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US 9,809,918 B2Granted
Damper
AssigneeSuspa GmbH
InventorsThomas Peuker, Dieter Mayer, Michael Weder
Life of this patent
Estimating the term…
Abstract
Damper, in particular for washing machines with a spin cycle, with a housing having a central longitudinal axis and at least partially encompassing a housing interior by housing walls, a plunger displaceable in the housing along the central longitudinal axis, guided out of the housing and having at least one friction lining recess, fastening elements, arranged on open ends of the housing and the plunger, and at least one friction lining, arranged in the at least one friction lining recess and in frictional contact with opposite housing walls.
Claims7
A damper comprising:
- a) a housing (2;
- 2d;
- 2e;
- 2g) having a central longitudinal axis (3), at least partially encompassing a housing interior (21) by housing walls (24, 25),
- b) a plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) displaceable in the housing (2;
- 2d;
- 2e;
- 2g) along the central longitudinal axis (3), guided out of the housing (2;
- 2d;
- 2e;
- 2g) and having at least one friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g), wherein the friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g) fully penetrates the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) and wherein the friction lining recess (14;
- 14b) is laterally limited by longitudinal sides (16b) being constructed as indented or meandering,
- c) fastening elements (7, 10), arranged at free ends (5, 9) of the housing (2;
- 2d;
- 2e;
- 2g) and the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g), and
- d) at least one friction lining (17;
- 17a;
- 17g), arranged in the at least one friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g), wherein said friction lining (17;
- 17a;
- 17g) is unitary and formed of one friction material,
- e) wherein the friction lining (17;
- 17a;
- 17g) has a thickness which is greater than a width of an intermediate channel of the housing (2;
- 2d;
- 2e;
- 2g), such that the friction lining (17;
- 17a;
- 17g) is permanently biased and in friction contact with said housing walls (25), and
- f) wherein when the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) is inserted or pulled-out of the housing (2;
- 2d;
- 2e;
- 2g), the friction lining (17;
- 17a;
- 17g) rubs against the friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g),
- g) wherein the friction lining recess has an axial length (LA) being larger than an axial length (LR) of the friction lining (17;
- 17a;
- 17g), and
- h) wherein attenuation characteristics of the damper are defined by at least one of the difference in the axial length (LR) of the friction lining and the axial length (LA) of the friction lining recess, the shape of the friction lining recess and the friction lining, and the thickness of the friction lining.
68 more elements
A damper comprising:
- a) a housing (2;
- 2d;
- 2e;
- 2g) having a central longitudinal axis (3), at least partially encompassing a housing interior (21) by housing walls (24, 25),
- b) a plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) displaceable in the housing (2;
- 2d;
- 2e;
- 2g) along the central longitudinal axis (3), guided out of the housing (2;
- 2d;
- 2e;
- 2g) and having at least one friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g), wherein the friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g) fully penetrates the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) and wherein the friction lining recess (14b;
- 14c) is limited by end faces (15;
- 15c) located at axial ends of longitudinal sides (16;
- 16b), each longitudinal side (16;
- 16b) connecting said end faces (15, 15c), wherein the longitudinal sides (16;
- 16b) are constructed as jagged,
- c) fastening elements (7, 10), arranged at free ends (5, 9) of the housing (2;
- 2d;
- 2e;
- 2g) and the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g), and
- d) at least one friction lining (17;
- 17a;
- 17g), arranged in the at least one friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g), wherein said friction lining (17;
- 17a;
- 17g) is unitary and formed of one friction material,
- e) wherein the friction lining (17;
- 17a;
- 17g) has a thickness which is greater than a width of an intermediate channel of the housing (2;
- 2d;
- 2e;
- 2g), such that the friction lining (17;
- 17a;
- 17g) is permanently biased and in friction contact with said housing walls (25),
- f) wherein when the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) is inserted or pulled-out of the housing (2;
- 2d;
- 2e;
- 2g), the friction lining (17;
- 17a;
- 17g) rubs against the friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g),
- g) wherein the friction lining recess has an axial length (LA) being larger than an axial length (LR) of the friction lining (17;
- 17a;
- 17g), and
- h) wherein attenuation characteristics of the damper are defined by at least one of the difference in the axial length (LR) of the friction lining and the axial length (LA) of the friction lining recess, the shape of the friction lining recess and the friction lining, and the thickness of the friction lining.
72 more elements
A damper comprising:
- a) a housing (2;
- 2d;
- 2e;
- 2g) having a central longitudinal axis (3), at least partially encompassing a housing interior (21) by housing walls (24, 25),
- b) a plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) displaceable in the housing (2;
- 2d;
- 2e;
- 2g) along the central longitudinal axis (3), guided out of the housing (2;
- 2d;
- 2e;
- 2g) and having at least one friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g), wherein the friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g) fully penetrates the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) and wherein the friction lining recess (14;
- 14b) is laterally limited by longitudinal sides (16;
- 16b) having points (30), said points (30) pressing into the friction lining (17) from the side,
- c) fastening elements (7, 10), arranged at free ends (5, 9) of the housing (2;
- 2d;
- 2e;
- 2g) and the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g), and
- d) at least one friction lining (17;
- 17a;
- 17g), arranged in the at least one friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g), wherein said friction lining (17;
- 17a;
- 17g) is unitary and formed of one friction material,
- e) wherein the friction lining (17;
- 17a;
- 17g) has a thickness which is greater than a width of an intermediate channel of the housing (2;
- 2d;
- 2e;
- 2g), such that the friction lining (17;
- 17a;
- 17g) is permanently biased and in friction contact with said housing walls (25),
- f) wherein when the plunger (4;
- 4b;
- 4c;
- 4f;
- 4g) is inserted or pulled-out of the housing (2;
- 2d;
- 2e;
- 2g), the friction lining (17;
- 17a;
- 17g) rubs against the friction lining recess (14;
- 14b;
- 14c;
- 14f;
- 14g),
- g) wherein the friction lining recess has an axial length (LA) being larger than an axial length (LR) of the friction lining (17;
- 17a;
- 17g), and
- h) wherein attenuation characteristics of the damper are defined by at least one of the difference in the axial length (LR) of the friction lining and the axial length (LA) of the friction lining recess, the shape of the friction lining recess and the friction lining, and the thickness of the friction lining.
69 more elements
Dependencies are inferred from the claim text.