US1231055A - Controlling mechanism. - Google Patents

Description

R. P. PACKARD.

CONTROLLING MECHANISM.

APPucAnoN flLED 1A". ls. |911.

1,231,055, Patented June 26,1917.

INVENTOR. @2l/07000 /gciard B Y 1 TTORNE Y.

RAYMOND P. PACKARD, or rrAcoivrA, WASHINGTON.

CONTROLLING MECHANISM.

Specification of Letters Patent.

Patented June-26, 19.17.

Application filed Janu'aryvl, 1917; Serial N.'1'43,197.

To all elf/wm t may concern.'

Be it known that I, RAYMOND P. PACK- ARD, a citizen of the United Sta-tes, residing at Tacoma, in thecounty 'of Pierce, State of l/Vashington, have invented certain new and useful Improvements in Controlling Mechanism, of which the following is a specification.

This invention relates to devices for pulling or pushing a controlling wire by the rotary motion of a controlling handle, and has special reference to the control'of the enginein a motor-cycle and other'similar uses. The invention is especially adapted for the operation of the motor cycle control wire which is mounted within a coiled spring casing and which has longitudinal motion alone therein. The objects of the invention are to provide means whereby said wire is given its longitudinal motion therein when a rotary motion is given to the handgrip, said mechanismbeing self-contained and readily inserted in or removed from the handle bar in which it is mounted, and which is simple to make, assemble and install, and is effective in its action.

I attain these and other objects bythe devices, mechanisms, and arrangements illus trated in the accompanying drawings, in which- Figure 1 is a longitudinal section of my device in use; Fig. 2 is an enlarged crosssection thereof; Fig. 3 is a side elevation of the rotary sleeve; Fig. 4 is a similar' view of the fixed sleeve; and Figs. 5 and 6 are elevations respectively of the conical screw plug for expanding one end of the fixed sleeve and the conical screw nut for contracting the other end thereof.

Similar numerals of reference refer to similar parts throughout the several views.

Referring to the drawings; the mechanism is mounted in the end of the hollow handle bar 1. It consists of an outer fixed sleeve.y clamping the spring casing of the control, wire and clamped into the end of the said handle bar 1; a rotary sleeve mounted within the fixed sleeve and connected to the -hand grip mounted outside of the handle bar 1; and a sliding piece mounted within the rotary piece and engaging slots in both of said sleeves whereby it is preventedA from rotation with the rotary sleeve but is given an aXial motion therein, said sliding piece being firmly` clamped 'to the control wire', whereby the sliding motion of said piece is communicated to said wire.

The outer fixed sleeve 2 (Fig. 4L) fits snugly within the handle bar 1. It is cylindrical in shape. rPhe outer end is split at 3 and is screw-threaded. A conical screw-threaded plug i screws into said outer end vand expands it into tight contact with the handle bar 1, thus preventing the mechanism from moving in the said handle and yet allowing its ready removal therefrom when said plug 4 lis removed from the sleeve 2.V The head of the plug a is of substantially the same size as the outer diameter of the handle bar 1. The plug 4 has a central hole therethrough. The inner end 5 of the sleeve 2 is of reduced diameter and is split at 6 and is screw-threaded. A nut 7, having a conical screw-threaded hole therein, screws on said part and forces its parts together whereby the casing S of the control wire 9 is firmly clamped to the sleeve 2. The nut 7 is of substantially the size of the outer diameter of the sleeve 2 and fits loosely in the handle bar 1. Thev sleeve-2 is provided with a long straight slot 10, as clearly shown in Fig. 4.

The rotary sleeve 11 (Fig. 3) is provided with a neck 12 at its outer end, said neck 12 passing through the plug i and being provided with a squared portion 13 near its end, said part 13 fitting in a squared hole in the outer plate of the hand grip 14C, the extreme end 15 of said neck being' screwthreaded to receive a suitable nut 16 outside of said plate, whereby the said hand grip 1st is held in place on the handle bar l. The hand grip 14 is of the usual form and is shaped to permit a firm grip of the hand. The rotation of the hand grip 14 by the hand, rotates the sleeve 11 through the parts 12 and 13. The main body of the sleeve 11 is hollow and is adapted to receive the sliding piece as hereinafter described. A helical slot 17 is made in said sleeve 11, said slot being in a corresponding position to the slot 10 in the sleeve 2.

The sliding piece 18 fits in the hollow sleeve 11 and is free to move axially therein. t is provided with a central axial hole 19 into which the control wire 9 fits. A screw plug 20 enters a suitably prepared hole in the piece 18, at right angles to the axis thereof, the end of said plug being adapted to engage and bend the wire 9 so that lsaid piece 18 is firmly held to the end of the wire. The screw plug 2O carries two wheels or rollers 21 and 22 thereon which lit in the slots 17 and 10 respectively.

It is evident that, if the sleeve 11 is rotated, the sliding piece 18 will tend to rotate with it and that, since the wheel 22 engages the straight slot 10 in the Xed cylinder 2 and is mounted on the piece 18, the said piece is prevented from thus rotating, hence the only possible movement whereby it may give way to the pressure of the slot 17 (due to the rotation of the part 11) is by sliding in the part 11 to such position that said wheels 21 .Y and 22 may each occupy their positions in said slots 10 and 17, thus the rotary motion imparted to the hand grip 14 is changed to a longitudinal motion of the piece 18 and of the control wire 9.

The mechanism is assembled and installed in the following manner The nut 7 and the sleeve 2 are passed independently over the cover 8 of the wire 9 a sufficient distance so kthat the wire 9 extends out of said sleeve; then the piece 18 is placed on the end of the wire 9; and then the sleeve 11 is slipped over the piece 18; thenV the sleeve 2 is drawn back over the sleeve 11, and the screw 20, with its wheels 21 and 22, is inserted through the slots 10 and 17 into the piece 18 until it irmly clamps the wire 9 therein; then the nut. 7 is screwed on the part 5 of the sleeve 2 and clamps the cover 8 thereto; then the mechanism is passed into position within the handle bar 1 and the plug 4 is screwed over the neck 12 and into the open end of the sleeve 2 to clamp the mechanism into said position and to prevent its movement therefrom; then the hand grip 14 is passed over the end of the handle bar 1 and is fitted to the squared part 13 vof the neck 12; and then the nut 16 is screwed into place to hold the said hand grip in such position.

Having described my invention, what I claim is: I

In a device of the class described, the combination with a hollow handle bar; of an outer sleeve fitting within said handle bar and having a straight longitudinal slot therein; means for fixedly clamping the outer end of said sleeve in said handle bar; a control wire within a casing; means for clamping the inner end of said fixed sleeve to said wire casing; a hollow rotary inner sleeve mounted within said outer sleeve and having a central neck extending out from the handle bar, said sleeve having a helical slot therein; a sliding piece having a hole therein adapted lto receive the control wire; a screw passing through the slots in said outer and inner sleeves and into said sliding piece to clamp said control wire therein; and a hand grip mounted outside of the handle bar and secured to the neck of said inner rotary sleevel whereby said sleeve may be operated.

Y RAYMOND P. PACKARD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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