A damper unit (40) and a frequency-tuned vibration damper assembly for a steering wheel (2) are disclosed An elastomeric damper element (70) of the damper unit has a plurality of mutually spaced, elongate ribs (72). An upper rib section (72b) is provided with a snap-lock protrusion (74). A lower rib section (72a) is configured to be brought into engagement with a horn plate (14) for transferring vibrations. Each rib (72) is provided with an upwardly open and downwardly closed inner cavity (80) located at least in part in the lower rib section (72a). Wall portions (84) of the ribs (72) are thereby elastically deformed by bending during the damping operation, resulting in an increased flexibility and lower tuning frequencies.
F16F 1/373 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by having a particular shape
F16F 1/376 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by having a particular shape having projections, studs, serrations or the like on at least one surface
F16F 1/377 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by having a particular shape having holes or openings
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
F16F 7/108 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
B62D 7/22 - Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
2.
A SPACER FOR A BATTERY PACK TOP COVER, A BATTERY PACK ASSEMBLY, AND A METHOD FOR MOUNTING BATTERY PACKS
A spacer is disclosed for limiting movements of a battery pack top cover towards a car body. The spacer comprises a rigid support bracket arranged to be attached to the top cover. An elastomeric member supported by the support bracket has first and second integrally formed parts. The first part is elastically deformed 5 mainly by bending, and the second part is deformed mainly by compression, together generating a non-linear repulsive force. A method for mounting a battery pack using such spacers is also disclosed.
A frequency-tuned vibration damper assembly includes a horn plate connected to a vibrating surface of a steering wheel structure at a first interface via a plurality of first elastic damper elements so as to be movable in relation to the vibrating surface. A mass supported by the plate is movable in relation to the plate on an opposite front side of the plate. Elastic buffer elements are provided at a second interface between the plate and the mass. The stiffness of the elastic buffer elements is selected such that they form second elastic damper elements which together with the first elastic damper elements and the mass form a frequency-tuned dampened mass-spring system having two damping interfaces and being frequency-tuned to vibrations of said vibrating surface.
B62D 7/22 - Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
4.
Damper unit, a damper assembly, methods of making a damper unit and a damper assembly
A damper unit for use in a vibration-reducing assembly for a steering wheel is disclosed. An elastomeric damper element is molded on an inner sleeve and includes a plurality of elastomeric ribs forming a radially outer engagement surface, and a plurality of elastomeric support studs, which are mutually spaced in a circumferential direction are flexible in all directions transverse to said axis. Methods for making a damper unit and a damper assembly are also disclosed.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B60Q 5/00 - Arrangement or adaptation of acoustic signal devices
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
B62D 7/22 - Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
F16F 3/087 - Units comprising several springs made of plastics or the like material
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
F16F 7/104 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted
F16F 7/108 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29K 21/00 - Use of unspecified rubbers as moulding material
A frequency-tuned vibration damper device and assembly which may be used in steering wheels for motor vehicles is provided. Elastomeric stiffening bridges or connectors, integrally formed in elastomeric damper bodies, are used to obtain different damping frequencies in different spatial directions (y, z). Stiffening in specific direction(s) (y) allows larger frequency differences to be achieved. Asymmetric elastomeric damper bodies are arranged to operate with a combination of compression-mode damping and shear-mode damping along a first axis (y), and dominantly with a shear-mode damping along a different, second direction (z).
A frequency-tuned vibration damper assembly (100) comprises a horn plate (20) connected to a vibrating surface (3) of a steering wheel structure at a first interface (I1) via a plurality of first elastic damper elements (30) so as to be movable in relation to the vibrating surface (3). A mass (10) supported by the plate (20) is movable in relation to the plate (20) on an opposite front side of the plate (20). Elastic buffer elements (40) are provided at a second interface (I2) between the plate (20) and the mass (10). The stiffness of the elastic buffer elements (40) is selected such that they form second elastic damper elements which together with the first elastic damper elements (30) and the mass (10) form a frequency-tuned dampened mass-spring system having two damping interfaces and being frequency-tuned to vibrations of said vibrating surface.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
B62D 7/22 - Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
7.
