| 摘要 |
A pneumatic tool for facilitating the installation and removal of a hollow, elastically extensible handgrip on a tubular portion of a device such as, for example, the handlebar of a bicycle or motorcycle. The tool has a handle portion adapted to be comfortable gripped by the hand. A proximal end of the handle portion is adapted to provide a leak-proof connection to a source of compressed air. The distal (opposing) end of the handle portion has an extension portion extending distally therefrom with a relatively short insertion tip portion having an air injection port extending laterally from a distal end of the extension portion. An air-conducting conduit is coextensive with the handle, extension and insertion tip portions of the tool. The air injection port is in fluid communication with the source of compressed air via a valve such as a piston valve. The valve controls the flow of air through the conduit. The insertion tip portion is angled with respect to the axis of the handle portion of the tool and has a convex upper surface and a concave lower surface; the curvature of the lower surface substantially conforming to the curvature of the outer surface of the tubular member. In operation, to install a handgrip, the open end of the handgrip is inserted over the end of the tubular member and the insertable tip portion of the tool is interposed between the handgrip and the tubular member and compressed air is injected therebetween to radially expand the handgrip. The handgrip is then easily advanced over the tubular member. When the handgrip is correctly positioned on the tubular member, the airflow is terminated and the handgrip elastically contracts to adhere to the tubular member. To remove a handgrip, the process is reversed.
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