US2989325A

US2989325A - Journal box packing

Info

Publication number: US2989325A
Application number: US733583A
Authority: US
Inventors: Frederick E Lukens
Original assignee: ALBERT Manufacturing CORP
Current assignee: ALBERT Manufacturing CORP
Priority date: 1958-05-07
Filing date: 1958-05-07
Publication date: 1961-06-20
Anticipated expiration: 1978-06-20

Description

June 20, 1961 F. E. LuKl-:Ns

JOURNAL Box PACKING Filed May 7, 1958 uRErHA/VE URETHANE g 30 ADHES/VE mw.. m 4 m Lm F E.,

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ki, :blllfr United States Patent O 2,989,325 JOURNAL BOX PACKING Frederick E. Lukens, Palos Heights, Ill., assignor to Albert Manufacturing Corp., a corporation of Indiana Filed May 7, 1958, Ser. No. 733,583 3 Claims. (Cl. 286d6) The present invention relates to an improvedv journal box dust guard which functions to minimize oil leakage and effectually intercepts and prevents dust and deleterious media from entering the journal box.

Briey, the invention in its preferred embodiment is characterized by a shield in the form of a compressibly resilient pad possessing desired cushioning properties and dust and oil sealing properties. The shield, as an entity, is constructed and designed to lit telescopically into the usual groove or channel at one end of the journalbox and embodies a number of features not found, it is believed, in generally analogous prior art adaptations.

One feature of the invention resides in the adoption and use of a body portion which is preferably, but not necessarily, constructed of urethane or an equivalent material having the spongy and sealing properties desired. This material has been found to be best for oil resistance. However, wool, felt, cotton wicking, rubber or suitable plastics of appropriate flexibility may be utilized.

The body portion is encompassed or surrounded by an outer felt rim or binder to insure added protection against dust and to absorb any excess oil. The Ifelt also keeps a wire frame, which is embedded in the shield, from wearing through the pad or breaking.

The invention also features a center ring or collar, preferably of felt and which has the desired snug-fitting and oil sealing characteristics desired.

Other objects, features and advantages will become more readily apparent from the following description and the accompanying drawing.

In the drawing wherein like numerals are employed to designate like parts throughout the views:

FIG. 1 is a perspective View of the improved journal box guard.

FIG. 2 is an elevation observing the side of the guard not seen in FIG. 1.

FIG. 3 is a section on the line 3 3 of FIG. 1 looking in the direction of the arrows.

FIG. 4 is a cross-section on the line 4-4 of FIG. 3.

FIG. 5 is a view showing fragmentary portions of the journal box and journal with the improved guard in its intended functioning position.

The lbody portion of the guard is denoted by the numeral 6 and it has a straight across top edge, a rounded bottom edge and straight vertical edges. This part is also referred to as a pad and is preferably constructed of urethane. At its center it is provided with a circular journal opening or hole surrounded by `a groove 8 of the shape seen in FIG. 5. Fitted in this groove is the felt or equivalent collar 10, the inner periphery of which is bevelled at 12 to snugly hug the embraced portion of the journal 14. The journal box is denoted at 16 and the grooved portion at 18. Attention is now directed to the U-shaped reinforcing Wire frame having a bight portion 20 embracing the -rounded lower marginal edge portion of the pad and having straight limb portions 22 embracing the straight vertical edges of the pad. The upper ends of the wire are projected laterally and outwardly at 24 and are bent downwardly at 26 to provide attaching and retaining hooks. These hooks assist in holding the seal or guard aptly in place as is evident in FIG. 5. The aforementioned edge binder or border is denoted generally by the numeral 28 and it will be seen that it completely encompasses the marginal edges of the pad or body portion 6 as brought out to advantage in FIG. 3. The inner surfaces of the portions making up the lbinder are adhesively or otherwise attached to the cooperating surfaces of the pad and the coacting portions 20 and 22 of the wire frame are interposed and effectively secured in place between the opposed adhesively connected surfaces.

As a further feature urethane strips or adhesive tapes 30 are provided and these are fastened in place against the front and back or inner and outer surfaces of the shield. It will be noticed in FIGS. 4 and 5 that these tapes are suiciently wide that they bridge and cover the junctional meeting edges of the pad `6 and felt binder respectively.

