Apparatus for attaching power tool housing extensions
First Claim
Patent Images
1. An apparatus for attachment of a drive head housing to a motor housing in a power tool, comprising:
- a rigid flared lip on a first housing;
a coupling nut which slides over said flared lip;
a split rigid clamp ring which, when placed over the flared lip on said first housing, retains said coupling nut on said first housing;
a rigid sleeve bore means on a second housing into which said rigid flared lip and said split rigid clamp ring are inserted; and
means on said second housing to which the coupling nut is attached to secure the first housing to the second housing of the tool.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for rapid interchange of drive head units on a power tool motor unit is provided by forming a flared lip on the first of the two housings to be connected; capturing a coupling nut behind the flare with a split clamp ring; forming a bore on the second housing into which the flared lip and clamp ring of the first housing will fit; forming a positioning stop, within the bore, against which the flared lip of the first housing will be clamped; and providing a coupling device on the second housing to which the coupling nut of the first housing will be coupled to join the two housings.
-
Citations
18 Claims
-
1. An apparatus for attachment of a drive head housing to a motor housing in a power tool, comprising:
-
a rigid flared lip on a first housing; a coupling nut which slides over said flared lip; a split rigid clamp ring which, when placed over the flared lip on said first housing, retains said coupling nut on said first housing; a rigid sleeve bore means on a second housing into which said rigid flared lip and said split rigid clamp ring are inserted; and means on said second housing to which the coupling nut is attached to secure the first housing to the second housing of the tool. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A power tool, comprising:
-
a motor housing; a drive head in a housing; a flared lip means on the drive head housing and a sleeve bore means on the motor housing; a coupling nut having internal coupling means and featuring an inside flange at one end, which is capable of sliding over the flared lip means; a split clamp ring which, when stretchably placed over the flared lip means, retains the coupling nut on the housing; and external coupling means on the motor housing upon which the coupling nut is attached so that said inside flange forces the split clamp ring against the flared lip means causing it to wedgeably clamp the flared lip means within the sleeve bore means. - View Dependent Claims (8, 9, 10)
-
-
11. A power tool motor housing for use with a drive head, comprising:
-
a rigid flared lip on an end of the motor housing to which the drive head is mounted; a coupling nut, featuring an inside flange at one end, which is capable of sliding over the rigid flared lip on the motor housing; and a split rigid clamp ring which, when stretchably placed over the rigid flared lip of the motor housing, retains the coupling nut on the motor housing. - View Dependent Claims (12, 13)
-
-
14. A drive head unit for a power tool, comprising:
-
a drive head housing; a rigid sleeve bore means on said drive head housing; external coupling means on said drive head housing at said rigid sleeve bore means which will be engaged by an internal coupling means of a coupling nut on a motor housing; an internal positioning stop means within said rigid sleeve bore means, against which a flared lip means of said motor housing will seat when said two housings are clamped together; and a split clamp ring which, when stretchably placed over said flared lip means of said motor housing, retains said coupling nut on said motor housing.
-
-
15. A power tool motor unit for use with interchangeable drive heads, comprising:
-
a motor housing; a rigid sleeve bore means at an end of the motor housing which connects to a mating drive head housing; external coupling means on the rigid sleeve bore means for engagement with a coupling nut on said mating drive head housing; a forward rotor bearing which serves as a positioning stop for said drive head when it is clamped into the sleeve bore means of said motor housing; and a split clamp ring which, when stretchably placed over a flared lip means of said motor housing, retains said coupling nut on said motor housing.
-
-
16. A drive head unit for a power tool, comprising:
-
a drive head encased in a drive head housing; a flared lip means on a power input end of said drive head housing; a coupling nut having internal coupling means and featuring an inside flange at one end, which is capable of sliding over said flared lip means; and a split clamp ring which, when stretchably placed over the flared lip means, retains said coupling nut on the housing. - View Dependent Claims (17, 18)
-
Specification