US1857360A - Roller skate - Google Patents

Description

i/' 1932- J. 5. COLDWIELL Q I 1,857,360

ROLLER S,KATE

Filed July 20, 1931 2 Sheets-Sheet l A TTORNEYS y 10, 1932- J. 5. COLDWELL 1,857,360

ROLLER SKATE Filed July 20, 1931 2 Sheets-Sheet 2 0 Z5 I 7/ 7 7% INVENTOR.

Patented May 10, 1932 .umTEosrAT'Es I PATENT oFFIcs JOHN S. COLDWELL, OF MILWAUKEE, 'WISCONSIN, ASSIGNOR TO GLOBE-UNION MIG. I

60., OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN ROLLER sxa'rn Application filed July 20, 1981. Serial Ito. 551,929.

This invention relates to improvementsinroller skates. Among the ultimate objects of the invention are to provide a roller skate which is of simple, durable and well balanced construction and of attractive appearance, which is susceptible of quantity production at a eel plates and a novel mode of adjustably.

interconnecting the toe and heel plates, and

,this latter feature lends itself to a simple,

practical and yet elfective mode of reinforcing the toe and heel plates. Further, the

truck hangers are of novel construction, are secured in an advantageous and novel man ner to'the toe and heel plates, and together with the axle brackets or cradles are so designed as to simplify the operative assembly of the axle brackets with the truck hangers as well as the construction of the rubber blocks or elastic cushions and their-assembly with the hangers and brackets. The inven: tion also provides a simple, reliable and wellappearing means for mounting the toe clamps on the toe plate. n

Finally, the invention proposes a novel wheel which, while having a double row of ball bearings, is so compactly and closely organized as to include a minimum number of parts and to provide a free-running wheel of simple, durable and comparatively inexpensive construction.

' Other objects and advantagesreside in certain novel features ofthe construction, arrangementand combination of parts which will be hereinafter morefully described and particularly pointed out inthe appended claims, reference being had to the accompanying drawin s, forming a part of this specification, an in which:

Figure 1 is a view in central, vertical, longitudinal section showing a skate construction embodying the present invention;

7 Figure 2 is a bottom plan view of the skate shown in Figure 1, parts being broken away for the sake of illustration;

Figure 3 is a view showing the skate in end elevation looking toward the front end of the skate;

Figure 4 is a view in transverse section taken on line 4-4 of Figure 1 and looking in the direction ofthe arrows;

Figure 5 is a detail view taken on line 5-5 of Figure 6 and showing the wheel or roller structure;

Figure 6 is a view in section taken on line 66 of Figure 5,'parts being shown'in elevation for the sake of simplicity in illustration;

Figure 7 is a perspective view of the toe and heel plates with the truck hangers attached but with the axle brackets removed; Figures 8a'nd 9 are detail perspective views of the axle brackets;

Figure 10 is a detail perspective view of the toe clamp; Figure 11 is a fragmentary detail view i top plan showing a manner in which portions of the strap attaching lugs above the slots are offset; and

Figure 12 is a fragmentary detail view of another construction of truck hanger. Referring to the drawings, it will be seen.

i that the skate comprises generally a toe 'plate 1 and a heel plate 2, each of said platesbeing constructed ofa single piece of sheet metal.

The toe plate 1 has a rearwardly'directed extension 3 of box-like section in that this extension 3 has a plate-like body portion 3 formed as a continuation of the toe late 1 sectional and has angular flanges 4 integral with the margins thereof, eachyflange comprising, as clearly shown in Figure 4, a vertical portion 4 depending'from the plate-like body portion 3 and an inturned and horizontally disposed lower end portion 4'. The vertical portions of the flanges 4 are. integrally formed with reinforcing flanges 5 which are also integral with and extend vertically downward from the margins of the toe plate.

