US1970682A

US1970682A - Bushing tool

Info

Publication number: US1970682A
Application number: US467775A
Authority: US
Inventors: Yordi Arthur
Original assignee: Snap On Tools Corp
Current assignee: Snap On Inc
Priority date: 1930-07-14
Filing date: 1930-07-14
Publication date: 1934-08-21
Anticipated expiration: 1951-08-21

Description

Aug. 21, 1934. A. YQRDI 1,970,682

BUSHING TOOL Filed July 14, 1930 2 Sheets-Sheet l minimum Aug. 21, 1934.

A. YORDl' 1,970,682

BUSHING TOOL Filed July 14, 1930 2 Sheets-Sheet 2 3p 2725 V 425' .FI -15. 19 :5 1'1 12 I I i "if Wi 1 12 INVENTOR.

147772111 Yard Z:

Patented Aug. 21 1934 1,970,682 BUSHING r001.

Arthur Yordi. Milwaukee, Wis., 'assig nor to The Snap-On Tools, Inc., Kenosha, Wis., a corporation of Delaware Application July 14, 1930, Serial No. 467,775

9Claims. (01-. 29-882) .This invention relates to bushing tools and more particularly to bushing inserters, although certain features thereof maybe employed with r equaladvantage for other purposes.

" It contemplates more especially the provision of novel and inexpensive means adaptable for inserting different sized bushings without efiecting "deformation or strain in the mounting thereof.

9 The insertion ofbushings in devices such as carburetors presents problems of aligmnent and deformation of the Walls thereof owing to the ductility thereof. This is especially prevalent in carburetors, since such are moulded or otherwise cast from rather ductile materialsuch as brass which offers little resistance to deformation.

The insertion of throttle rod control bushings in carburetor housings, ordinarily creates stresses and strains suincient to permanently deform the walls thereof. This manifestly is undesirable and for that reason known methods and devices designed for this purpose have not proven entirely. satisfactory.

One object of the present invention is to simplify' theconstruction and improve the operation of devices of the character mentioned.

Another object is to provide a novel means for inserting bushings with the desired accuracy of alignment.

" T Still another object is to provide a bushing inserter of novel design which enables the assembly of bushings without deformation or injurious stresses. 7 A further object is to provide a bushing inserter which is capable of ready alignment with precision for bushing insertion without wall deformation. V I

' ,A still further object is to provide aself-aligning bushing tool capable of application to bushin'gs of varying sizes and shapes without impairingthe simplicity thereof. s I

Still a further object is to provide a bushing m1 having wall reinforcing means in combinainsuring bushing alignment. ,{Anaditional object is to provide a universally adaptable bushing tool capable of use with'devices of varying sizes and configuration; 1

Other objects and advantages will appear-from the following description of an illustrated em- I v the bushings and inserterstherefor are placed in bodiment of the present invention H In thedrawings:

bodying features'of the present invention. Figure 2 is a view similar to Figure 1 of a detion therewith for precluding deformation and Figure 1 is a view in elevation ofa device em-.

vice having a curved rather than straight reinforcing member thereon.

- Figure 3 is a view in elevation of a device similar tothat shown in Figure 2, parts thereof being broken away toclarify the showing.

Figure 4 is a plan view of a radius nut employed in connection with the device employed shown in Figure 2.

Figure 5 is a fragmentary sectionalview in elevation of the radius nut shown in Figure 4.

Figure 6 is a view in elevation'of a draw bolt constituting an element of the device shown in Figures 1, 2 and 3, it being adapted for operative connection with the radius nut shown in Figure 5.

' Figure 7 is a fragmentary sectional view of an aligning sleeve axially slidable over the extremity of the draw bolt shown in Figure 6.

- Figure 8 is a fragmentary sectional view of a stepped sleeve which constitutes a modified form of the device shown in Figure '7, it being capable of telescopic association with bushings of varying diameter.

Figure 9 is a fragmentary sectional view in elevation of the engaging shoulder employed in connection with the head of the draw bolt disclosed in Figure 6.

Figure 10 is a fragmentary sectional view in elevation of a bushing capable of telescopic association with the sleeve disclosed in Figure 8 or engageable by the head of the draw bolt shown in Figure -6 for insertion in a manner which will appear hereinafter.

Figure 11 is a perspective View of a spacer member employed inconnection with the radius nut disclosed in Figure 4. I

Figure 12 is a perspective view of a spacer member possessing a comparatively lesser radius than the corresponding element disclosed in Figure 11, itbeing capable of substitution for asso-' ciation with the radius nut to accommodate different sized or shaped walls.

Figure 13 is a sectional view in elevation of a housing showing the manner in which the bushing tool is applied in its operative position.

Figure-14 is a similar view of a housing with bushing ;,tool in operating; position, these being of larger size than theshowing in Figure 13.

(Figureliisa sectional view in elevation of a partitioned housing showing the manner in which position for the specified purpose.

