1. A self-closing device for sliding doors, said doors having at least one sliding leaf which is hung from an upper profile and configured to be displaced in a direction thereof, said device comprising:
a drive belt configured to be arranged along the upper profile and configured to be joined to the sliding leaf;
a closing pulley, provided with pre-loaded biasing means for imparting a rotational force on the closing pulley, the closing pulley rotating on a first rotation axis configured to be integral to the upper profile and driven by a first end of the drive belt,
wherein said pulley loads the biasing means during opening of the sliding leaf through rotation movement transmitted by the drive belt; and
wherein said closing pulley pushes the sliding leaf during closing of the sliding door through opposite rotation movement that transmits unloading of the biasing means; and;
a brake pulley, provided with stopping means, which is arranged on a second rotation axis configured to be integral to the upper profile and which engages a second end of the drive belt opposite to the first end, the rotation movement of the closing pulley and the brake pulley being connected by the drive belt, wherein said brake pulley disengages the stopping means during the opening of the sliding leaf; and stops the sliding leaf during the closing of the sliding door by a clutch of the stopping means;
a friction brake drum joined to a stop body by first fastening means; and
a brake shaft joined to the second rotation axis and producing friction against the brake drum during the closing of the sliding door.
2. The self-closing device for sliding doors according to claim 1, wherein the drive belt is joined to a connection skid integral to a traction clamp that fastens the sliding leaf, wherein said traction clamp comprises rolling means configured to be displaced on a rolling rail arranged along the upper profile.
3. The self-closing device for sliding doors according to claim 1, wherein the closing pulley further comprises:
a closing body, joined to the first rotation axis by a first bearing having an inner housing configured to house the biasing means; and
a closing cap, joined to the first rotation axis through a second bearing having second fastening means to the closing body to contain the biasing means.
4. The self-closing device for sliding doors according to claim 3, wherein the closing pulley comprises a pair of washers arranged between the biasing means, within the inner housing, wherein said washers contain axial efforts caused by said biasing means.
5. The self-closing device for sliding doors according to claim 3, wherein the closing body comprises a first toothed perimeter configured to engage with the drive belt.
6. The self-closing device for sliding doors according to claim 5, wherein the stop body comprises a second toothed perimeter configured to engage with the drive belt.
7. The self-closing device for sliding doors according to claim 3, wherein the biasing means comprise a leaf spring featuring an inner end joined to the first rotation axis and an outer end joined to the closing body, wherein said leaf spring is compressed during the opening of the sliding leaf and decompressed during the closing of the sliding door.
8. The self-closing device for sliding doors according to claim 3, wherein the brake pulley further comprises:
a third bearing joining the stop body to the second rotation axis and having an inner housing configured to house the stopping means; and
a brake cap having third fastening means to the stop body to contain the stopping means.
9. The self-closing device for sliding doors according to claim 8, wherein the stopping means comprise:
a unidirectional bearing joining the brake shaft to the second rotation axis, which is freely coupled to the brake drum, wherein said unidirectional bearing is configured to:
allow rotation movement of the brake shaft during the opening of the sliding leaf, so that said second rotation axis rotates at the same speed and in the same direction as the brake drum, preventing friction between the brake shaft and the brake drum; and
block the rotation movement of the brake shaft in the opposite direction during the closing of the sliding leaf, so that said second rotation axis does not move and produces friction against the brake drum.
10. The self-closing device for sliding doors according to claim 9, wherein the stopping means comprise a friction adjuster coupled to the brake drum, which is configured to control a level of friction between the brake shaft and the brake drum.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed:
1. A method of cleaning dishes comprising the steps of forming a substantially aqueous cleaning solution with a solid detergent composition that comprises a peroxygen compound, a water-soluble salt of a divalent transition metal selected from the group consisting of cobalt, iron, copper, ruthenium, and mixtures thereof, and a water-soluble ammonium salt, activating the peroxygen compound in the aqueous cleaning solution with a compound of the formula (I):
R1R2R3NCH2CNX(I)
that is carried in particulate form on an inorganic, silicon-containing carrier material, wherein R1 is C1 to C18 alkyl, alkenyl or aryl, R2 and R3 independently are C1 to C18 alkyl, alkenyl or aryl or together form a heterocycle including the N atom and optionally other hetero atoms, and X is a charge-equalizing anion, and contacting a dish surface in need of cleaning with a cleaning-effective amount of the cleaning solution.
2. The method of claim 1, wherein the silicon-containing inorganic carrier material has an inner surface of 10 m2g to 500 m2g.
3. The method of claim 2, wherein the silicon-containing inorganic carrier material has an inner surface of 100 m2g to 450 m2g.
4. The method of claim 2, wherein the silicon-containing inorganic carrier material is selected from the group consisting of silicates, silicas, silica gels and clays, and mixtures thereof.
