Pressure-ball sliding doorstop

• US 20030051312A1
• Filed: 10/30/2002
• Published: 03/20/2003
• Est. Priority Date: 05/20/2000
• Status: Active Grant

• Current Assignee: Edscha Engineering GmbH (Acek Desarrollo y Gestión Industrial SL)
• Original Assignee: Edscha AG (Edcar Holding Gesellschaft Mit Beschränkter Haftung)
• Inventors: Heinrichs, Gundolf, Hoffmann, Peter, Duning, Ralf
• Granted Patent: US 6,842,943 B2
• Time in Patent Office: Days
• US Class Current: 16/50
• CPC Class Codes: E05C 17/203 concealed, e.g. for vehicles
• CPC Class Codes: Y10S 292/15 Door, checks, floor

Abstract

The invention relates to a doorstop, in particular for motor vehicles with a door retaining rod (1), arranged parallel to the door pivot, pivoted on a door assembly piece, door, or door column and a retainer piece (2) fixed to the other door assembly piece, whereby said retainer piece (2) and the door retaining rod (1) which passes therethrough are movably connected to each other by means of a stop device which determines particular door opening positions. The stop device comprises brake- and/or stop bodies (3), which are movably supported in the retainer piece against a spring force relative to the door retainer rod (1) and are thus pre-tensioned against brake ramps (4) and catch depressions (5) on at least one side of the door retainer rod (1), arranged perpendicular to the direction of movement. The retainer piece (2) comprises a plastic housing (10) with an opening (13) for the door retainer rod (1) and openings (25), perpendicular to the above opening and parallel to the pivot axis, for the brake and/or stop bodies (3) which slide therein. The brake and/or stop bodies (3) are sliding bodies in the form of a hollow cylinder (19), closed at one end by means of a semi-circular cap (14), which in the open end thereof accepts a pressure spring (12) which bears on the closing cap (14).

Claims

1. A doorstop, in particular for motor vehicles, having

a door retaining rod (1) articulated on a door assembly piece, door or door column parallel to the door pivot and

a retainer piece (2) fixed to the other door assembly piece,

the retainer piece (2) and the door retaining rod (1) which passes therethrough being moveably connected to each other by means of a catch device and

the catch device determining particular door opening positions and having brake and/or stop bodies (3), which

are movably supported in the retainer piece (2) against a spring force relative to the door retaining rod (1) and

are pre-tensioned against brake ramps (4) and catch depressions (5) on at least one side of the door retaining rod (1) transversely to the direction of movement,

characterized in that

the retainer piece (2) has a plastic housing (10) with an opening (13) for the door retaining rod (1) and guide openings (25) arranged perpendicular to the opening (13) and parallel to the pivot axis for the brake and/or stop bodies (3) which slide therein, and

the brake and/or stop bodies (3) are designed as sliding bodies in the form of hollow cylinders (19) closed at one end by means of a semi-spherical cap (14), which

in their open end accommodate a pressure spring (12) bearing on the closing cap (14) and guide this free of any tilt.

2. The doorstop as claimed in claim 1, characterized in that the brake and/or stop bodies (3)

project with their semi-spherical end into the opening (13)

as slide bodies bear pre-tensioned against sides of the door retaining rod (1) passing through the opening (13), these sides having the brake ramps (4) and catch depressions (5).

3. The doorstop as claimed in claim 1 or 2, characterized in that the brake and/or stop bodies are of plastic and the dome head of the cap (14) is truncated.

4. The doorstop as claimed in claim 1, 2 or 3, characterized in that the ends of the housing (10) are enclosed by U-shaped metal frames (11).

5. The doorstop as claimed in one of claims 1 to 4, characterized in that the pressure springs (12) are supported against the metal frames (11)

6. The doorstop as claimed in one of claims 1 to 5, characterized in that the door retaining rod (1) is composed of a metal core (7) covered with plastic and has a bearing eye (6) serving as pivot at one end and an abutment (9) as limit stop defining the open position of the door at the other end.

7. The doorstop as claimed in claim 6, characterized in that the brake ramps (4) and the catch depressions (5) are arranged on the sides of the door retaining rod (1) facing the pivot axis and are formed by or between bulges in the form of local thickenings of the plastic covering (8).

8. The doorstop as claimed in one of claims 1 to 7, characterized in that on its sides having the brake ramps (4) and the catch depressions (5) the door retaining rod (1) has a groove (24) running continuously in the longitudinal direction between bearing eye (6) and abutment (9), the profile of which groove complements the cap (14).

9. The doorstop as claimed in one of claims 1 to 8, characterized in that the abutment (9) is integrally formed with the door retaining rod, for example by a T-shaped design of the other end of the door retaining rod (1).

10. The doorstop as claimed in claim 9, characterized in that the abutment (9) is formed by ends of the two sides of the centrally divided metal core (7) bent at right-angles in opposite directions.

11. The doorstop as claimed in one of claims 1 to 10, characterized in that on its walls arranged perpendicular to the guide openings (25) the opening (13) has arches (18), the convexly rounded dome heads of which are arranged on a level with the guide openings (25), align with their inner wall and laterally guide the door retaining rod (1) perpendicular to the catch profile thereof.

12. The doorstop as claimed in one of claims 1 to 11, characterized in that the bearing eye (6) is extended parallel to the pivot axis by forming out the flat material section forming the metal core (7) parallel to the pivot axis.

13. The doorstop as claimed in one of claims 1 to 12, characterized in that the opening (13) is dimensioned so that the door retaining rod (1) can be introduced with its end having the bearing eye (6) foremost.

14. The doorstop as claimed in one of claims 1 to 13, characterized in that the closing cap (14) has a central bore (16) accessible from the cylindrical cavity (15) and further bores (17) arranged in a circle around the central bore (16), the wall thickness between the central bore (16) and the other bores (17) and between the latter, or between the central bore (16) and the outer surface of the brake and/or stop body (3) being approximately equal.

15. The doorstop as claimed in one of claims 1 to 14, characterized in that the outer surface of the cylindrical part (19) of the brake and/or stop body (3) is fluted in the direction of movement.

16. The doorstop as claimed in one of claims 2 to 15, characterized in that fixing apertures (21) are provided in the underside of the metal frames (11).

17. The doorstop as claimed in one of claims 1 to 16, characterized in that upwardly projecting cushions (22) of elastic material are integrally arranged in the upper end surface (20) of the housing (10) between the end of the metal frame (11) and the opening (13).

18. The doorstop as claimed in one of claims 1 to 17, characterized in that the profile of the opening (13) is shaped in such a way that the door retaining rod (1) is capable of swiveling by at least plus/minus 12.5°

about the axis that is formed by the brake and/or stop bodies (3) bearing pre-tensioned on opposite sides.