A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism
A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.
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1. A damper incorporated in a power transmission mechanism for a hybrid vehicle, the damper comprising: a housing including a first cover and a second cover joined with each other, in which the housing is coupled to a drive plate and filled with lubricant oil; anda damper device arranged in the hous
1. A damper incorporated in a power transmission mechanism for a hybrid vehicle, the damper comprising: a housing including a first cover and a second cover joined with each other, in which the housing is coupled to a drive plate and filled with lubricant oil; anda damper device arranged in the housing, the damper device including:a central disc;a first friction member arranged at a peripheral portion of the central disc;a limiter plate arranged to face toward the first friction member;a first biasing member which pushes the limiter plate so that the central disc is arranged between the limiter plate and the housing;a hub having a shaft hole arranged at a center of the damper device and fitted to an output member;a first plate and a second plate arranged at opposite sides of the central disc and are immovably fixed to the central disc, such that the first plate, the second plate and the central disc form a torque input side portion;an output side disc, which is a torque output side portion, fixed to the hub and arranged between the first plate and the second plate;a plurality of damper springs accommodated in a spring accommodation hole formed between the first plate and the second plate, in which the damper springs elastically couple the torque input side portion and the output side disc;a second friction member arranged between the output side disc and the torque input side portion; anda second biasing member which biases the second friction member, wherein the second friction member suppresses relative rotation of the torque input side portion and the output side disc that is greater than or equal to a certain level with slip friction generated when the damper springs deform. 2. The damper according to claim 1, wherein the first plate and the second plate are contactable in a slipping manner with an inner circumference portion of the output side disc. 3. The damper according to claim 1, wherein the second friction member engages an engagement groove formed in at least one of the first plate and the second plate so as to be rotatable in a predetermined rotation angle range relative to at least one of the first plate and the second plate, and the second friction member generates a slip friction when a relative rotation angle between the torque input side portion and the output side disc becomes greater than or equal to a certain angle. 4. The damper according to claim 1, wherein: the hub includes a flange having first to third disc portions that are concentric and have different outer diameters, in which the second biasing member is attached to the first disc portion having the smallest diameter, a washer and the second friction member are attached to the second disc portion having an intermediate outer diameter, and the washer and the second friction member are arranged between the output side disc and the third disc portion in a state in which a biasing force of the second biasing member is applied; andan engagement piece arranged in the washer engages with an engagement hole of the output side disc. 5. A damper incorporated in a power transmission mechanism for a hybrid vehicle, the damper comprising: a housing including a first cover and a second cover joined with each other to define a space filled with lubricant oil, wherein the housing is coupled to a drive plate; anda damper device arranged in the housing, the damper device including:a central disc;a first friction member arranged at a peripheral portion of the central disc;a limiter plate arranged to face toward the first friction member;a first biasing member which pushes the limiter plate so that the central disc is arranged between the limiter plate and the housing;a hub having a shaft hole arranged at a center of the damper device and fitted to an output member;a first plate and a second plate, each having an outer portion, arranged on opposite sides of the central disc and wherein the central disc is immovably fixed to said outer portions, and wherein the first plate, the second plate and the central disc form a torque input side portion;an output side disc, which is a torque output side portion, fixed to the hub and arranged between the first plate and the second plate;a plurality of damper springs accommodated in a spring accommodation hole formed between the first plate and the second plate, in which the damper springs elastically couple the torque input side portion and the output side disc;a second friction member arranged between the output side disc and the torque input side portion; anda second biasing member which biases the second friction member, wherein the second friction member suppresses relative rotation of the torque input side portion and the output side disc that is greater than or equal to a certain level with slip friction generated when the damper springs deform. 6. The damper according to claim 5, wherein the first plate and the second plate are contactable in a slipping manner with an inner circumference portion of the output side disc. 7. The damper according to claim 5, wherein the second friction member engages an engagement groove formed in at least one of the first plate and the second plate so as to be rotatable in a predetermined rotation angle range relative to at least one of the first plate and the second plate, and the second friction member generates a slip friction when a relative rotation angle between the torque input side portion and the output side disc becomes greater than or equal to a certain angle. 8. The damper according to claim 5, wherein: the hub includes a flange having first to third disc portions that are concentric and have different outer diameters, in which the second biasing member is attached to the first disc portion having the smallest diameter, a washer and the second friction member are attached to the second disc portion having an intermediate outer diameter, and the washer and the second friction member are arranged between the output side disc and the third disc portion in a state in which a biasing force of the second biasing member is applied; andan engagement piece arranged in the washer engages with an engagement hole of the output side disc.
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이 특허에 인용된 특허 (43)
Reik Wolfgang (Bhl DEX) Elison Hans-Dieter (Offenburg DEX), Apparatus for counteracting torsional stresses.
Casse Pierre (Ermont FRX) Chasseguet Gustave (Taverny FRX), Torsional damper device comprising two coaxial parts cooperating with circumferentially acting springs.
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