US 9,809,918 B2
Damper
Thomas Peuker, Ammerthal (DE); Dieter Mayer, Sulzbach-Rosenberg (DE); and Michael Weder, Nümberg (DE)
Assigned to SUSPA GMBH, Altdorf (DE)
Filed by SUSPA GMBH, Altdorf (DE)
Filed on Oct. 30, 2015, as Appl. No. 14/927,899.
Application 14/927,899 is a continuation of application No. 14/143,732, filed on Dec. 30, 2013, granted, now 9,222,537.
Application 14/143,732 is a continuation of application No. 11/756,094, filed on May 31, 2007, granted, now 8,640,837, issued on Feb. 4, 2014.
Claims priority of application No. 10 2006 025 749 (DE), filed on May 31, 2006.
Prior Publication US 2016/0053424 A1, Feb. 25, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. F16F 11/00 (2006.01); D06F 37/20 (2006.01); F16F 7/08 (2006.01); F16F 7/09 (2006.01); F16F 9/32 (2006.01)
CPC D06F 37/20 (2013.01) [F16F 7/08 (2013.01); F16F 7/09 (2013.01); F16F 9/3235 (2013.01)] 7 Claims
OG exemplary drawing
 
1. 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.