Damper unit, a damper assembly, methods of making a damper unit and a damper assembly
A damper unit for use in a vibration-reducing assembly for a steering wheel is disclosed. An elastomeric damper element is molded on an inner sleeve and includes a plurality of elastomeric ribs forming a radially outer engagement surface, and a plurality of elastomeric support studs, which are mutually spaced in a circumferential direction are flexible in all directions transverse to said axis. Methods for making a damper unit and a damper assembly are also disclosed.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B62D 7/22 - Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
B60Q 5/00 - Arrangement or adaptation of acoustic signal devices
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
F16F 7/108 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
F16F 3/087 - Units comprising several springs made of plastics or the like material
F16F 7/104 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted
F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29K 21/00 - Use of unspecified rubbers as moulding material
A damper unit for use in a vibration-reducing assembly for a steering wheel is disclosed. The damper unit includes a slider configured, upon horn activation, to slide on a guide shaft. A damper element made from an elastomeric material is arranged on a first part of the slider. A molded horn spring element is molded directly on a second part of the slider and is configured to exert a spring force on the slider. The damper unit provides a unitary structure providing both a vibration damping function and a horn spring function in one single assembly unit, reducing the number of components to assemble. A vibration-reducing damper assembly including one or more such damper units is also disclosed, as well as a method of making such a damper unit.
B62D 7/22 - Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
B60Q 5/00 - Arrangement or adaptation of acoustic signal devices
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
B60R 21/20 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
F16F 7/108 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
F16F 3/087 - Units comprising several springs made of plastics or the like material
F16F 7/104 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted
F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29K 21/00 - Use of unspecified rubbers as moulding material
There is disclosed a frequency-tuned vibration damper device and assembly which may be used in steering wheels for motor vehicles. Elastomeric stiffening bridges or connectors, integrally formed in elastomeric damper bodies, are used to obtain different damping frequencies in different spatial directions (y, z). Stiffening in specific direction(s) (y) allows larger frequency differences to be achieved. Asymmetric elastomeric damper bodies are arranged to operate with a combination of compression-mode damping and shear-mode damping along a first axis (y), and dominantly with a shear-mode damping along a different, second direction (z).
A frequency tuned damper including at least one elastic element, and a method for the assembly of such a damper are disclosed. The damper comprises a deflection limiting mechanism arranged to prevent excessive movements of the elastic element if the damper is subjected to large external transient forces. The at least one elastic element forms part of the deflection limiting mechanism.
A frequency tuned damper assembly for dampening vibrations of a vibrating structure comprises a mass element (20) being elastically supported at opposite ends in a console via two elastic damper elements (30). At least a first damper element forms part of a first snap-lock mechanism and is in a biased state by being elastically compressed in a longitudinal direction of the mass element (20) for maintaining the snap-lock mechanism in a locked state in which the mass element (20) is held in a locked mounted position, wherein the snap-lock mechanism for assembling the damper assembly is arranged to allow, by an elastic compression in the longitudinal direction of the first damper element, the mass element to be brought into its locked mounted position by a transverse movement in relation to the longitudinal direction. A method for assembling a frequency tuned damper assembly is also disclosed.
A frequency tuned damper (10) comprises two elastic damper elements (30) which are arranged to be connected to a vibrating structure, the vibrations of which are to be dampened, and at least one mass element (20) extending in a longitudinal direction of the damper (20) between two opposite ends thereof and being elastically supported at each one of said ends via an associated one of said two elastic damper elements (30). Each one of two intermediate connector elements (50) has a first engagement side which is in direct engagement with an associated one of said opposite ends of the mass element (20) by being press-fitted over the associated end along the longitudinal direction, and an opposite second engagement side which is in engagement with an associated one of said two elastic damper elements (30). An assembly including such a damper (10), as well as a method for making such a damper (10), are also disclosed.
A damper unit (40) for use in a vibration-reducing assembly (6) for a steering wheel (2) is disclosed. An elastomeric damper element (70) is molded on an inner sleeve (52) and presents a plurality of elastomeric ribs (77) forming a radially outer engagement surface (75), and a plurality of elastomeric support studs, which are mutually spaced in a circumferential direction are flexible in all directions transverse to said axis. Methods for making a damper unit and a damper assembly are also disclosed.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
14.
