Jounce bumper
The present disclosure includes a jounce bumper with a main body and an insert. The main body includes a first polymeric material. The insert is integral with the main body and includes a second polymeric material that is different from the first polymeric material. The insert further includes a first plate, a second plate, and a connecting lattice that connects the first plate and the second plate together. The first polymeric material of the main body is between the first plate and the second plate, and is within the connecting lattice.
1 . A jounce bumper comprising:
a main body including a first polymeric material; and
an insert integral with the main body, the insert including a second polymeric material that is different from the first polymeric material, the insert further including:
a first plate on top of the main body, the first plate defining first outer apertures outboard of an axial center of the jounce bumper;
a second plate defining second outer apertures outboard of the axial center, the second outer apertures aligned with the first outer apertures; and
a connecting lattice that connects the first plate and the second plate together;
wherein:
the first polymeric material of the main body is between the first plate and the second plate, and within the connecting lattice; and
the first plate including an outer top surface that is exposed and not covered by the first polymeric material, and the first polymeric material of the main body protrudes outward through the first outer apertures beyond the outer top surface of the first plate.
2 . The jounce bumper of claim 1 , further comprising a center aperture extending along a longitudinal axis of the jounce bumper and configured to receive a rod, the center aperture defined by each of the main body, the first plate, and the second plate.
3 . The jounce bumper of claim 1 , wherein the insert further includes at least one retention member configured to secure the jounce bumper at a mounting location.
4 . The jounce bumper of claim 1 , wherein:
the connecting lattice is a first connecting lattice; and
the insert further includes a third plate and a second connecting lattice that connects the second plate and the third plate together.
5 . The jounce bumper of claim 4 , wherein the insert further includes a fourth plate and a third connecting lattice that connects the third plate and the fourth plate together.
6 . The jounce bumper of claim 1 , wherein the connecting lattice extends about an outer perimeter of the insert.
7 . The jounce bumper of claim 1 , wherein the connecting lattice has one of a honeycomb shape, a triangle shape, and a parallelogram shape.
8 . The jounce bumper of claim 1 , wherein the connecting lattice defines a plurality of hexagonal apertures each one of which is between a first pair of opposing frustum-shaped apertures and a second pair of opposing frustum-shaped apertures.
9 . The jounce bumper of claim 1 , wherein the connecting lattice defines a plurality of triangular apertures arranged in alternating right side up and upside down orientations.
10 . The jounce bumper of claim 1 , wherein the connecting lattice defines a plurality of parallelogram-shaped apertures extending around an outer periphery of the insert.
11 . The jounce bumper of claim 1 , wherein the jounce bumper is configured to be mounted to a shock absorber for a vehicle.
12 . The jounce bumper of claim 1 , wherein the first polymeric material includes microcellular urethane, and the second polymeric material includes thermoplastic urethane.
13 . A jounce bumper comprising:
a main body including a first polymeric material; and
an insert integral with the main body, the insert including a second polymeric material that is more rigid than the first polymeric material, the insert including:
a first plate on top of the main body, a second plate, and a third plate each defining outer apertures spaced outward from a longitudinal axis of the jounce bumper, the outer apertures are aligned in a direction parallel to the longitudinal axis, the first polymeric material of the main body fills the outer apertures;
a first connecting lattice between the first plate and the second plate; and
a second connecting lattice between the second plate and the third plate;
wherein:
the first polymeric material of the main body is between the first plate and the second plate, between the second plate and the third plate, within the first connecting lattice, and within the second connecting lattice; and
the first plate including an outer top surface that is exposed and not covered by the first polymeric material, and the first polymeric material of the main body protrudes outward through the outer apertures of the first plate beyond the outer top surface of the first plate.
14 . The jounce bumper of claim 13 , wherein the first connecting lattice extends between an outer periphery of each of the first plate and the second plate, and the second connecting lattice extends between an outer periphery of each of the second plate and the third plate.
15 . The jounce bumper of claim 13 , wherein each one of the first connecting lattice and the second connecting lattice has one of a honeycomb shape, a triangle shape, and a parallelogram shape.
16 . The jounce bumper of claim 13 , wherein the first polymeric material includes microcellular urethane, and the second polymeric material includes thermoplastic urethane.
17 . The jounce bumper of claim 13 , further comprising a center aperture extending along the longitudinal axis of the jounce bumper, the center aperture defined by each of the main body, the first plate, the second plate, and the third plate.
18 . A jounce bumper comprising:
a main body including microcellular urethane; and
an insert integral with the main body, the insert including thermoplastic urethane and the following:
a first plate on top of the main body, a second plate, and a third plate each defining outer apertures spaced apart from a longitudinal axis of the jounce bumper, the outer apertures are aligned in a direction parallel to the longitudinal axis, the microcellular urethane of the main body fills the outer apertures;
a first connecting lattice extending between an outer periphery of both the first plate and the second plate, the first connecting lattice defining a plurality of first openings arranged about the insert, the plurality of first openings filled with the microcellular urethane of the main body; and
a second connecting lattice extending between an outer periphery of both the second plate and the third plate, the second connecting lattice defining a plurality of second openings arranged about the insert, the plurality of second openings filled with the microcellular urethane of the main body; and
a center aperture extending along the longitudinal axis of the jounce bumper, the center aperture defined by each of the main body, the first plate, the second plate, and the third plate;
wherein:
the microcellular urethane of the main body is between the first plate and the second plate and between the second plate and the third plate; and
the first plate including an outer top surface that is exposed and not covered by the microcellular urethane, and the microcellular urethane of the main body protrudes outward through the outer apertures defined by the first plate beyond the outer top surface of the first plate.