5. The method of claim 1, wherein the particles of the compound of formula (I) and carrier material comprise 10 to 50 parts by weight of the silicon-containing carrier material and 50 to 90 parts by weight of the compound of formula (I).
6. The method of claim 1, wherein R2, R3, and the quaternary N atom form a morpholinium ring.
7. The method of claim 6, wherein R1 is C1 to C3 alkyl.
8. The method of claim 7, wherein R1 is methyl.
9. The method of claim 1, wherein X is selected from the group consisting of chloride, fluoride, iodide, bromide, nitrate, hydroxide, hexafluorophosphate, sulfate, hydrogen sulfate, metho- and ethosulfate, chlorate, perchlorate, formate, acetate, benzoate, citrate, and mixtures thereof.
10. The method of claim 1, wherein X is a halide or an anion of a carboxylic acid.
11. The method of claim 9, wherein X is sulfate, hydrogen sulfate, or methosulfate.
12. The method of claim 1, wherein the peroxygen compound activated is selected from the group consisting of organic peracids, hydrogen peroxide, perborate, percarbonate, and mixtures thereof.
13. The method of claim 1, wherein the detergent further comprises a water-soluble salt of a divalent transition metal selected from the group consisting of cobalt, iron, copper, ruthenium, and mixtures thereof, a water-soluble ammonium salt, and optionally a peroxygen-based oxidizing agent.
14. A solid detergent composition comprising a bleaching agent, 0.5% to 7% by weight of a compound that forms a peroxocarboxylic acid under perhydrolysis conditions, and 1% to 10% by weight of a compound of the formula (I):
R1R2R3NCH2CNX(I)
that is carried in particulate form on an inorganic, silicon-containing carrier material, wherein R1 is C1 to C18 alkyl, alkenyl or aryl, R2 and R3 independently are C1 to C18 alkyl, alkenyl or aryl or together form a heterocycle including the N atom and optionally other hetero atoms, and X is a charge-equalizing anion.
15. The compsition of claim 14, comprising 2% to 6% by weight of the compound of formula (I).
16. The composition of claim 14, further comprising 15% to 70% by weight of a water-soluble builder and 5% to 25% by weight of the bleaching agent, said bleaching agent being oxygen-based.
17. The composition of claim 16, comprising 20% to 60% by weight of the water-soluble builder component and 8% to 17% by weight of the oxygen-based bleaching agent.
18. The composition of claim 14, wherein the bleaching agent is a peroxygen compound selected from the group consisting of organic peracids, hydrogen peroxide, perborate, percarbonate, and mixtures thereof.
19. The composition of claim 14, comprising 0.5% to 7% by weight of a compounds that forms a peroxocarboxylic acid under perhydrolysis conditions.
20. The composition of claim 14, further comprising a water-soluble salt of a divalent transition metal selected from the group consisting of cobalt, iron, copper, ruthenium, and mixtures thereof, a water-soluble ammonium salt.
21. The composition of claim 14, further comprising 0.0025% to 0.5% weight of a bleach-catalyzing transition metal salt or complex.
22. The composition of claim 21, wherein the bleach-catalyzing transition metal salt or complex is a cobalt-, iron-, copper- or ruthenium-ammine complex.
23. The composition of claim 22, wherein the bleach-catalyzing transition metal salt or complex is Co(NH3)5ClCl2, Co(NH3)5NO2Cl2, or a mixture thereof.
24. The solid detergent composition of claim 14 in the form of a pressed shape.
25. The solid detergent composition of claim 24, wherein the pressed shape comprises two or more layers.
26. The solid detergent composition of claim 25, wherein the bleaching agent is in the form of a peroxygen compound and is contained in one or more layers, and the compound of formula I is contained in one or more layers that do not contain the peroxygen compound.
27. The solid detergent composition of claim 24, wherein the bleaching agent comprises a peroxygen compound and the bleaching agent and the compound of formula (I) are contained in one or more layers, and an enzyme is contained in one or more layers that do not contain the bleaching agent comprising a peroxygen compound or the compound of formula (I).
28. A method of cleaning dishes comprising the steps of forming a substantially aqueous cleaning solution with a solid detergent composition that comprises 0.5% to 7% by weight of a peroxygen compound selected from the group consisting of organic peracids, hydrogen peroxide, perborate, percarbonate, and mixtures thereof, activating the peroxygen compound in the aqueous cleaning solution with a compound of the formula (I):
R1R2R3NCH2CNX(I)
that is carried in particulate form on an inorganic, silicon-containing carrier material selected from the group consisting of silicates, silicas, silica gels and clays, and mixtures thereof having an inner surface of 10 m2g to 500 m2g, wherein R1 is C1 to C3 alkyl and R2, R3, and the quaternary N atom form a morpholinium ring, and X is a charge-equalizing anion, and contacting a dish surface in need of cleaning with a cleaning-effective amount of the cleaning solution.