The obvious purpose of the inner felt ring or collar is to an adequate seal `against the car axle or journal. The urethane foam with urethane lilm coating surfaces form an oil seal and -a cushion to seal out the dust. The wire frame is sprung into the mold during the manufacture so as to cause outward stress which has been found to be necessary in assisting and holding the pad in the box. The over-all shield may be suflciently wide that it is shoved firmly into the groove means and compresses slightly to lassist in keeping its given position. With the added retention properties of the hooks 24 and 26 the shield remains eiectually in its intended position. It will be further noticed that the collar 10 is positioned so that it is nearer to the -rear of the journal box. It is also molded in place at an angle in order to produce a bevelled snug-fitting effect. The wider part, the part of greatest diameter, is the same in diameter as the axle or journal. By using the strips or tapes 30' of urethane foam and gluing the same to both inwardly and outwardly facing sides of the over-all seal provides the desired marginal thickness to increase the over-all efficiency of the guard. By insuring a snug fit of the collar it has been found that burning of the material due to high friction resistance is minimized. It is further clear that vby coating the surfaces of the pad and locating the collar in the groove 8 in the manner seen in FIG. 5, the factor of ilexibility is effectually maintained. The felt binder around the perimeter gives added sealing against dust and oil seepage. Also it has been found that the felt portions retain the oil and the urethane keeps the oil from flowing away from the felt. With the coinstruction shown there is little likelihood of oil overflowing the marginal edge portions of the guard.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A dust guard for use in conjunction with a journal box comprising a shield embodying a body portion having an opening an a median portion thereof to accommodate and permit passage of a journal, a felt collar embedded in said body portion and circumscribing said opening, and attaching and retaining means embodied in said shield and having terminal hooks to facilitate positioning and holding said shield in the journal box, said means comprising a U-shaped reinforcing frame bordering and adjoined with the principal marginal edge portions of said body portion, said frame having a bight portion and duplicate companion limbs, said limbs having end portions projecting beyond the top edge of the body portion and bent laterally and outwardly to form attaching and retaining hooks, and a felt binder completely surrounding the marginal edges of the body portion and secured thereto, the bight portion and limbs of said U-shaped frame being lodged and embedded in position between saidmarginal edges and cooperating portions of said binder.

2. A dust guard for use in conjunction with a journal box comprising a composite shield embodying a body portion constructed from compressibly resilient nrethane and providing a spongy pad, ,said pad having generally fiat inward and outward surfaces, said pad hav,- ing straight vertical edges and a curvate bottom, a substatnially Ushaped wire reinforcing frame `having a bight portion and complemenetal limbs joined by said bight -portion, said bight portion embracing the curvate bottom portion of the pad and the limbs extending lengthwise along the median part of the vertical edges of `the pad, the upper ends of said limbs being bent laterally outward and downward and providing attaching and retaining hooks, the entire marginal edges of said pad being surrounded by a felt binder the complemental portions of which are adhesively joined to the complemental edge portions of the pad all the way around, said wire frame being interposed between the cooperating edges of the pad and the cooperating encompassing surfaces of the binder, said hooks being cooper-able with the upper corner portions of the felt-bound pad, said pad being cen -trally provided with a -journal opening having a felt collar marginally bordering the opening and secured to the pad.

3. The structure defined in claim 2 and in combination, marginally located adhesive tapes which are flat and relatively narrow and which are adhesively joined to the inward and outward surfaces of the felt binder and completely cover said vsurfaces and the inner marginal edges portions and bridge over the j oint between rthe binder and marginal edge portions of the pad and thus seal and cover said joint.

References Cited Vinn lthe tile of this patent UNITED STATES PATENTS 1,339,599 Garren May 11, 1920 2,100,113 Travis Nov. 23, 19'37 2,122,343 Grece June 28, 1938 2,159,825 VStevens May 23, 1,939 2,714,023 Hennessy July 26, 1 955 2,758,853 Beck Aug. 1,4, 1956 2,793,885 Hoyer May 28, V195,7 2,798,746 Hoyer Iuly' 9, 1957 2,858,792 Wright i Nov. 4, Y1958