A member mount has an inner tubular member, an outer tubular member, and a rubber elastic body connecting the tubular members. An inner peripheral resin layer having an inner hole as a positional hole is layered on an internal peripheral surface of the inner tubular member and an outer peripheral re
A member mount has an inner tubular member, an outer tubular member, and a rubber elastic body connecting the tubular members. An inner peripheral resin layer having an inner hole as a positional hole is layered on an internal peripheral surface of the inner tubular member and an outer peripheral resin layer is layered on an outer peripheral surface thereof. The resin layers are connected to each other in resin connection portions in connection holes passing through the inner tubular member in four positions in the circumferential direction at equal distances.
대표청구항▼
1. A member mount elastically connecting a vehicle body and a suspension member and isolating vibration, the member mount comprising: a rigid inner tubular member, the rigid inner tubular member being fixed to a vehicle body in a positioned condition by inserting therein a positioning member project
1. A member mount elastically connecting a vehicle body and a suspension member and isolating vibration, the member mount comprising: a rigid inner tubular member, the rigid inner tubular member being fixed to a vehicle body in a positioned condition by inserting therein a positioning member projecting from the vehicle body;a rigid outer tubular member surrounding the rigid inner tubular member in a position radially spaced therefrom, the rigid outer tubular member being fixed to a suspension member; anda rubber elastic body radially connecting the rigid inner tubular member and the rigid outer tubular member,whereina tubular inner peripheral resin layer is provided on an inner peripheral surface of the rigid inner tubular member, the tubular inner peripheral resin layer allowing the positioning member to be inserted into an inner hole provided therein for positioning the rigid inner tubular member,a tubular outer peripheral resin layer is provided on an outer peripheral surface of the rigid inner tubular member, the tubular outer peripheral resin layer projecting radially outward from the outer peripheral surface and increasing spring hardness in a direction perpendicular to an axis of the rubber elastic body,the tubular inner peripheral resin layer and the tubular outer peripheral resin layer are connected to each other by resin connection portions extending though connection holes passing through the rigid inner tubular member in at least four positions circumferentially spaced at equal distances along the rigid inner tubular member,wherein the positioning member has a circular outer peripheral shape and the tubular inner peripheral resin layer has a circular inner hole having a hole diameter that corresponds to an outer diameter of the positioning member and fitted to the positioning member along an entire periphery, andwherein the connection holes and resin connection portions are each provided in an axially central portion of the rigid inner tubular member having an axially straight shape. 2. The member mount according to claim 1, wherein the tubular outer peripheral resin layer is provided closer to one end in the axial direction of the rigid inner tubular member having an axially straight shape. 3. A member mount elastically connecting a vehicle body and a suspension member and isolating vibration, the member mount comprising: a rigid inner tubular member, the rigid inner tubular member being fixed to a vehicle body in a positioned condition by inserting therein a positioning member projecting from the vehicle body;a rigid outer tubular member surrounding the rigid inner tubular member in a position radially spaced therefrom, the rigid outer tubular member being fixed to a suspension member; anda rubber elastic body radially connecting the rigid inner tubular member and the rigid outer tubular member,whereina tubular inner peripheral resin layer is provided on an inner peripheral surface of the rigid inner tubular member, the tubular inner peripheral resin layer allowing the positioning member to be inserted into an inner hole provided therein for positioning the rigid inner tubular member,a tubular outer peripheral resin layer is provided on an outer peripheral surface of the rigid inner tubular member, the tubular outer peripheral resin layer projecting radially outward from the outer peripheral surface and increasing spring hardness in a direction perpendicular to an axis of the rubber elastic body,the tubular inner peripheral resin layer and the tubular outer peripheral resin layer are connected to each other by resin connection portions extending though connection holes passing through the rigid inner tubular member in at least four positions circumferentially spaced at equal distances along the rigid inner tubular member, wherein the positioning member has a circular outer peripheral shape and the tubular inner peripheral resin layer has an elongated inner hole having a short diameter that corresponds to an outer diameter of the positioning member and a long diameter greater than the outer diameter of the positioning member, andwherein the connection holes and resin connection portions are each provided in an axially central portion of the rigid inner tubular member having an axially straight shape. 4. The member mount according to claim 3, wherein the tubular outer peripheral resin layer is provided closer to one end in the axial direction of the rigid inner tubular member having an axially straight shape. 5. An assembly structure of member mounts to a vehicle body in two different positions in a condition maintaining a relative positional relationship to each other, each of the member mounts elastically connecting the vehicle body and a suspension member and isolating vibration, each of the member mounts comprising a rigid inner tubular member, a rigid outer tubular member surrounding the rigid inner tubular member in a position radially spaced therefrom, and a rubber elastic body radially connecting the rigid inner tubular member and the rigid outer tubular member, the rigid outer tubular member being fixed to a suspension member, the rigid inner tubular member being fixed to the vehicle body in a positioned condition by inserting therein a positioning member projecting from the vehicle body, the structure comprising: an inner hole inside the rigid inner tubular member of a first member mount provided as a circular reference hole having a hole diameter that corresponds to an outer diameter of a positioning member so as to be fitted thereto along an entire periphery, the positioning member having a circular outer peripheral shape and projecting from the vehicle body, the reference hole being fitted to a positioning member along the entire periphery so as to position the first member mount in two orthogonal directions in a direction perpendicular to an axis; andan inner hole inside the rigid inner tubular member of a second member mount provided as an elongated sub-reference hole having a short diameter that corresponds to an outer diameter of a positioning member and a long diameter greater than the outer diameter of the positioning member, the sub-reference hole being fitted to a positioning member in the short diameter direction so as to position the second member mount in one direction perpendicular to the axis and in an direction orthogonal to an alignment direction of the first member mount, the sub-reference hole absorbing in the long diameter direction a positional error relative to the positioning member,whereinin each of the member mounts, a tubular inner peripheral resin layer is provided on an inner peripheral surface of the rigid inner tubular member, the tubular inner peripheral resin layer allowing the positioning member to be inserted into the inner hole provided therein for positioning the rigid inner tubular member; a tubular outer peripheral resin layer is provided on an outer peripheral surface of the rigid inner tubular member, the tubular outer peripheral resin layer projecting radially outward from the outer peripheral surface and increasing spring hardness in the direction perpendicular to the axis of the rubber elastic body; and the tubular inner peripheral resin layer and the tubular outer peripheral resin layer are connected to each other by resin connection portions extending through connection holes passing through the rigid inner tubular member in at least four positions circumferentially spaced at equal distances along the rigid inner tubular member;in the first member mount, the rigid inner tubular member has a tubular shape having an inner diameter greater than the outer diameter of the positioning member, and the tubular inner peripheral resin layer is provided on the inner peripheral surface of the rigid inner tubular member, the tubular inner peripheral resin layer having a circular inner hole that has a hole diameter corresponding to the outer diameter of the positioning member and that is fitted to the positioning member along the entire periphery, the inner hole being provided as the reference hole, andin the second member mount, the rigid inner tubular member has a tubular shape having the same dimensions as the rigid inner tubular member of the first member mount, and the tubular inner peripheral resin layer is provided on the inner peripheral surface of the rigid inner tubular member, the tubular inner peripheral resin layer having an elongated inner hole having a short diameter that corresponds to an outer diameter of the positioning member and a long diameter greater than the outer diameter of the positioning member, the inner hole being provided as the sub-reference hole.
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이 특허에 인용된 특허 (3)
Mark Allan Bergdahl ; Isiah Charles White, De-coupling mechanism for separating axial radial spring rates in an elastomeric mounting/isolation system.
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