tyre, and the toothed plate (16) has a shape in plan view with at least one first toothed tip (19), the first toothed tip (19) having a first end face (25), the first end face (25) being at least approximately recessed from the upper side (17) towards the lower side (18) in a side view. The application further relates to a road expansion joint (1) having such a toothed plate (16) and to a method for fastening a toothed plate (16).

Inventors

  • Chris-tian B lanc
  • LEOPOLD MAYER

Assignees

  • 毛雷尔工程有限公司

Dates

Publication Date
20260508
Application Date
20241008
Priority Date
20231012

Claims (20)

  1. 1. A toothed plate (16, 16 a) for noise reduction in a road telescopic joint (1), the toothed plate (16, 16 a) being designed such that it can be attached in cantilever fashion to a beam (7, 10) of the road telescopic joint (1) at least in some areas, the toothed plate (16, 16 a) having a lower side (18) and an upper side (17) designed to be driven over by a vehicle tyre, and the toothed plate (16, 16 a) being shaped in plan view with at least one first toothed tip (19), It is characterized in that the method comprises the steps of, The first toothed tip (19) has a first end face (25), which first end face (25) is at least approximately recessed from the upper side (17) towards the lower side (18) in a side view.
  2. 2. The toothed plate (16, 16 a) according to claim 1, It is characterized in that the method comprises the steps of, The first end face (25) has at least one portion (26) running straight in the side view, the at least one portion (26) being angled at an angle (W1) of 45 ° or less, preferably 40 ° or less, to the upper side (17).
  3. 3. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, The toothed plate (16, 16 a) has at least one second toothed tip (20) in the plan view.
  4. 4. A toothed plate (16, 16 a) according to claim 3, It is characterized in that the method comprises the steps of, The second toothed tip (20) is arranged opposite to the first toothed tip (19) in the plan view, such that the toothed plate (16, 16 a) has a diamond shape in the plan view.
  5. 5. The toothed plate (16, 16 a) according to claim 4, It is characterized in that the method comprises the steps of, The second toothed tip (20) has a second end face (27), which second end face (27) protrudes at least approximately from the upper side (17) towards the lower side (18) in the side view.
  6. 6. The toothed plate (16, 16 a) according to claim 5, It is characterized in that the method comprises the steps of, The second end face (27) has at least one portion (28) running straight in the side view, the at least one portion (28) of the second end face being angled at an angle (W2) of 45 ° or more, preferably 50 ° or more, to the lower side (18).
  7. 7. The toothed plate (16, 16 a) according to claim 6, It is characterized in that the method comprises the steps of, The second end face (27) is parallel to the first end face (25) in the side view at least in some regions.
  8. 8. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, At least one tooth tip (19, 20) has at least one longitudinal side (20, 30, 31, 32) in front view, which longitudinal side (20, 30, 31, 32) extends from the upper side (17) towards the lower side (18) of the toothed plate (16, 16 a) in a concave manner at least in some areas.
  9. 9. The toothed plate (16, 16 a) according to claim 8, It is characterized in that the method comprises the steps of, The longitudinal sides (20, 30) recessed in some regions in the front view also have portions (33) extending in a protruding manner at least in some regions from the upper side (17) toward the lower side (18) of the toothed plate (16, 16 a).
  10. 10. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, In the plan view, the toothed plate (16, 16 a) has an elongated shape and has several toothed tips (19, 20) arranged parallel to each other.
  11. 11. The toothed plate (16, 16 a) according to claim 10, It is characterized in that the method comprises the steps of, The several toothed tips arranged parallel to each other are configured as a first toothed tip (19) or a second toothed tip (20).
  12. 12. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, At least one tooth tip (19, 20) is rounded at the front in the plan view.
  13. 13. The toothed plate (16, 16 a) according to claim 10, It is characterized in that the method comprises the steps of, In the plan view, a rounding is provided between two adjacent toothed tips (19, 20), which rounding is configured to protrude in the side view.
  14. 14. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, The toothed plate (16, 16 a) has at least one opening (37) extending from an upper side (17) of the toothed plate to a lower side (18) of the toothed plate, the at least one opening (37) being used for fastening the toothed plate (16, 16 a).
  15. 15. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, The toothed plate (16, 16 a) has at least one fastening base (39) on its underside (18), the fastening base (39) preferably having an annular shape.
  16. 16. The toothed plate (16, 16 a) according to claim 15, It is characterized in that the method comprises the steps of, At least one fastening base (39) is thus provided on the lower side (18) of a toothed plate (16, 16 a), which toothed plate (16, 16 a) is diamond-shaped in the plan view and has a first tip (19) and a second tip (20), the fastening base (39) being arranged centrally with respect to the intersection of a Longitudinal Axis (LA) of the toothed plate (16, 16 a) extending centrally through both tips and a transverse axis (QA) of the toothed plate (16, 16 a) extending centrally through both lateral corners (21, 22) of the toothed plate (16, 16 a).
  17. 17. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, The toothed plate (16, 16 a) has at least one protruding, preferably conical, centering pin (41) on the underside (18) of the toothed plate, the centering pin (41) serving to position the toothed plate (16, 16 a) on the respective perforated beam (7, 10).
  18. 18. The toothed plate (16, 16 a) according to claim 17, It is characterized in that the method comprises the steps of, The toothed plate (16, 16 a) has a diamond-shaped design with a first toothed tip (19) and a second toothed tip (20) and has two centering pins (41) on the underside (18) of the toothed plate (16, 16 a), the two centering pins (41) being arranged at a distance from one another on a centering axis (M2), the centering axis (M2) extending parallel to a transverse axis (QA) extending through two lateral corners (21, 22) of the diamond-shaped toothed plate (16, 16 a), the centering axis (M2) extending on one side of the first toothed tip (19).
  19. 19. Toothed plate (16, 16 a) according to claim 17 or 18, It is characterized in that the method comprises the steps of, The toothed plate (16, 16 a) is configured with a first toothed tip (19) and a second toothed tip (20) and has markings on an upper side (17) of the toothed plate, which markings enable the first toothed tip (19) to be distinguished from the second toothed tip (20).
  20. 20. Toothed plate (16, 16 a) according to one of the preceding claims, It is characterized in that the method comprises the steps of, The toothed plate (16, 16 a) is at least partially made of forged steel.

