Device for fixing external part to shaft
First Claim
1. A connection device comprising:
- a shaft including a first end having a groove in a substantially axial direction on an outside radial surface of said shaft, said first end also including external threads;
a nut having internal thread means for engaging with said external threads of said shaft, said nut having an engageable groove; and
a washer defining a shaft opening and said shaft opening having an internal diameter substantially similar to an external diameter of said shaft, said washer including a nut engagement means for engaging said washer with said nut, said nut engagement means including a pawl engageable with said engageable groove of said nut, said washer also including shaft engagement means for engaging said washer with said shaft, said shaft engagement means including a tongue engageable with said groove of said shaft, said tongue having a circumferential edge positioned substantially along a central line of said pawl of said washer.
3 Assignments
0 Petitions
Accused Products
Abstract
A device for fixing an external part to a shaft, which clam a boll and roller bearing by a washer and a nut. The washer is provided with a plurality of projecting engageable pawls on the outer periphery thereof and a projecting tongue piece on the inner periphery thereof. This tongue piece is inserted into an engageable groove formed in an externally threaded portion of the shaft. The nut has engageable grooves for receiving the engageable pawls of the washer, on the outer periphery thereof. This nut is threadably coupled onto the externally threaded portion of the shaft, thereby the ball and roller bearing is clamped interposing the washer between the bearing and the nut. The tongue piece of the washer is formed in such a manner that, out of the opposite ends in the circumferential direction of the tongue piece, at least the forward end in a direction of rotation of fastening the nut is positioned on the center line or thereabout of the engageable pawl. The shaft may be a hollow shaft.
18 Citations
17 Claims
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1. A connection device comprising:
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a shaft including a first end having a groove in a substantially axial direction on an outside radial surface of said shaft, said first end also including external threads; a nut having internal thread means for engaging with said external threads of said shaft, said nut having an engageable groove; and a washer defining a shaft opening and said shaft opening having an internal diameter substantially similar to an external diameter of said shaft, said washer including a nut engagement means for engaging said washer with said nut, said nut engagement means including a pawl engageable with said engageable groove of said nut, said washer also including shaft engagement means for engaging said washer with said shaft, said shaft engagement means including a tongue engageable with said groove of said shaft, said tongue having a circumferential edge positioned substantially along a central line of said pawl of said washer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A lock washer comprising:
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a main body formed in an annular shape and defining a shaft opening; a tongue extending from said main body into said shaft opening, said tongue having a circumferential edge; and a pawl extending radially outward from said main body, said pawl having a center line positioned substantially in line with said circumferential edge of said tongue.
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Specification