A DAMPER UNIT, A DAMPER ASSEMBLY, AND A METHOD FOR MAKING A DAMPER UNIT
A damper unit (40) for use in a vibration-reducing assembly (6) for a steering wheel is disclosed. The damper unit comprises a slider (50) configured, upon horn activation, to slide on a guide shaft (122). A damper element (70) made from an elastomeric material is arranged on a first part of the slider. A molded horn spring element (90) is molded directly on a second part of the slider and is configured to exert a spring force on the slider. The damper unit provides a unitary structure providing both a vibration damping function and a horn spring function in one single assembly unit, reducing the number of components to assemble. A vibration-reducing damper assembly including one or more such damper units is also disclosed, as well as a method of making such a damper unit.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B60R 21/203 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components in steering wheels or steering columns
15.
A FREQUENCY TUNED DAMPER AND A METHOD FOR USE IN MANUFACTURING SUCH A DAMPER
A frequency tuned damper including at least one elastic element, and a method for the assembly of such a damper are disclosed. The damper comprises a deflection limiting mechanism arranged to prevent excessive movements of the elastic element if the damper is subjected to large external transient forces. The at least one elastic element forms part of the deflection limiting mechanism.
The present disclosure relates to a frequency tuned damper having a vibration body (19) and at least one elastic element (11, 13, 15, 17) which connects the vibration body to a surface (21), the vibrations of which is to be dampened. The elastic element has a wide portion (29) and a narrow portion (31) disposed at different locations on an axis (39) which is substantially parallel with the normal of the surface. The wider portion has a cavity (41), and the wide and narrow portions are inter-connected by a transition portion (43). The part of the narrow portion that is closest to the transition portion fits inside the cavity, as seen in the direction of the axis, such that the narrow portion can be pushed at least partly into the cavity, thereby flexing the transition portion.
The present disclosure relates to a frequency tuned damper with an elastic element (7) adapted to connect a vibration body (5) to a surface (3). The elastic element has a wide portion (17) and a narrow portion (19) disposed at different locations along a longitudinal axis (23) which is substantially parallel with the normal of the surface when the damper is mounted, and has a first circumferential mounting groove (11) in the wide portion (17), for attaching the wide portion to the surface, and a second circumferential mounting groove (15) in the narrow portion (19), for attaching the narrow portion to the vibration body. The first circumferential mounting groove extends along an elongated path. This provides a damper that is capable of providing two different resonance frequencies in two perpendicular directions in the plane of the surface, and can easily be aligned in a desired direction.
The present disclosure relates to a frequency tuned damper having a vibration body in the form of a casing. The casing has first and second parts which partly enclose a connector part which extends through a connector opening in the casing, such that it can be attached to a surface, the vibrations of which is to be dampened. The casing and the connector part are interconnected by means of a resilient member in the casing interior. The first casing part is a can portion 31 and the second casing part is a lid portion 33. The can portion defines an internal space having a mounting opening at one end to receive the resilient member, and the lid portion is arranged to be attached to the can portion over the mounting opening in order to compress the resilient member into a compressed state in the internal space. The internal space substantially fully contains the resilient member in the compressed state. The lid portion may be produced as e.g. a punched sheet metal component which provides for an overall low cost damper.
F16F 5/00 - Liquid springs in which the liquid works as a spring by compression, e.g. combined with throttling actionCombinations of devices including liquid springs
F16F 7/108 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
The present disclosure relates to a frequency tuned damper having a vibration body (19) and at least one elastic element (11, 13, 15, 17) which connects the vibration body to a surface (21), the vibrations of which is to be dampened. The elastic element has a wide portion (29) and a narrow portion (31) disposed at different locations on an axis (39) which is substantially parallel with the normal of the surface. The wider portion has a cavity (41), and the wide and narrow portions are inter-connected by a transition portion (43). The part of the narrow portion that is closest to the transition portion fits inside the cavity, as seen in the direction of the axis, such that the narrow portion can be pushed at least partly into the cavity, thereby flexing the transition portion.
patents