The heel plate 2 is provided with a forwardly extending shank or girder 7 having along its edges depending guide and reinforcing flanges 8. The flanges 8 terminate short on the forward end of the girder 7 to provide a plain or unflanged and flat latelike end portion 9 designed for inter tting with other elements of the skate structure in certain adjustments as will hereinafter more clearly appear. Heel plate reinforcing flanges 10 are integrally formed with the heel plate along portions of the side edges thereof and are also continuations of the girder flanges 8. p

From the foregoing it will be understood that the flanged girder 7 of the heel plate 2 may be adjusted or slid back and forth through the guide constituted by the box-like extension 3 of the toe plate. For securing these parts in any desired adjustment, a bolt 11 is provided and extends through the bolt hole in the plate-like body portion 3' of the -toe plate extension and through a slot 12 in the girder 7. A nut 13 and washer 13 coact with the bolt 11 and with the girder 7 to secure these parts in any desiredzadjustment.

Truck hangers designated at 15 and 16 are provided on the toe and heel plates respectively. As these truck hangers are of identical construction, a single description will serve for both. Each truck hanger comprises an inclined body plate 17 formed at its ends with integral bearing lugs 18 having bearing openings 18' and'integrally connected along its side edges with vertical side plates 19 connected by integral and offset connecting portions or shoulders 20 with attaching flanges 21. The attaching flanges 21 flatly engage the heel and toe plate and are spot welded thereto as indicated at 22. The offset portions or shoulders 20, coact with the underside ofthe'toe plate to'provide guides or guideways which, in certain adjustments,-

receive the plain flat forward end 9 of the girder to enhance the interconnection be tween the toe and heel plates. The inclined body plate of each hanger adjacent the junctures with the side plates 19 have retaining lugs 23 struck" therefrom. Elast c pads or rubber blocks 24 are positioned flatly against the body plate 17 of the hangers and are retained against lateral displacement by the lugs 23 and'against fore and aft displacement by the end flanges 25 of axle-brackets or cradles 26. of the trucks. The axle brackets 26 have integral bearing portions 27 which receive the axles 28 and their flanges have integral semi-cylindrical trunn ons 29 which interfit with the bearing openings 18' of the end lugs 18 of the truck hangers. As illustrated in Figure 1, the axle brackets preferably have integral reinforcements in the form of outwardly displaced rib-like structures 26'. Such reinforcements stiffen up the axle brackets and el minate bending and breaking of the axle bracket bearings and-make it possible to obtain these desirable properties while using thinner metal than customary.

The metal of which the truck hangers are constituted is sufiiciently resilient to enable it to be shaped and bent as described and also to enable one of the end lugs 18 to be bent to effect its interconnection with its trunnion 29 to complete the assembly and yet this metal is sufliciently stiff and strong to retain its form in the assembly.

The heel plate 2 is provided with slotted strap attaching lugs and the portions 36 of the lugs above the slots are offset outwardly to prevent cutting of the straps.

A conventional set of toe clamps 37 is provided on the toe plate 1 and has its screw 38 interconnected with the usual notched lug 39 secured to and depending from the toe plate and has its slotted clamp member 40.

an end of the bearing portion 27 of the adjacent axle bracket and by virtue of the engagement of its other end with a nut 47 threaded on the axle or the head of the axle. Intermediate its ends the hub'46 is provided with an outwardly or radially directed annular flange 48.- Between the flange 48 andbearing retaining cups'49 and 50 rows of ball bearings 51 and 51 are provided. The bearing-retaining on s 49 and 50 have outwardly or radially irected annular flanges '52 and 53 which flatly engage and are held together in the assembly by virtue of their confinement between the inwardly .directed flan es 54 and.55 of the sections 56 and 57 of the ody of the wheel. The section 56 consmall flange 61 which is spun or formed over. the side forming plate 58 'ofsection 56 to securel interconnect the two sections 56 and 57 of the body of the wheel.