Description

Toothed plate, pavement expansion joint device with toothed plate and method for fastening toothed plate to beam The present invention relates to a toothed plate for noise reduction in a road expansion joint device, a road expansion joint device having at least one such toothed plate and a method for fastening such toothed plate to a beam of a road expansion joint device. Road expansion joint arrangements are used to bridge expansion joints, such as those in road bridges. A stretch seam is typically a seam between two structural members of a structure that can be inflated or deflated again. In order to ensure that the vehicle can safely pass such a telescopic seam in the road surface area, a road surface telescopic seam arrangement is provided in the telescopic seam. Depending on the size of the expansion joint to be bridged by the road expansion joint arrangement, these road expansion joint arrangements generally have a number of beams which are arranged in the region of the expansion joint and extend parallel to one another in the longitudinal direction of the joint. The beams may be beams permanently mounted on the edges of the seam. They are then called edge beams. For larger expansion joints, an additional beam is provided between the two edge beams. These additional beams are called center beams or sheets and are themselves movably mounted in the expansion joints on the cross beams bridging the expansion joints. In order to ensure that the distance between the centre beams remains evenly distributed both at large and small degrees of openness of the telescopic joint, such road telescopic joint arrangements are usually provided with mechanical control means. These mechanical control devices control the distance between the centre beams and thus ensure that the centre beams are always positioned at the same distance from each other in the telescopic joint and thus allow a safe passage of the vehicle. As the vehicle passes over the road expansion joint arrangement, noise emissions may be generated by impact noise generated by the vehicle's tires striking the edges of the beams arranged in the expansion joint, the edges of the beams being more or less transverse to the direction of travel. In order to reduce impact noise, it is known to arrange toothed plates with toothed tips on the edge beams and/or the center beams. The respective vehicle tire thus rolls continuously along the inclined edge onto the toothed plate and no longer impacts the edge of the beam extending transversely to the direction of travel. If several beams are used in the telescopic joint, it is also usual to arrange several toothed plates on the beams in such a way that the toothed plates engage in the space between adjacent or opposite toothed plates when two adjacent beams are pushed together. Such a universal toothed plate for noise reduction in a road expansion joint arrangement is disclosed, for example, in DE 101 08 A1, and is configured such that it can be attached to a beam of the road expansion joint arrangement in a cantilever manner at least in some regions. In addition, the toothed plate has a lower side and an upper side configured to be driven by a vehicle tire, and the toothed plate has a shape with at least one first toothed tip in plan view. However, a disadvantage of the known designs is that in order to close the gap between adjacent tooth plates, the tooth plates have to be pushed together completely, which results in a relatively large number of tooth plates being required. Another disadvantage of conventional tooth plates is that they use a locating template and tack welds for alignment and locating on the beam. This results in relatively high production and assembly costs for the road expansion joint arrangement with the aid of toothed plates for noise reduction. It is therefore an object of the present invention to provide an improved toothed plate and an improved road expansion joint arrangement which on the one hand allow further noise reduction, can be manufactured more easily, and on the other hand can be arranged in a manner which enables a reduction in the number of toothed plates required for bridging an expansion joint. According to the invention, the solution of the problem is achieved by a toothed plate according to claim 1, a road surface expansion joint arrangement according to claim 20 and a method for fastening a toothed plate according to claim 30. Advantageous further embodiments of the invention result from the dependent claims 2 to 19 and the dependent claims 21 to 29. The toothed plate according to the invention thus differs from a universal toothed plate in that the first toothed tip has a first end face (face side) which is at least approximately concave from the upper side toward the lower side in a side view. This means that a concave rather than a convex end face is used. The concave end face of the toothed plate is currently understood to be the end face that extends at an angle towards