US1762181A - Bushing - Google Patents

Description

June 10, 1930.

H MARLES BUsHING Filed Oct.. 18, 1926 Streuung/J Patented June 10, 1930 UNITED. STATES PATENT OFFICE HENRY MARLES, oFnETEoIT, MICHIGAN,

ASSIGNOR TO GEMMER MANUFACTURING- COMPANY, .0F DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN BUSHING Ap'pucation med october 1s, 192e.. serial No. 142,434.

This invention relates generally to bushings and refers more particularly to an im# roved form of bushing of the type set fbrth in United States Patent No. 1,475,-

As set forth in the patent, the outwardly bowed fingers 6 extend longitudinally of the parallel tongues 6. 'In theuse,.the end por tions 7 of each bushing will be moved lon'- gitudinally when one or more of the fingers flexes. Hence should only one or two ofsuch fingers at one side of the bushing flex at one time and thereby. Hatten out into substantially the longitudinal plane of the end por-v `tions 7 ,-the bushing would be unable to provide lthe proper resilient or cushioning effect, hence the outer casing 2 vwould strike 2,5 against the end portions 7 as well as the fiattened fingers and would jectionable noise.

In the present instance I have overcome set up an obthe objectionable features of the bushing set forth in the Patent 1,475,344 b`y providing a more resilient bushing that it constructed in such a way that the spring fingers are capable of.- flexing independently of each other and independently of the end ortions of the bushing. Hence the fingers o my,im proved construction will always provide the properresilient or cushioning effect and objectionable noises will be obviated entirely.

In the accompanying drawing: Figure 1 is atop plan view of a blank after the slotting'o eration;

Figure 2 is an e ge view'thereof. Figure 3 is a side elevation of qa bushing vembodying my invention. l

Figure 4 is an end elevation ofthe construction shown in Figure 3. Figure 5 is a side elevation of the bushing appliedto the steering column. o R ferring now to the drawing, 1 is a bushing embodying my invention for use between telescoping members such as forin- -stance, the normally concentric shaft 2`and casing- 3 ef a steering column. As shown, this bushing 1 is preferably' cylindrical in form and is provide-:l intermediate its endswith a circumferential series of outwardly projecting substantially V-shaped fingers 4.

To provide an efficient construction-these fingers ("4 are lpreferably curved' longitudinally and are arranged in tandem about thc bushing with the apices of the Vs arranged in a plane perpendicular to the axis of the bushing. .Hence, any one of the fingers 4 may Hex independently of the others and independently of the end portions of the bush-l ing.

Inthe process of construction, a fiat blank 5`i`s first stamped to the desired shape with ,the fingers cut therein as shown in Figures A 1 and 2. Inasmuch as the slots 6 are substantially V-shape and are spaced apart longitudinall'y of the blank, the metal between the slots may be utilized for the tongues. Following.,r the slotting operation the blank 5 is rolled into the cylindrical form so that the metal between the slots will be projected laterallyoutwardlyto form the fingers 4 asshown in Figures and 4.

In the use the bushing may be sleeved upon any cylindrical object for cushioning a surrounding object. In the present instance it is sleeved upon the shaft 2 so that' l the fingers 4 will *engage and provide the proper'resilient andcushioning effect for vthe outer tube or casing 3. Should the outer casing 3 move toward the inner shaft 2 the 'adjacent fingers 4 will flex independently of the other fingers and of the end portions 8 to cushion the Louter casing 3. Thus the bushing will not become' distorted and will not permit the outer casing 3 to set up any objectionable noise by contacting with the end portions 8. Hence the lbushing just described is more resilient and therefore more eflicient for the purposes set forth.

While it is believed that from the foregoing description, the nature and advantage of my invention will be readily apparent, I desire to have it understood that I do not limit myself to lwhat 'is herein shown and described and that such changes may 'be resortedto when desired as fall within the 'scope of what is claimed.

- What I claim as my invention is: 1.' A bushing'- having 'a tubular body and y a series of outwardly projecting `substantially V-shaped ngers curved longitudinally of said bushing. and arranged 1n. tandem f" about the body and extending substantially tangential thereto.

` 2. A bushingy having a tubular body and a circumferential'series of substantially V'- shaped lingers curved longitudinally of said bushing and projecting substantially tangential to the body and arrangedin tandem with the apexes of the Vs in a plane substantially perpendicular to the axis of the bushing.

3. A bushing having a cylindrical body and a series of independently movable projections extending tangentially from and curved longitudinally ofthe body portion.

4. Abushing having a series of independently movable substantially ll-shaped projections, the apeXes of the Vs projecting y outwardly beyond theplane of the bushing and the legs of the Vs formed integral with the bushing.

. 5. A bushing having a body portion formed with a series of longitudinally extending slots, the portion of the vbushing deining one longitudinal' edge of the slots being bent outwardly forming resilient fingers.

I In testimony whereof l ax my signature. a5 HENRY if l LES.

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