US2568015A - Swing - Google Patents

Description

R. G. LOW

Sept. 18, 1951 SWING Filed April 17, 1950 h 2 Kay 649% Low By MAiZb/ 45 R. G. LOW

SWING Sept. 18, 1951 2 Sheets-Shem: 2

Filed April 1'7, 1950 jazz/25a) Kay 655/22 Law Patented Sept. 18, 1951 RoyiGlenn-Low, Minneapolis, Minn.

My invention relates to swing structures and, more specifically; t'o'infants swingsofttlie indoor type adapted to be suspended'from the ceilingor other overlieadstructure.

The primary object of. my invention is the protvision of a swing structure which is capable'of providing, a maximum of"entertainme nt"for the occupant;

' 'Alstill' further object of my invention is the provision of a swing generally resembling an airplane, including wings and propellers and re.- tractable landingwheels.

A stillfurtheri object of my invention is theprovision of an infant's swing'structure offthecla's's described,,which isrelativelyinexpensive to produce, rugged in. construction, simple inoperar tion,,anddurablein u'sez' The above. and still. further objects. and. ad?- vantage of" my invention will" become. apparent from. the following detailed specification,v appended claims, and. attached specification.

Referring to the. drawings, whereinlikeclianact'e'rs. indicate like parts throughout the. severalviewsz Fig 'lii'sap-erspective. view of my novel invention;

Fig, 2,is.a.view in side. elevation;.

mg; 3jis a view. inifrontelevation;

Fig. 41's an enlarged fragmentary. view infront elevationiof. a. portion of the frame of. my? novel devicasomeparts being brokenaway andlsome parts shown in section;

Fig, List-an enlarged sectional. view taken onthe line 5L5YofFig. 4; and

Fig, 6. is an enlargedseotional.detailltakenlon Referring with; greater, particularity to) the drawings, the numeral; l, indicates, .infits; entirety, a.seat portionhaving a reduced forwardly-pro:

.jfecting. straddle tongue 2., side-forming.- members 3;, and, a back member. 4; Secured to opposite sidesiofr the members 3, by means of headed bolts on the like. 5:,are ball-shapedtrunnions 5 which are snugly received within socket. elements 1 rigidly secured to the lower ends of ropesonthe likei-lhadapted to be, secured to the ceiling or other overhead structure not shown. At its front end, the straddle-tongue Eli' -provided with a tubular bearing, 9- formedby.- bending, a.metal, plate; Ill backwardly upon itself. As shown intdetail in Fig. 5, screws. I I retain the. plate Hl.in.p1ace.

A generally upright frame made" up of side frame: members l2 and am intermediate frame memkier: I3, shownas-beingwubular inlform is V pivotallyf connected. intermediate: its upper and lower portions to-the*front end ofthe straddletongne 2 bymeans of a transverse pivot rod- (4 extendingthrough the bearing 9'.- As'shownin Fig: 5 the-rod- M issecured'by-weldingorthe like at-its oppositeends to the-intermediate por tionsof thesideirame members- [23 Preferably and" as shown, the side frame membersl2 are joined at their lower ends to' provide a foot rest [5; andprojectrearwardlyandoutwardly attheir upperendsto'provide spaced grippinghandlesf I 6. Furthermore, when it'is-desi1'able; the element's I 2? l5, and lli 'may be formed from-a singlelen-gthof stock;

' At its lower end; the tubular intermediate frame member'i's'secured by welding or. the like tcr the-forward'sideofthe foot'rest' I5intermedie ateits; ends; as indicated at'i T- and as shown'par ticul'arlyin'Figsz' 4' andi5'; At" its upper end,',the tubular frame-member l3is secured by welding-v or thelike to the-upper ends" ofthe' side frame members l2 by means of: connecting:bars H? (see particularly Fig; 3) At its' intermediateportion, the tubular frame member-is provided with" an elongated transversely-extended: slot l9 which extends'therethrough: A pair ofarms 20' arepiv otallysecured intermediate their ends, as-"indieated at 21-, oneeach to the intermediate-portions of side frame memberslfii' The inner ends of'the arms 20 are reduced,- as indicated at 22; and are provided with opposed flat contacting surfaces 23': B'yreference-particularly to 'FiQ'SL'J-fifid. 4, it will be seen that the=reduced ends 22 of the arms 20 are snugly slidably received in face-toface relationshipwithin the slot l -for limited vertical movements; The outer-ends of the arms 20- are provided with wheels-24 preferably rubber tire-equipped.-

