Provided is a vibration isolator in which simplification of detachment work of a fixing component attached to a vibration isolating component enables the natural frequency of the entire support structure for a vibration source to be easily changed.

A vibration isolator includes a vibration isolating component including a rubber, which is an elastic body, the vibration isolating component supporting, in a housing having a slit, a support portion of a compressor as a vibration source that includes a motor and that is provided on a bottom plate of the housing; and a fixing component provided to pass through the slit and detachable from an outside of the housing, the vibration isolating component being fixed, in the housing, with the fixing component such that the fixing component is in contact with part of a periphery of a narrow portion of the vibration isolating component.

Provided is a vibration isolator in which simplification of detachment work of a fixing component attached to a vibration isolating component enables the natural frequency of the entire support structure for a vibration source to be easily changed.

A vibration isolator includes a vibration isolating component including a rubber, which is an elastic body, the vibration isolating component supporting, in a housing having a slit, a support portion of a compressor as a vibration source that includes a motor and that is provided on a bottom plate of the housing; and a fixing component provided to pass through the slit and detachable from an outside of the housing, the vibration isolating component being fixed, in the housing, with the fixing component such that the fixing component is in contact with part of a periphery of a narrow portion of the vibration isolating component.

A grommet is provided including a grommet body made of rubber-like elastic material and to be mounted on a mating component, and a center shaft configured to secure the grommet body on the mating component. The grommet body includes a cylindrical insertion portion to be inserted into a mounting hole formed on the mating component, a folded catcher formed on the leading end of the insertion portion, an umbrella-shaped head formed on the rear end of the insertion portion, and a groove-like release space defined on the inner circumferential surface of the insertion portion. The center shaft includes a shaft to be inserted into the inner circumference of the insertion portion, a folded catcher formed on the leading end of the shaft, and a head formed on the rear end of the shaft.

A grommet is provided including a grommet body made of rubber-like elastic material and to be mounted on a mating component, and a center shaft configured to secure the grommet body on the mating component. The grommet body includes a cylindrical insertion portion to be inserted into a mounting hole formed on the mating component, a folded catcher formed on the leading end of the insertion portion, an umbrella-shaped head formed on the rear end of the insertion portion, and a groove-like release space defined on the inner circumferential surface of the insertion portion. The center shaft includes a shaft to be inserted into the inner circumference of the insertion portion, a folded catcher formed on the leading end of the shaft, and a head formed on the rear end of the shaft.

A vehicle includes an exhaust, a frame hanger connected to a body of the vehicle, and an isolator connecting the exhaust to a body of the vehicle via the frame hanger such that the exhaust rotates about the frame hanger. The vehicle further includes a first frame bracket having a fixing portion fixed to the body of the vehicle and an engaging portion located near the isolator at a first distance. The first distance defines a first maximum allowable displacement of the exhaust as it rotates in a first direction about the frame hanger. The vehicle may include a second frame bracket having an engaging portion located adjacent to the isolator at a second distance opposite to the first frame bracket. The second distance may define a second maximum allowable displacement of the exhaust as it rotates in a second direction about the frame hanger.

A vehicle includes an exhaust, a frame hanger connected to a body of the vehicle, and an isolator connecting the exhaust to a body of the vehicle via the frame hanger such that the exhaust rotates about the frame hanger. The vehicle further includes a first frame bracket having a fixing portion fixed to the body of the vehicle and an engaging portion located near the isolator at a first distance. The first distance defines a first maximum allowable displacement of the exhaust as it rotates in a first direction about the frame hanger. The vehicle may include a second frame bracket having an engaging portion located adjacent to the isolator at a second distance opposite to the first frame bracket. The second distance may define a second maximum allowable displacement of the exhaust as it rotates in a second direction about the frame hanger.

Disclosed is a structure for preventing vibrations of equipment, which is capable of preventing vibrations generated by equipment disposed in an industrial facility, a bogie, a facility disposed in a clean room, or the like from being transmitted to the outside of the equipment. The vibrations generated by the equipment may be blocked from being transmitted to a steel grating, which is a lower structure, through a wheel by mounting an anti-vibration unit for blocking the vibrations generated by the equipment on the wheel mounted on a lower end of the equipment. In addition, vibrations, which are transmitted through a fixing bolt, of the equipment may be blocked by forming the anti-vibration unit to surround the fixing bolt for fixing the wheel to the equipment.

Disclosed is a structure for preventing vibrations of equipment, which is capable of preventing vibrations generated by equipment disposed in an industrial facility, a bogie, a facility disposed in a clean room, or the like from being transmitted to the outside of the equipment. The vibrations generated by the equipment may be blocked from being transmitted to a steel grating, which is a lower structure, through a wheel by mounting an anti-vibration unit for blocking the vibrations generated by the equipment on the wheel mounted on a lower end of the equipment. In addition, vibrations, which are transmitted through a fixing bolt, of the equipment may be blocked by forming the anti-vibration unit to surround the fixing bolt for fixing the wheel to the equipment.

An assembly, a system, and a method for protecting a portion of a pipeline from an impact in an excavation operation creating a void around the portion of the pipeline with a shell assembly are described. The shell assembly includes two half cylinders and fasteners to couple the two half cylinders together. Each half cylinder has a pipe cover shell, an inner shell, and an outer shell. The pipe cover shell is sized to conform to an outer surface of the pipeline. The inner shell is spaced apart from the pipe cover shell and coupled to the pipe cover shell by radially extended inner supports. Each inner support has a crumple component that is weaker than adjacent portions of the inner support. The outer shell is spaced apart from the inner shell with the inner shell disposed between the outer shell and the pipe cover shell.

A device (10) for protecting a mechanical part (20) against damage, in particular corrosion. The mechanical part bears on a support (22), or is under pressure as a result of weight. A flexible area (12) is designed to be in direct contact with the mechanical part and at least one row of rectilinear pads (14) designed to be in direct contact with the support. The row includes a plurality of pads (14-1, 14-2, 14-3) rigidly connected to the flexible area. The pads are more rigid than the flexible area, and are preferably rectangular in shape.