US1504617A

US1504617A - Pressed-metal spider having crossed arms

Info

Publication number: US1504617A
Application number: US558054A
Authority: US
Inventors: Harvey D Geyer
Original assignee: Inland Manufacturing Co
Current assignee: Inland Manufacturing Co
Priority date: 1922-05-03
Filing date: 1922-05-03
Publication date: 1924-08-12
Anticipated expiration: 1941-08-12

Description

Aug. 12 1924.

1,504,617 H. D. GEYER PRESSE!) METAL SPIDER HAVING CROSSED ARMS Filed May 3, 1922 2 {Sheets-Sheet l Wness IvEri-lnr'.

Aug, 12 1924.

H. D. GEYER PRESSED METAL SPIDER HAVING CRUSSED ARMS 1922 2 Sheets-Sheet 2 Filed May 5 Patented Aug.. 12, 1924.

narran stares istitu rarest orries.

HARVEY D. GEYER, QF DAYTON', OHIO, ASSIGNOR, BY MESNE ASSGNMENTS, 'l'Ov THE INLAND MANUFACTURNG CMPANY, 0l1 DAYTON, OHEO, A COR-PORATTON 0F DELA.-

WARE.

PRESSED-l/LETAL SPIDER HAVEN@ CROSSED AIR-MS.

Application filed May 3,

To all whom t may concern Be it lin-own that I, Hain/nr D. Gerini, a citi-Zen of the United States of America, residing at Dayton, county of Montgomery, and State of Ohio, have invented certain new and useful Improvements in Pressed- Metal Spiders Having Crossed Arms, et which the following is a full, clear, and exact description.

This invention relates to handwheels and embodies certain improvements in the construction disclosed in my cop-ending application, Serial No. 529,914, liled January 17, 1922.

An object of this invention is to provide a handwheel which is very cheap tol manufacture and yet is of sturdy construction an'd good appearance. Among the more specilic objects is to construct the spider of pairs of pressed metal arms which lap over each other at the hub and are secured to the Ahub by a simple and efficient means.

Another object is to form a spider which may be easily expanded for securing it to the rim, after which its rigidity may be increased to cause it to retain its expanded shape.

Further objects and advantages ot' the present invention will be apparent from the following description, reference being had to the accompanying drawings, wherein preferred embodiments of the present invention are clearly shown.

In the drawings:

Fig. 1 is a plan view showing one form oi embodiment of my invention;

Fig. 2 is a section through the wheel o'l Fig. 1, but showing one of the spider arms in side elevation;

Fig. 3 is a section on line fik-3 of Fig. 1, showing in full lines the angle of the arm flanges before expanding the spider, and in dotted lines the angle to which the flanges are turned to increase the stillness of the arms after expanding;

Fig. l shows a modified 'form of arm end for taking the radial pressure of thearm against the rim;

Fig. 5 shows another modification of the arm end;

Fig. 6 is a modification wherein the spider is not expanded into the rim but is secured thereto; and

1922. Serial No. 558,054.

Fig. 7 is a sectional view through the wheel of Fig. 6.

Throughout the several views of the drawings similar reference characters refer to similar parts.

Numeral 10 designates the rim of the handwheel which 1 have here shown as constructed of coiled wood laminations, however any other term ot' rim may be used with this invention il desired. rlhe spider, designated in its entirety by numeral 11, is formed of two pressed metal pieces 12 and 13 which are lapped over each other at the center of the wheel, thus 'forming the karms of the spider. The arm piece 12 is provided with a downwardly turned flange 1d extend" ing all the way across the center portion (see Figs. 1 and 2), while the arm piece 13 has its downwardly turned flange 15 cut oli at the points 1G where it abuts the flange 14, thus permitting the arm `piece 13 to lie Aflat on top the arm piece 12 as clearly shown. Both the arm piece-s 12 and 13 are preferably widened out at the center as shown, for symmetry and to permit the 'flanges 14 of the arm piece 12 to encircle the flange 21 of the hub 20, which therefore lies snugly up against the bottom of arm piece 12. A clamp-ing plate 22 provided with downwardly turned lugs 23 which extend through suitably provided holes in pieces 12 and 13, as shown, serves to securely 'fastenthe arm pieces 12 and 13 to the hub 20. rlhe ends of the lugs 23 are bent inwardly around the edge of the hub flange 21. Prete 1ably the hub flange 21 is recessed at its periphery for the lugs 23 to pass downwardly therethrough in order to hold the hub 2O against relative rotation. rlhis construction is more clearly shown in Fig. 7. 1t will be seen that the clamping plate 22 with its projecting lugs constitutes a single integral means ilor holding together the spider arms and hub in an `eflicient manner and at the same time avoids any unsightly rivet or bolt heads at the center et the wheel, as is ordinarily the case in pressed steel spiders.

The flanges 14- and 15 et arm pieces 12 and 13 ar-ewidened out sufliciently a short distance from the center to permit their being turned inwardly to form the box' sections 25 in the spider arms, as shown. These box sections 25 greatly increase the strength of the arms against buckling under the radial'pressure exertedl upon them when the spider is expanded into the rim, as will be more 'fully described later. Also the box y sections present better' appearing spokes,

and more convenient means for grasping with the hand as is o'l'ten done in actual use of steering` wheels.A Y

In Figs. 1 and 2 theends of the arms 25 l have the box section cut at the corners and the sides turned inwardly to form shoulders 26 to take the V radial Vpressure of the arm against the rim when the spider is expanded. A modification. is shown in 'Fig'. 4 wherein the sidesV are turned outwardly'to form shoulders 26 for the same purpose. VAfter cutting away the sides as described, the top and l `bottom ot the box section 25fofrm two wideY flat'projectiens 27, which are adaptedrto be inserted into corresponding recesses 28 1n the inner periphery ot the rim 10 by theeex- Vpanding of the spider. By making projections 27 of only small thickness and obtaining thenecessary strength by their width only very narrowY slots 28 will beY required being described in my previous application,

vabove mentioned, until the shoulders 2G or 26, as the case may be, are tightly pressed against the inner periphery of the rim. The arm piece 12 of the spider is originally'mad with its l'lange 14 turned downwardly at only a small angle in the vicinity of thesection line 3 3of Fig. l (see Fig. 3) in order to' permit the easy bending of the piece 12 when the spider-'is expanded. After the spider is expanded into the rim 1Q the flanges 14 are then turned down to the dotted position 14 in Fig. 3, thus greatly stilening the arm piece 12 and 'causing it to retain its exl panded shape.

