초록 ▼

An air spring has a pair of spaced end members for mounting the spring at spaced locations on a structure. A flexible sleeve of elastomeric material is sealingly engaged with the end members and forms a pressurized fluid chamber therebetween. A post is mounted on one of the end members and extends i

An air spring has a pair of spaced end members for mounting the spring at spaced locations on a structure. A flexible sleeve of elastomeric material is sealingly engaged with the end members and forms a pressurized fluid chamber therebetween. A post is mounted on one of the end members and extends into the fluid chamber. A shock absorbing two-piece bumper includes a rigid base which is formed with an axial opening and is seated upon one of the end members with the post extending into the opening. An elastomeric member is mounted within the axial opening of the rigid base member and is snap-fitted onto the post. The upper end of the elastomeric member extends outwardly over the upper end of the base to engage the opposite end member upon the air spring failing or experiencing a large deflection. The two-piece bumper provides a high load carrying capability with low deflection and replaces the heretofore used single member elastomeric bumper.

대표청구항 ▼

[ What is claimed is:] [1.] An improved air spring having spaced first and second end members adapted to be mounted at spaced locations on a structure and a flexible sleeve formed of an elastomeric material sealingly engaged with the end members and forming a pressurized fluid chamber therebetween,

[ What is claimed is:] [1.] An improved air spring having spaced first and second end members adapted to be mounted at spaced locations on a structure and a flexible sleeve formed of an elastomeric material sealingly engaged with the end members and forming a pressurized fluid chamber therebetween, said improvement including a post mounted on the first end member and extending into the fluid chamber, said post having an enlarged end portion and an undercut formed beneath said enlarged end portion and a shock absorbing bumper mounted on the post for possible impact engagement with the second end member, said bumper including:a rigid base member having first and second ends and an axial opening formed in said rigid base member and extending between said first and second ends, the first end being seated upon said first member with said post extending into said axial opening;an elastomeric member mounted within the axial opening of the rigid base member and engageable with the post for mounting said elastomeric member on said post, said elastomeric member having an outer end which seats upon the second end of the rigid base member in a spaced relationship from the second end member to secure said rigid base member on said first end member and for contacting the second end member when large deflections are experienced by the air spring.