Seal of an opening
View Patent ↗A seal for an opening of a bore in a component, with a threaded screw, around a core shaft of which a helical screw thread is arranged. The screw engages in the bore and the thread creates a mating thread in a wall of the bore. The diameter of the bore is larger than the diameter of the core shaft. A helical channel, which is located between the core shaft of the screw and a wall of the bore, and which is delimited by the thread, is interrupted at a minimum of one point in a liquid-tight and/or gas-tight manner.
1. A seal of an opening of a bore provided in a component with a threaded screw, around a core shaft of which a helical screw thread is arranged, wherein the screw engages in the bore and the thread creates a mating thread in a wall of the bore, wherein a bore diameter of the bore is larger than a diameter of the core shaft, and wherein a helical channel, which is located between the core shaft of the screw and the wall of the bore, and which is delimited by the thread, is interrupted at a minimum of one point in a liquid-tight and/or gas-tight manner.
2. The seal according to claim 1 , wherein the bore comprises a radial constriction at a minimum of one point on a circumference, wherein a radial distance between the radial constriction and the wall opposing the bore is dimensioned in such a way that, after the screw has been screwed in, the radial constriction interrupts the helical channel in a liquid-tight and/or gas-tight manner.
3. The seal according to claim 2 , wherein the radial constriction is a flattened area.
4. The seal according to claim 2 , wherein the radial distance is equal to or less than the diameter of the core shaft of the screw.
5. The seal according to claim 1 , wherein a sealing strip, which extends along the bore, is arranged between the screw and the component, and the sealing strip bears in a liquid-tight and/or gas-tight manner against the wall of the bore on one side and against the core shaft and the thread of the screw on the other side.
6. The seal according to claim 5 , wherein the sealing strip is divided by the thread of the screw into a plurality of sealing strip sections in correspondence with a number of turns of the thread, wherein each sealing strip section rests in the helical channel against the wall of the bore on one side and against the core shaft and the thread of the screw on the other side in a liquid-tight and/or gas-tight manner.
7. The seal according to claim 5 , wherein the sealing strip is designed as a bead formed as an integral part of the component.
8. The seal according to claim 7 , wherein the bead projects radially inward from the bore wall and extends along an axis of the bore.
9. The seal according to claim 1 , wherein the helical channel is interrupted in a liquid-tight and/or gas-tight manner at several separate points distributed around a circumference of the bore.
10. A guide carriage of a linear guide with a support body, which is supported by rolling elements on a guide rail, and with plastic parts connected to the support body, which are provided with lubricating openings for lubrication of a rolling element channel holding the rolling elements, according to claim 1 , wherein the component forms the plastic parts and wherein the bore forms the lubrication openings.