Vibration damping device having stopper rubbers
A vibration damping device having stopper rubbers including: a first and second mounting members; an outer bracket attached to the second mounting member; and a plurality of stopper rubbers attached to the outer bracket and providing a stopper mechanism for limiting an amount of relative displacement between the first and second mounting members by means of contact between a first mounting member side and the outer bracket via the stopper rubbers. The stopper rubbers include respective mating recesses and the mating recesses open toward a same direction. The stopper rubbers are integrally connected by at least one rubber connecting portion. The stopper rubbers are attached to the outer bracket with the rubber connecting portion being deformed so that the mating recesses are arranged so as to open toward different directions and are mated with the outer bracket.
1. A vibration damping device comprising:
a first mounting member;
a second mounting member;
a main rubber elastic body elastically connecting the first and second mounting members;
an outer bracket attached to the second mounting member; and
a plurality of stopper rubbers attached to the outer bracket and providing a stopper mechanism for limiting an amount of relative displacement between the first and second mounting members by contact between a first mounting member side and the outer bracket via the stopper rubbers, wherein
the stopper rubbers include respective mating recesses that open toward a same direction,
the stopper rubbers are integrally connected by at least one rubber connecting portion, and
the stopper rubbers are attached to the outer bracket with the rubber connecting portion being deformed so that the mating recesses are arranged so as to open toward different directions and are mated with the outer bracket.
2. The vibration damping device according to claim 1 , wherein the second mounting member has a tubular shape, wherein the outer bracket includes a mating tubular portion fitted externally onto the second mounting member, and wherein the mating recesses of the stopper rubbers are mated with an outside peripheral face of the mating tubular portion so that the stopper rubbers are attached to the outer bracket.
3. The vibration damping device according to claim 1 , wherein the stopper rubbers comprise a pair of the stopper rubbers, and the pair of the stopper rubbers are attached to the outer bracket in opposition so that the mating recesses open so as to face each other.
4. The vibration damping device according to claim 1 , wherein a stopper protrusion is formed projecting from the outer bracket, and the mating recesses of the stopper rubbers are mated with the stopper protrusion.
5. The vibration damping device according to claim 1 , wherein with the stopper rubbers attached to the outer bracket, the rubber connecting portion undergoes tensile deformation so that the stopper rubbers are pressed against the outer bracket due to elasticity of the rubber connecting portion.
6. The vibration damping device according to claim 5 , wherein with the stopper rubbers in isolation prior to attachment to the outer bracket, the rubber connecting portion has slack.
7. The vibration damping device according to claim 1 , wherein the at least one rubber connecting portion comprises a plurality of rubber connecting portions, and the rubber connecting portions are spaced away from each other in parallel between the stopper rubbers.
8. The vibration damping device according to claim 1 , wherein the stopper rubbers are formed of rubber only.
9. The vibration damping device according to claim 7 , wherein each of the plurality of rubber connecting portions include first and second ends that define the integral connection with the stopper rubbers at respective bottom walls of the stopper rubbers.
10. The vibration damping device according to claim 1 , wherein the stopper rubbers comprise a pair of the stopper rubbers, and the pair of the stopper rubbers are attached to the outer bracket in opposition so that the mating recesses open so as to face each other,
the rubber connecting portion includes first and second ends that define the integral connection with the pair of stopper rubbers at respective bottom walls of the stopper rubbers, and
with the pair of the stopper rubbers attached to the outer bracket, the rubber connecting portion undergoes tensile deformation so that the stopper rubbers are pressed against the outer bracket due to elasticity of the rubber connecting portion.
11. A vibration damping device comprising:
a first mounting member;
a second mounting member;
a main elastic body elastically connecting the first and second mounting members;
an outer bracket attached to the second mounting member; and
a plurality of elastic stoppers attached to the outer bracket and providing a stopper mechanism for limiting an amount of relative displacement between the first and second mounting members by contact between a first mounting member side and the outer bracket via the elastic stoppers, wherein
the elastic stoppers include respective mating recesses that open toward a same direction,
the elastic stoppers are integrally connected by at least one elastic connecting portion, and
the elastic stoppers are attached to the outer bracket with the elastic connecting portion being deformed so that the mating recesses are arranged so as to open toward different directions and are mated with the outer bracket.