Abstract: A soundproof cover which covers a target object is provided with: a sound absorbing sheet which is formed in a planar shape by means of a sound absorbing material and which covers the surface of the target object; and a reinforcing member which is disposed in a position engaging with engaged portions of the target object, and which positions the sound absorbing sheet with respect to the target object with at least a portion of the sound absorbing sheet exposed. The reinforcing member is provided with: a first reinforcing portion, which is an elongate member and which is disposed in a position engaging with a first engaged portion of the target object; and second reinforcing portions, which are elongate members and which are disposed in different positions to the first reinforcing portion.

Abstract: A soundproof member is mounted on a structure including a rotation body, covers at least a part of outer peripheral surfaces of the structure, includes an integral article of an elastic member, and has eccentrically located portions having at least a greater thickness or a greater density than the other portions. The eccentrically located portions may be thick wall portions having a greater thickness than the other portions. When the elastic member has a base material including polymer and a magnetic filler included in a state of being oriented in the base material, highly filled portions in which a content of the magnetic filler is greater than that of the other portions can be set as the eccentrically located portions.

Abstract: This soundproof member is mounted to a drive device provided with a rotating body and comprises: an elastic member having a base material consisting of a resin or elastomer, the elastic member also having a magnetic filler contained in the base material so as to be interconnected and oriented in one direction; and a mass disposed on a surface with the elastic member provided therebetween, the surface extending in the direction of the rotation axis of the rotating body, the mass being supported by the elastic member.

Abstract: A soundproof member is mounted on a structure including a rotation body, covers at least a part of outer peripheral surfaces of the structure, includes an integral article of an elastic member, and has eccentrically located portions having at least a greater thickness or a greater density than the other portions. The eccentrically located portions may be thick wall portions having a greater thickness than the other portions. When the elastic member has a base material including polymer and a magnetic filler included in a state of being oriented in the base material, highly filled portions in which a content of the magnetic filler is greater than that of the other portions can be set as the eccentrically located portions.

Abstract: A soundproof cover is mounted to a first gear box of a power seat motor unit that is attached to a frame member of a seat and that has a motor and a gear box. In the first gear box, the axial direction of the motor is defined as the X direction, the direction of attachment to the frame member, which is one of two directions that are orthogonal to the X direction, is defined as the Y direction, and the remaining direction is defined as the Z direction. Then, the soundproof cover has: a foam disposed on at least an X-Z surface of the first gear box; a cover member disposed on the outer side of the foam; and a mass body interposed between the foam and the cover member and disposed at a position corresponding to at least the X-Z surface of the first gear box in contact with the foam.

Abstract: This soundproof member is mounted to a drive device provided with a rotating body and comprises: an elastic member having a base material consisting of a resin or elastomer, the elastic member also having a magnetic filler contained in the base material so as to be interconnected and oriented in one direction; and a mass disposed on a surface with the elastic member provided therebetween, the surface extending in the direction of the rotation axis of the rotating body, the mass being supported by the elastic member.

Abstract: A soundproof cover is mounted to a first gear box of a power seat motor unit that is attached to a frame member of a seat and that has a motor and a gear box. In the first gear box, the axial direction of the motor is defined as the X direction, the direction of attachment to the frame member, which is one of two directions that are orthogonal to the X direction, is defined as the Y direction, and the remaining direction is defined as the Z direction. Then, the soundproof cover has: a foam disposed on at least an X-Z surface of the first gear box; a cover member disposed on the outer side of the foam; and a mass body interposed between the foam and the cover member and disposed at a position corresponding to at least the X-Z surface of the first gear box in contact with the foam.

Abstract: A sound absorbing cover is made of foam containing magnetic filler and is integrally molded in a three-dimensional shape so as to cover at least a part of a mating member that is a noise source. The sound absorbing cover includes side walls that cover side surfaces of the mating member and a bottom wall that covers a bottom surface of the mating member that intersects with the side surfaces of the mating member. The magnetic filler is oriented in a thickness direction of each of the side walls and the bottom wall. A sound absorbing assembly includes the sound absorbing cover and a fixing cover that is attached to the outer peripheral surface of the sound absorbing cover and that fixes, to a base, the sound absorbing cover and the mating member that is a noise source covered by the sound absorbing cover.

Abstract: A vibrating member attachment structure includes: a sound insulation layer made of elastomer and including an accommodating portion that defines an accommodating space in which a vibrating member is accommodated, and a folded-back portion having a hem portion connecting to the accommodating portion, a contact portion placed so as to face the hem portion and contacting a mating member, a joint portion connecting the hem portion and the contact portion, and an insertion space defined by the hem portion, the contact portion, and the joint portion; a support member having higher rigidity than the sound insulation layer and including a sealing portion that seals an opening of the accommodating space, and an insertion portion that connects to the sealing portion and that is inserted in the insertion space; and an attachment member and including a shaft portion and a deformation suppressing portion.

Abstract: A sound absorbing cover is made of foam containing magnetic filler and is integrally molded in a three-dimensional shape so as to cover at least a part of a mating member that is a noise source. The sound absorbing cover includes side walls that cover side surfaces of the mating member and a bottom wall that covers a bottom surface of the mating member that intersects with the side surfaces of the mating member. The magnetic filler is oriented in a thickness direction of each of the side walls and the bottom wall. A sound absorbing assembly includes the sound absorbing cover and a fixing cover that is attached to the outer peripheral surface of the sound absorbing cover and that fixes, to a base, the sound absorbing cover and the mating member that is a noise source covered by the sound absorbing cover.

Abstract: A vibrating member attachment structure includes: a sound insulation layer made of elastomer and including an accommodating portion that defines an accommodating space in which a vibrating member is accommodated, and a folded-back portion having a hem portion connecting to the accommodating portion, a contact portion placed so as to face the hem portion and contacting a mating member, a joint portion connecting the hem portion and the contact portion, and an insertion space defined by the hem portion, the contact portion, and the joint portion; a support member having higher rigidity than the sound insulation layer and including a sealing portion that seals an opening of the accommodating space, and an insertion portion that connects to the sealing portion and that is inserted in the insertion space; and an attachment member and including a shaft portion and a deformation suppressing portion.