Figure 16 is a sectional viewin elevation of a housing showing a bushing remover in operative position. 1 10 m1 EU GEE t3: the bore 18 prior to the the shoulder 17 thereof impinges against the; draw bolt shoulder 11 prior to its projection through aligned

bores

18 and 19 provided'in any suitable housing such as a carburetor 29 to insert; or install throttle lever control bushings therein. So that the sleeve may be placed in the bore 19 in opposite alignment with the bore, 181011 the installation of a bushing therein, the sleeve 15 is provided with a series of concentrically stepped shoulders 21 of gradually increased diameters. To; this. end, the s1eeve 15 is. provided with an axial bore 22 extending entirely-therethrough for. the slidableoreception ofreduced draw bolt shank 14 to effect the, alignment thereof with respect to insertion of the. bushing th reini i a jInhQrder that theinsertion of the bushing 18 may not deform the contour and shape of.- the housingwall 23, a; radius nut 24 is operatively connected to'the, draw bolt 10 through the rhe-v dium ofithe threads 13 provided thereon. In consequencethereof, the radius nut 24 is, provided with ail-boss 25 having an interiorly threadedbore 26comp1emental to the threads 13 of the draw bolt 10 for engagement therewith. In order that t eradius nut 24 may conform with and reinforee the wall 23 of the, housing, 20 ,in the, vicinity of the bore 18, the exterior edge 27 thereof. is provided with a corresponding curvature having the. radius ofthe interior chamber 23 or the housing20. In; consequence thereof, the radius nut 24.;is. first inserted .in the chamber 23 for the reception of the draw bolt-10'.there-. through in threaded engagement therewith so that the bushingdfi, carried-thereon in, impinging enga ementwith,thedraw bolt shoulder 11;may be wedged or drawn in to the bore 18,resp o nsive. to the-rotatiomcf the. poly onal head '12 grelative to theradius nut 24, thereby avoidin a ydefore matiQn-ei th housin wall :23. 1 a r I Tbeterm radius. nut. is used to denote that. such amember has an end, surface which is curved or arcuate about an axial pointtransverse to. he. re. o the nut with the. int rm d ary. dis ance, eqns itutinsothe rad us;- ther i re, this. expression denotes curvature or the presence of an, arcuate surface; i J

.:-:P tet eidrawine oi .the ushing 16-.fo1'. xed association the.- bore. .18. of the housing,20,- thealigning sleeve 15,.p1acedin; position. iorth er eption of; the. drawing bolt. shank 14 with one ofthe steppedshoulders21 thereofdn telescopic engagement with the bore 19, opposite. the bore i18 ;or witha bushing 16? previously inserted. in a manner. described in connection. with the bushing 16. By so doing t'he insertiongof the" bushing-16 is effected in true alignment and-withoutstressing or creating anydeformation in the w'alls-23-of*the-carburetor h'ous'ing'20, these beingusually cas't 'or otherwiseshaped' from' ductile material such as brass.

Housings varykin size and configuration and,

therefore the radius "nut 1 2'7- --of fixed curvature is not suitable nor-complemental to allsituation's',

This is also true of the sleeve 15, and on that account the latter is provided with the stepped shoulders 21 to effect alignment with the bores or bushings possessing various diameters within the range of the stepped variation provided thereon. Moreover, the radius nut 24 is rendered suitable for true fit or circumferential contact with the interiorlychambered housing 2'0, by the application or association of a spacer'element 28 thereon, The spacer element 28 comprises an arcuate plate which may vary in thickness to define an interior curvature 29 equivalent or corresponding with the curvature 27 of the radius nut 24. This presents an exterior curvature 30 ofrlarger radiusto fit a situation such as presented by a housing 20 having an enlarged interior chamber wall 23 corresponding in curvature with that of the arcuate exterior surface 30 of the spacer element 28; To this end, the spacer element. 28. is provided with a bore 31 somewhat larger in diameter than the interiorly threaded bore 26yof the radius nut 24 so that the draw bolt 10-may be projected-therethrough;

-In order to prevent relative movement'between the spacer element 28-and theradiusynut124, the latter is provided with an aperture 32;extending therethrough in parallelism withthe bore 26 for the receptionof a correspondingly positioned and shaped stud '33 fixed to the spacer element28 for projection from the curved surface 29 thereof, it being complemental'to and associable'with' the radius nut 24 to retain the assembledrelation' therebetween without accidental displacement; As shown, the radius nut 2e'has a stud'or rod 34 extending from the topsurface 35 thereof to enable the manual-retention of theradius nutg24 against displacement with the draw bolt 10:,responsive to the rotation thereof. With this arrangement and resort to the spacer element ;28';

face 29 of the radius nut 24. The bores 31f and projecting stud 33' are similarly shaped and positioned so thata 'single radius nut 24 may be used without variation in diiierent sizedhousings 20" such as shown in Figure 14.