Fig. 5 shows a modified method vof insertlng the Yarm end into the'rim 10. rIhe recess 28Vlor the projections 27 i are cut in rim 10 YatY a diverging angle as shown; when the spider is expazrided the projections 27 enter the recesses 2S andare bentapart by following theV diverging recesses 28', In this modification the

shoulders

26 or 26 may be entirely dispensed with Vif desired and the radial pressure ofthe arm uponY the rim be taken by the angularly inclined projections 27. Y j l Y Figs. Gand 7 show a modification wherein the spider is fastened to theY rim 10 by screws or by iany suitable separate attaching'means A instead ofbemg expanded into recesses in the rim. Y.

The

overlappmgrarm pieces

30 and 31 are connected together and to the hub 2() by the clamping plate 22 in a similar manner to the spider of 'Figs 1 and 2. Hence the central portion of the spider will not be again described in detail. The flanges 32 of the arms are curved around under the arms to form oval shaped sections as shown in Fig. 6 instead of the box section shown in F igs. 1 and 2. Oil course either modification could employ either the box or oval section arms as desired. In Figs. 6 and 7 the flanges 32 are cut away near the arm ends and the ends are bent around to fit the rim 1() as shown in F 7. Preferably the ends 33 are given slightly more curvature than the rim 10 so they will bear against the rim at only two points and the middle portion will act as a spring to hold the screws 34- tight at all times and prevent them from loosening and rattling. In all modifications described herein the hub 2O may be attached to its shaft by means of a key or other suitable means, and a nut or bolt head bearing against clamping plate 22 may hold the handwheel on its shaft, as will be clearly understood by those skilled in the art.

While the forms of mechanisms herein shown and described, constitute 'preferred forms of embodiments ot the present invention. it is to be understood that other forms might be adopted, all coming within the scope ot the claims which follow.

lVhat I claim is as follows:

1. A. wheel spider includingr a hub portion, a plurality of pairs of metal arms lapped over each other at the hub, and a metal plate Jfor clamping the arms to the hub. portion, said plate having projections integral therewith which are bent around part of the hub.

2. A wheel spider including a hub portion, a pluality of pairs of metal arms lapped over each other at the hub, and a metal plate for clamping thearms to the hub portion, said plate having clamping lugs which extend through holes in the arms.

3. A wheel spider including a hub having a flange, a plurality of pairs of metal arms lapped over each other atl the hub, and a single means for clamping the arms to the hub flange, said means having lugs integral therewith which extend through holes in the arms and are then bent around the flange.

V 4. A wheel spider including a hub, a plurality of pairs of flanged metal arms lapped lover each other at the hub, the flanges of all except one pair of arms being cut away where the arms cross to permit the arms to lie in close contact with each. other and a malleable metal member for clamping the arms to the hub. l

5. A wheel spider including a. hub, a plurality of pairs of fianged metal arms lappel over each other at the hub, the fianges of all eXcept one pair of arms being cut away where the arms cross to permit the arms to lie in close contact with each other and with the hub, and means for securing the arms to the hub.

6. A wheel spider including a plurality of pressed metal arms, said arms having comparatively narrow flanges near the center to permit easy bending of the arms for the purpose of expanding the spider, and comparatively wide flanges at a distance from the center to increase the compressive strength of the arms.

7. A handwheel having a rim and metal spider, the arms of said spider being of relatively narrow depth near the hub to nei-mit easy bending and of greater depth at other points to carry radial compression, the ends of the arms being` held in tight Contact with the rim by forcibly spreading the spider.

8. A handwheel having a rim and a spider, said spider including a plurality of pairs of arms lapped over each other at the hub, one of said pairs of arms being flanged across its central portion to give stiffness to the spider, the ends of the arms being adapted to be forcibly projected against the rim by expanding the spider.

9. ln a handwheel, a spider having` flanged pressed metal arms with depending flanges, a rim having recesses in its inner periphery into which the outer ends of the arms are adapted to be projected by forcibly expanding the spider to increase its outer diameter, and shoulders adjacent the outer ends of the arms formed by bending the arm flanges at an angle to the arm.

10. rllhe steps in the construction of a handwheel comprising, expanding a metallic spider to cause the outer ends of its arms to be forcibly pressed against the rim of the handwheel, and then while said spider is held in expanded position increasing thel rigidity of the spider arms to cause them to retain the expanded position.

11. The steps in the construction of a handwheel comprising, expanding a metal spider to cause'the outer ends of its arms to more into suitable recesses in a rim, and then turning down a flange on each of said arms to increase the rigidity thereof to prevent return to non-expanded position.

12. The steps in the construction of a handwheel comprising, expanding a metal spider to cause the outer ends of its arms to be forcibly pressed against the rim of the handwheeh and then increasing the rigidity of said arms by turning down flanges on said arms while they are held in expanded position.

In testimony whereof I hereto affix my signature.

HARVEY D. GEYER.

lVitnesses Guo. E. PAsoo, ELMER E. FREED.