From the foregoing, it will be understood that while the construction of the skate has been much simplifiedits strength and dure ability has been enhanced. These advantages result from the manner of constructing the truck hangers and welding them to the toe and heel plates and to the character of the interconnection between the toe and heel plates. Concerning the latter, it will be ap-. preciated that the box-like section of the rearward extension of the toe plate and flanged girder of the heel plate telescoping therein afford a superior mode of adjustably interconnecting the toe and heel plates. An

'sistsof the flange 54, a side forming plate other feature contributing to economy in cost of manufacture and to simplicity is the manner of interconnecting the axle brackets or cradles'with the truck hangers. By pro-- viding the integral trunnions' on the brackets the necessity of forming a hole within the .rubber block or cushioning pad andof proioning pads or rubber blocks is not essential,

since these pads are securely held against accidental displacement by the integral retaining lugs of the hangers and the end flanges of the axle brackets.

It is to be understood, however, that the action of the cushioning pads or rubber blocks may be stiflened whenever desirable .by employing retaining clips 70 interfitted with the cradles or axle brackets 26 in the manner shown in'Figure 12 and having flanges 71 engageable with the sides'of the rubber blocks supplementing the action of the cradles and lugs 23. in the assembly.

The guide lugs for the toe clamps being formed as extensions or continuations of the toe plate avoid puncturing of this,- plate and represent a simpler and less expensive man ner of organizing the toe clamps with the toe plate than the use of separate headed studs or rlvets. Finally, the novel wheel construction is of substantial advantage for while the double row of ball bearings provides a verv' free-running wheel the elements ofthe wheel are so compactly and closely organized as to include a minimum number of parts and as to involve an extremely simple and durable though. comparatively inexpensive construction.

The. invention claimed is: 1. A roller skate including toe and heel plates, said toe plate having ;a rearwardly projecting extension formed along its side edges with flanges having vertically extending portions provided with-inturned lower ends, said heel plate having a forwardly projecting flanged girder slidably interfitted with said flanges of said extension and their inturned ends and releasable means coacting with said extension and said girderfor securing the same in various adjustments- 2.-A roller skate including toe and heel plates, said .toe plate having a rearwardly rojecting extension formed along its side e 4 ges with flanges having vertically extend slidab ing portion}. provided with inturned lower ends, said ,toe plate having downturned reinforcing flanges extending along its side edges and formed. integral therewith and also'integral with the vertical portions of the flanges of the extension, s id h'eel plate projecting extension forme extension and their inturned ends, and releasable means coacting with said extension and sald girder for securing the same in various adjustments. 1 i

- 3. A roller skate including toe and heel plates, said toe plate havin a rearwardly along its side edges with flanges having vertically extending portions provided with inturned lower ends, said heel plate having a forwardly projecting flanged irder slidably interfitted with said flanges 0% said extension and their inturned ends, said heel plate having down- I turned reinforcing flanges integral with its.

side edges and also integral with the flanges of said girder, and releasable means coacting with said extension and. said girder for securing the same in various adjustments.

4. A roller skate comprising a toe plate, a heel late, said plates having interfitted plateike shanks, clamping means for securing said shanks in any selected longitudinal ad ustment, said shanks having integral marginal flanges, the flanges of the shank of the toe plate having integral supporting members engaging the lower edges of the flanges of the shank of the heel plate to maintain s'aid shanks flatly engaged and to hold said shanks against movement away from each other whereby to prevent bending forces from setting up any appreciable shearing or tensioning stress in the clamping means.

5. A roller skate comprising toe'and heel plates having interfitted plate-like shanks, clamping means for securing'said shanks in any selected longitudinal adjustment, said shanks having integral flanges, the flanges of one of the shanks having integral supporting members engaging the flanges of the other of the shanks to hold the shanks flatly engaged and thereby preclude bending forces from setting up any appreciable shearing or tensioning stress in the clamping means.

6. A roller skate comprising toe and heel plates, said plates having interfitted shanks, clamping means for securing said shanks in any selected longitudinal adjustment, said shanks having integral marginal flanges, the flanges of one of said plates gradually in creasing in depth toward the endof its shank and having integral supporting members engaging the flanges of the other shank to hold the shanks flatly and snuglfy engaged and prevent their movin away rom each other although providing or longitudinaladjusthavingaforwardl projecting anged girder y interfitte with said flanges of said JOHN s. coLDwELnQ

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