Brakes – Operators – Automatic
Patent
1995-05-08
1997-08-12
Ballato, Josie
Brakes
Operators
Automatic
267205, 267214, 89 143, 89 4401, F16F 132, F41A 388
Patent
active
056556322
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to the field of dampers for mechanical systems in motion.
The present invention relates particularly, but not exclusively, to the field of weapons systems provided with damper devices.
DISCUSSION OF THE PRIOR ART
Numerous damper structures have already been proposed.
For example, dampers have been proposed based on helical springs or the equivalent in the following documents: U.S. Pat. No. 4,895,061, U.S. Pat. No. 2,363,675, U.S. Pat. No. 2,273,878, FR-A-404 988, FR-A-135 971, U.S. Pat. No. 1,480,557, U.S. Pat. No. 1,483,129, U.S. Pat. No. 3,387,538, and U.S. Pat. No. 2,790,357.
Dampers have been proposed based on the flow of particulate substances or the equivalent in the following documents: U.S. Pat. No. 3,105,411, U.S. Pat. No. 4,173,130, U.S. Pat. No. 3,417,660, U.S. Pat. No. 3,521,270.
Proposals have been made for dampers based on hydraulic or pneumatic systems in the following documents: FR-A-2 644 571, FR-A-2 588 370, U.S. Pat. No. 4,388,855, and U.S. Pat. No. 1,845,218.
Proposals have been made for dampers based on honeycombs or the equivalent in the following documents: FR-A-2 653 870, U.S. Pat. No. 4,227,593, U.S. Pat. No. 3,130,819, U.S. Pat. No. 3,552,525, U.S. Pat. No. 3,265,163, U.S. Pat. No. 3,082,846, and U.S. Pat. No. 3,010,040.
Proposals have been made for dampers based on deformable hollow beads in the following documents: FR-A-2 653 870, U.S. Pat. No. 3,923,292, and U.S. Pat. No. 3,637,051.
Proposals have also been made for dampers based on material deformation, cutting, or friction systems in the following documents: FR-A-2 241 726, U.S. Pat. No. 3,501,997, and U.S. Pat. No. 3,424,448.
Proposals have also been made in document GB-A-907 408 for a damper device comprising two helical springs of different diameters whose respective turns are interspersed between one another.
Furthermore, proposals have been made in document FR-A-2 333 I65 for a damper device comprising:
two assemblies suitable for guided relative displacement, one being tied to a reference and the other being movable relative to said reference;
means defining a driving connection between said other assembly and the system to be damped;
a shoe suitable for resting against a first one of the assemblies; and
control means formed by sloping links or spring blades interposed between the shoe and the second one of the assemblies in order to rise in the event of a shock on the system to be damped so as to exert a force on the shoe tending to urge said shoe against the first assembly during an active stage of damper device loading corresponding to a first direction of relative displacement between the two assemblies, and to reduce the force exerted by the shoe during a passive stage of damper device loading corresponding to a second direction of relative displacement between the two assemblies.
The device described in that document FR-A-2 333 165 does not give full satisfaction. In particular, it suffers from the risk of the shoe jamming against the first assembly.
SUMMARY OF THE INVENTION
The object of the present invention is to improve existing systems.
A particular object of the present invention is to propose a reversible damper system, i.e. a damper system which does not suffer irreversible damage in use, and which can consequently be reused several times over.
This object is achieved according to the present invention by means of a damper device of the type described in document FR-A-2 333 165, comprising:
two assemblies suitable for guided relative displacement, one being tied to a reference and the other being movable relative to said reference;
means defining a driving connection between said other assembly and the system to be damped;
a shoe suitable for resting against a first one of the assemblies; and
control means including resilient means interposed between the shoe and the second one of the assemblies, said control means being adapted to exert a force on the shoe tending to urge said shoe against the first assembly during an active stage of damper devic
REFERENCES:
patent: 2539275 (1951-01-01), Sahlin et al.
patent: 3783738 (1974-01-01), Pelat
patent: 4928802 (1990-05-01), Weiss et al.
Patent Abstracts of Japan; vol. 016, No. 193 (P1349) May 11, 1992 & JP A,04 027 897 (Toshiba Corp) Jan. 30, 1992.
Ballato Josie
Etienne Lacroix - Tous Artifices S.A.
LandOfFree
Damper device for a mechanical system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Damper device for a mechanical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Damper device for a mechanical system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-154786