With this arrangement; it"may be well to provide an extended "sleeve shank'151sothat true alignment may be efiected prior to effecting: the

insertion of the bushings in a manner described supra; The number of stepped shoulders 21 as well as the size thereof includingtheelongation;

of the sleeve shank 15 may be varied withina; wide range as commercial practice may dictate." Of course, the draw bolt lo'may be employed-in connection with the radius nut 24 without resort:

to analign'ing' sleeve 15 and suchvariationsmay;

bemade in the form and association of theele rhents as may be deemed advisable gar-practical to meet different and special situations. In theremoval of the bushings 16, adra-w-bolt- 1Q --'is preferably provided-with a threaded tapered -or frusto-conical shoulder 11"-' of sufficient -elonga-1 tion to accommodate various sized bushings.-

With this construction, the forced-"axial engagement-responsive to the rotation; thereof in the direction brittle bushing 16 to effect-tit ing engagement with the bore, creates a fixed connection therebetween to an extent suificient to efiect removal without any appreciable resistance. The removal is preferably accomplished by tapping the extremity 14 of the draw bolt 10' which preferably extends through the opposite bore 19 provided in the housing 20" for exterior access. As a result, a hammer or other implement may be used for striking the exteriorly accessible extremity 14' of the draw bolt 10 to the end of accomplishing immediate removal.

With a device of the character described hereinabove, it will be apparent that bushing insertion and removal is capable of ready accomplishment without any possible deformation or injurious stresses to the member designed for the reception thereof. Moreover, the tool is universally adaptable to various sized members and housings so that an inexpensive device of novel design has been provided for application without entailing much time, labor or expense.

Various changes may be made in the embodiment of the invention herein specifically described without departing from or sacrificing any of the advantages of the invention as defined in the appended claims.

I claim:

I. In a bushing manipulating device of the character described, the combination with a bushing engaging draw bolt, of a radius nut displaceable responsive to the rotation of said draw bolt, and an aligning draw bolt sleeve telescopic on said draw bolt for the purpose set forth.

2. In a device of the character described. the combination with a bushing engaging draw bolt, of a radius nut responsive to the rotation of said draw bolt, a radius spacer concentrically associated with said radius nut for ready detachment therefrom, and an aligning draw bolt sleeve for the purpose set forth.

3. In a device of the character described, the combination with a bushing engaging draw bolt, of a radius nut responsive to the rotation of said draw bolt, a radius spacer concentrically associated with said radius nut for ready detachment therefrom, an aligning draw bolt sleeve for the purpose set forth, there being concentrically stepped shoulders on said sleeve to engage correspondingly shaped bushings.

4. In a device of the character described, the combination with a draw bolt, of a bushing engaging sleeve operatively connected to said draw bolt, there being stepped shoulders on said sleeve to singly engage correspondingly sized bushings for aligning said draw bolt, and a wall engaging member on said draw bolt to preclude wall deformation responsive to bushing insertion.

5. In a device of the character described, the combination with a draw bolt, of a wall engaging member in threaded engagement with said draw bolt, and bushing engaging means on said draw bolt for aligning said wall engaging member and draw bolt, and complemental means on said wall engaging member and draw bolt to effect relative displacement therebetween responsive to the rotation of said draw bolt.

6. In a device of the character described, the combination with a draw bolt, of a wall engaging member in threaded engagement with said draw bolt, spacer members complemental to said wall engaging member for detachable association therewith, and bushing engaging means on said draw bolt for aligning said wall engaging member and draw bolt, and complemental means on said wall engaging member and draw bolt to effect relative displacement therebetween responsive to the rotation of said draw bolt.

7. In a device of the character described, the combination with a draw bolt, of a wall engaging member in threaded engagement with said draw bolt, spacer members complemental to said wall engaging member for detachable association therewith, bushing engaging means on said draw bolt for aligning said wall engaging member and draw bolt, and complemental means on said wall engaging member and draw bolt to effect relative displacement therebetween responsive to the rotation of said draw bolt, said bushing engaging means comprising concentrically stepped peripheral shoulders for telescopic reception of various sized bushings.

8. In a device of the character described, the combination with a draw bolt, of a wall engaging member in threaded engagement with said draw bolt, spacer members complemental to said wall engaging member for detachable association therewith, bushing engaging means on said draw bolt for aligning said wall engaging member and draw bolt, complemental means on said wall engaging member and draw bolt to effect relative displacement therebetween responsive to the rotation of said draw bolt, and means for precluding relative movement between said wall engaging and spacer members.

9. In a device of the character described, the combination with a draw bolt, of a wall engaging member in threaded engagement with said draw bolt, spacer members complemental to said wall engaging member for detachable association therewith, bushing engaging means on said draw bolt for aligning said wall engaging member and draw bolt, complemental means on said wall engaging member and draw bolt to effect relative displacement therebetween responsive to the rotation of said draw bolt, means for precluding relative movement between said wall engaging and spacer members, and means projecting from said wall engaging member for maintaining its relative rotatable position with said draw bolt.

ARTHUR. YORDI.