The tubular intermediate-framemember I3'is closed at its bottom; as" indicated at 25'. In the lower portion of the tubular member I3; inter;- posed between the closed bottom: 25; and the: crossed reduced ends 22;, is a coil compression sprin'glzfiwhich yieldingly biases the reduced endportions. 22. to the. upper limits. of. theslot [9", as shown. particularly. in .Fig. 4, ,whereby. to. position. the. wheels 24 at a. level. below. the. frame members l2landl31andthe foot rest. l5. Initis upper.- end, the. tubular-intermediate.frame. member 134s provided withlarplunger 21. The upper end portion 21a ofttheplunger 21. is=bentatsube stantially right. angles to the axis; of the; meme ben 23. and projects outwardly through. and; isslidably received within. a: longitudinallyextendedv bayonet: slot- 28; having the; singularly-- disposed portion 29 at its lowenxendr, Asl'shown particularly in Fig. 2, a mounting bracket or plate 30 is secured to the upper ends of the frame members I2 and I3. A transversely-extended wing member 3| is secured by means of screws or the like 32 to the frame member 30 (see Fig. 3). A pair of simulated motor mountings 33 project forwardly from the leading edge of the wing member 3| in laterally-spaced relationship. Mounted for rotation to each of the members 33 is a propeller 34 which will be rotated by theair upon movement through the air in opposite directions, as the swing is put into operation. To suspend the forward end of the swing, I provide a pair of rope members 35 which preferably extend through spaced openings 36 in the wing member 3|. I The looped lower ends 31 of said ropes are loosely received within eyes 38 welded or otherwise rigidly secured to the lower portion's'of' the side frame members i2.

For proper operation'jof my novel structure, the rope members 8 and 35 are secured to a ceiling or otherwise a overhead supporting structure not shown, so that the seat 1 is in a substantially horizontal position with the wheels 24 just engaging the floor or other surface over which the swing is to be operated. Then, as

swinging movements are imparted to the swing, the wheels 24 make contact with the floor'sufiiciently to cause pivotal movements of the connected frame members [2 and I3 about the pivot rod I4. These movements are indicated by dotted lines in Fig. 2. Furthermore, the wheels 24 are caused to be pushed upwardly slightly to absorb any shock which would otherwise be imparted thereto. frame about the pivot rod l4, together with the lifting movements of the wheels 24, allows a great deal of action and amusement for the occupant, with complete freedom from breakage.

Furthermore, when it is desired to retract the.

The pivot movements of the ,wheels 24 upwardly from the full line position of Fig. 3 to the dotted line position thereof, the

vangularly-disposed end 21a of the plunger 21 is moved downwardly and angularly sideways to engage the portion 29 of the bayonet slot 28.

My device has been thoroughly tested and found ,to be thoroughly satisfactory for the accomplish- .ment of the above objects; and, while I have shown a preferred embodiment of my invention, it should be obvious that the same is capable of modification without departure from the scope of the appended claims.

. What I claim is:

1. In a swing of the class described, an upright frame, a seat having an elongated forwardlyprojecting straddle tongue, means mounting the front end of said tongue to said frame member for pivotal movements of said frame with respect to said seat about a horizontal axis, a wing structure secured to the upper end portion of said frame, handle members on said frame rearwardly'of said wing structure, a pair of spaced supporting ropes secured at their lower ends to the lower end portion of said frame and extending upwardly through spaced openings in said wing structure, a pair of supporting ropes secured at their lower end portions to said seat, said ropes being adapted to suspend said frame and seat in spaced relation to the ground when connected to suitable supporting means, a pair of laterally-spaced retractable landing wheels, and means mounting said wheels on said frame for movements from operative floor-engaging positions below the plane of said frame to inoperative retractive positions above the plane of the bottom of said frame. v

members and an intermediate vertical frame member, a pair of arms pivotally secured intermediate their ends one each to one of said side frame members, means slidably connecting the inner ends of said arms to said intermediate frame members, wheels adjacent the outer ends of said arms, and means yieldingly biasing said arms toward a position where said wheels project below the level of'said frame.

3. The structure defined in claim 2 in which said side frame members are connected at their lower ends to provide a foot rest and in which the upper ends of said side frame members extend rearwardly to provide said handle members.

4. The structure defined in claim 2 in which the intermediate frame member is tubular and is provided with an elongated slot intermediate its ends, and in which the inner ends of the arms are reduced, the reduced ends of said arms being snugly received within said slot for limited vertical sliding movements, said yielding means comprising a coil spring in said intermediate frame member. 7

5. In a device of the class described, an upright frame, a seat having a forwardly-projecting straddle tongue, means mounting the front end of said tongue to the intermediate portion of said frame for pivotal movements of said frame with respect to said seat about a horizontal axis, a wing structure on the upper end portion of said frame, said frame comprising spaced side frame members and a tubular vertical intermediate frame member, said side frame members being 'joined together at their base to provide a foot rest and extending rearwardly at their upper ends to provide spaced handle members which project rearwardly of said wing structure, the central portion of said intermediate frame member being transversely slotted, a pair of arms pivotally secured intermediate their ends to one each of said side frame members, the inner ends of said arms being snugly slidably received in side-by-side relation within said slot, the outer ends of said arms being provided with wheels,a coil spring within the lower portion of said intermediate frame member yieldingly biasing said arms in a direction to project the wheels below the level of said frame, a plunger in the upper portion of said tubular intermediate frame member engageable with the inner ends of said arms, and means for locking said plunger in a position to maintain the wheels on the outer ends of the arms in a position above the level of the lower end of said frame. ROY GLENN LOW.-

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Date 1-.

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