A nose assembly for fitting onto a fastener installation tool for installing fasteners of the type in which a part of the fastener is broken off during the installation process, the nose being provided with a housing and a sleeve, the sleeve having a spring, and a collar which is movable within the
A nose assembly for fitting onto a fastener installation tool for installing fasteners of the type in which a part of the fastener is broken off during the installation process, the nose being provided with a housing and a sleeve, the sleeve having a spring, and a collar which is movable within the housing against resistance of the spring, wherein plunger means are provided on the collar, and wherein the sleeve is threadably engaged with the collar, such that movement of the sleeve causes corresponding movement of the collar and plunger means, the plunger means being arranged to actuate a trigger thereby to open an air valve and allow a flow of compressed air through the tool, thereby to allow installation of the fastener into a workpiece.
대표청구항▼
What is claimed is: 1. A nose assembly for a fastener installation tool for installing fasteners of the type in which a part of the fastener is broken off during the installation process, said nose assembly comprising a housing and a sleeve, said housing being provided with a spring, and a collar w
What is claimed is: 1. A nose assembly for a fastener installation tool for installing fasteners of the type in which a part of the fastener is broken off during the installation process, said nose assembly comprising a housing and a sleeve, said housing being provided with a spring, and a collar which is movable within the housing against resistance of the spring, wherein plunger means are provided on the collar, and wherein the sleeve is threadably engaged with the collar such that movement of the sleeve causes corresponding movement of the collar and plunger means, the plunger means being arranged to actuate a trigger thereby to open an air valve and allow a flow of compressed air through the tool. 2. A nose assembly as claimed in claim 1 wherein a first locknut is provided to maintain the sleeve in position relative to the collar, thereby providing a first level of adjustment, and wherein the plunger means comprises an internally threaded arm, a screw which is insertable into the arm, and a locknut which is actuable to maintain the screw in position relative to the arm, thereby providing a second level of adjustment. 3. A nose assembly as claimed in claim 1 wherein the plunger means is further arranged to activate actuation means to install a fastener. 4. A nose assembly as claimed in claim 1 wherein an cavity is provided in the housing to allow a trigger to be moved into a position wherein air flow to a vacuum generator is disabled. 5. A nose assembly as claimed in claim 1 wherein location pins are provided on said housing to orientate the nose assembly relative to the tool, and retaining screws are provided to secure the nose assembly to the tool. 6. A nose assembly as claimed in claim 1 wherein the plunger means is disposed in an extension which extends further from a centre line of the tool than the housing. 7. A method of installing a fastener into an aperture in a workpiece using an installation tool provided with a nose assembly, said nose assembly having a housing and a sleeve engaged with a collar disposed within the housing, said method comprising steps of: (a) aligning said sleeve with said aperture such that a leading face of the sleeve contacts said workpiece; (b) pressing the sleeve against the workpiece, thereby causing the sleeve to be pushed inwardly into said housing, and thereby causing the collar to be pushed inwardly into the housing against the resistance of a spring, thereby causing a plunger means attached to said collar to actuate an extension trigger to open an air valve and allow a flow of air through the tool, and (c) pressing a tool trigger to activate actuation means to cause said fastener to be installed into said aperture. 8. A method of installing a fastener into an aperture in a workpiece using an installation tool provided with a nose assembly, said nose assembly having a housing and a sleeve engaged with a collar disposed within said housing, said method comprising steps of: (a) aligning said sleeve with the aperture such that a leading face of the sleeve contacts said workpiece; and (b) pressing the sleeve against the workpiece, thereby causing the sleeve to be pushed inwardly into said housing, and thereby causing the collar to be pushed inwardly into the housing against the resistance of a spring, thereby causing a plunger means attached to said collar to actuate an extension trigger to open an air valve and allow a flow of air through the tool, wherein the actuation of the extension trigger activates actuation means to cause installation of said fastener.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (4)
Nikkel, Robert E., Close edge distance pulling head.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.