Elastomeric shock and vibration isolator

Claim 2

An elastomeric shock and vibration isolator having a ring shaped rubber member (6) in which a chamber is formed, comprising one or more tightening rings (13) fitted to an outer circumference of said ring shaped rubber member (6), characterised in that said isolator further comprises adjusting means (14, 15, 18) for adjusting the tightening force of said tightening ring (13) against said ring shaped rubber member (6).

Claim 3

An elastomeric shock and vibration isolator according to Claim 1, wherein two liquid chambers (B, C) are divided in the space (100) within the ring shaped rubber member (6) by a divider (8) having an orifice (7), the chambers being connected to each other through said orifice, and a sealed gas chamber (A) is adjacent to one of said two liquid chambers and is separated therefrom by a flexible diaphram (9), said two liquid chambers (B, C) being filled with liquid.

Claim 4

An elastomeric shock and vibration isolator according to Claim 1 or Claim 2, wherein said tightening ring (13) is made of synthetic resin or light metal including aluminium.

Claim 5

An elastomeric shock and vibration isolator according to any one of Claims 1 to 3, wherein the tightening ring (13) is formed corresponding to said ring shaped rubber member (6) and said adjusting means (14, 15 18) are provided to adjust the tightening force of said tightening ring.

Claim 6

An elastomeric shock and vibration isolator according to any one of Claims 1 to 3, wherein said tightening ring (13) comprises two semicircular rings corresponding to said ring shaped rubber member (6) and said adjusting means (14, 15, 18) connects both ends of said two semicircular rings to each other to adjust the tightening force of said tightening ring.

Claim 7

An elastomeric shock and vibration isolator having a chamber (A) filled with gas, comprising a lower plate (2) on which a mounting bolt (1) is secured, an upper plate (5) on which at least one assembly bolt (3) is secured, a ring shaped rubber member (6) arranged between said lower plate (2) and said upper plate (5), a tightening ring (13) fitted on a circumference of said ring shaped rubber member (6) characterised in that said isolator further comprises adjusting means (14, 15 18) for adjusting tightening force of said tightening ring (13) against said ring shaped rubber member (6).

Claim 8

An elastomeric shock and vibration isolator having a chamber (A) filled with gas, comprising a lower plate (2) on which a mounting bolt (1) is secured, an upper plate (5) on which at least one assembly bolt (3) is secured, a ring shaped rubber member (6) arranged between said lower plate (2) and said upper plate (5), a tightening ring (13) fitted on a circumference of said ring shaped rubber member (6) characterised in that said isolator further comprises adjusting means (14, 15 18) for adjusting tightening force of said tightening ring (13) against said ring shaped rubber member (6).

Claim 9

An elastomeric shock and vibration isolator having a chamber therein, comprising a lower plate (2) on which a mounting bolt (1) is secured, an upper plate (5) having an opening (4) through a centre thereof andon which at least one assembly bolt (3) is secured, a ring shaped rubber member (6) arranged between said lower plate (2) and said upper plate (5), a lid (10) provided on said upper plate and forming said chamber together with said lower plate (2), upper plate (5) and ring shaped rubber member (6), a flexible rubber diaphram (9) forming together with said lid a sealed gas chamber (A) in said chamber, a divider (8) dividing two liquid chambers (B, C) in the residual space in said chamber and having an orifice (7) through which said two liquid chambers (B, C) are connected to each other, and a tightening ring (13) fitted on to the circumference of said ring shaped rubber member (6), said two liquid chambers (B, C) being filled with liquid and one (B) of said two liquid chambers being adjacent to said gas chamber (A) and separated therefrom by said flexible rubber diaphram (9), characterised in that said isolator further comprises adjusting means (14, 15, 18) for adjusting the tightening force exerted by said tightening ring (13) on said ring shaped rubber member (6).

Claim 10

An elastomeric shock and vibration isolator having a chamber therein, comprising a lower plate (2) on which a mounting bolt (1) is secured, an upper plate (5) having an opening (4) through a centre thereof andon which at least one assembly bolt (3) is secured, a ring shaped rubber member (6) arranged between said lower plate (2) and said upper plate (5), a lid (10) provided on said upper plate and forming said chamber together with said lower plate (2), upper plate (5) and ring shaped rubber member (6), a flexible rubber diaphram (9) forming together with said lid a sealed gas chamber (A) in said chamber, a divider (8) dividing two liquid chambers (B, C) in the residual space in said chamber and having an orifice (7) through which said two liquid chambers (B, C) are connected to each other, and a tightening ring (13) fitted on to the circumference of said ring shaped rubber member (6), said two liquid chambers (B, C) being filled with liquid and one (B) of said two liquid chambers being adjacent to said gas chamber (A) and separated therefrom by said flexible rubber diaphram (9), characterised in that said isolator further comprises adjusting means (14, 15, 18) for adjusting the tightening force exerted by said tightening ring (13) on said ring shaped rubber member (6).

Claim 11

An elastomeric shock and vibration isolator according to Claim 6 or Claim 7, wherein said tightening ring (13) is made of synthetic resin or light metal including aluminium.