US2503032A - Power booster for raising large type umbrellas - Google Patents

Description

April 1950 P. DE SAMELSON 2,503,032

POWER BOOSTER FOR RAISING LARGE TYPE UMBRELLAS Filed Dec. 17, 1948 2 Sheets-Sheet 1 (k $4M, V A7 gNEYs April 4, 1950 IPVDE SAMEL'SON 2,503,032 I POWER BOOSTER FOR RAISING LARGE TYPE UMBRELLAS Filed Deg. 17, 1948 I A 2 Sheets-Sheet 2 ATTORNEYS On the opposite end of the sleeve I3, is thebase I! secured thereto by any suitable means or integrally formed therewith. It will be noted that there is no opening around the periphery of the base Il aligned with the extrusion I so that while the upper portion of the sleeve I3 will pass over the spring catch I2, the bottom of the base I! after passing thereover will come to rest when free on the catch I2 until released. The base I! may be made from any suitable substantially flat surface material in which the sides I8 and I9 are in spaced parallel arrangement as most clearly shown in Figure 3 while on the end opposite the catch I2 are two turned up cars and 2| in spaced parallel arrangement and in close proximity to the stafi Ill which provide the rotatable supports for the cam members 22 and 23 described infra.

Slidable on the sleeve I3 is the rib collar I4 which pivotally supports the ribs 24 in a known manner. Of course, to be slidable on the sleeve I3, the collar 22 is equipped with a longitudinal extrusion coacting with the extrusion I5 in the sleeve. To prevent the sleeve l3 from slipping out of the collar l4 when free to slide along the staff I0, the previously mentioned flange I6 is made with a greater diameter than the diameter of the collar I4.

The cam members 22 and 23 are located adjacent the sides l8 and I9 of the base I! and are keyed by any suitable means to a connecting rod 26 which is rotatably inserted through aligned openings in the aforementioned ears 2|] and 2|. Keyed to the connecting rod 26 is the handle member 21 designed to rotate through some 180 in a line parallel to the center line of the staff Ill. The handle member 2'! is made of suificient length to require a minimum amount of physical effort in operating the cams within the limits of the available space. The peripheries of the cams 22 and 23 are in contact with the base of the collar I4 while being rotated by the handle member 2'! as shown especially in Figure 2 and are so formed that when moved to the uppermost position the collapsible covering I I will be in the fully opened position.

The operation is as follows:

Assuming that it is desired to raise a collapsed umbrella of large type in the sand, the free end of the stafi I El is inserted in the sand with the covering I I in the collapsed or in the partially collapsed position, that is with the bottom of the base I1 of the sleeve I3 supported by the spring catch I2. Generally by swinging the umbrella from side to side with some downwardly exertedforce the stafi I 0 will be suificiently buried withslight effort. With the collapsible covering II in the collapsed position, the sleeve I3 is pushed upwardly until the base I! thereof is resting on the catch I2, Then, the handle member 21 is rotated downwardly which rotates the cam members 22 and 23 upwardly thereby pushing the slidable collar I4 upwardly until the handle member 21 is at rest along the staff I0. Of course, the handle member 21 could be locked in position alongside the staff I 0 if desired. The positioning of the spring catch I2 and the magnitude of the movement of the collar I4 by the cams 22 and 23 is so arranged that the collapsible covering II is moved from a slightly collapsed position attained with little physical efiort to the fully extended position with but slightly more effort when aided by the leverage action provided. The lowering operation is substantially the reversal of the previous steps but it is to be noted that when the handle member 26 is in the up position, that is with the collapsible covering slightly collapsed, and the tension removed from the coverin II, the manual release of the spring catch l2 to completely lower the umbrella is attained with but slight danger of physical mishap.

Referring now in greater detail to the bar lever power. booster. or second embodiment shown in Figures 6 through 11, reference numeral 28 indicates the staff, 29 the slidable base, 30 the rib collar, and 3| the bar lever power booster.

The staff 28 is similar to the previously described staff Ill of the first embodiment. The spring catch 33 is similar to the spring catch I2 of the first embodiment and moved, compared with standard present day construction, further toward the free end of the stafi as in the first embodiment. The slidable base 29 and the rib collar 33, on the other hand, differ from corresponding elements of the first embodiment in several respects. The slidable base 29 may be formed with an extrusion 34 and a base member 35 with no aligned extrusion in order that the base 29 may be releasably held by the catch 33. On the other hand, the base 29 could be made without the extrusion 34, the essentials of the base 29 being suitable provision for releasably supporting the same by the catch 33 and the provision of two outwardly directed ears 36 and 31 for the pivotal support of part of the bar lever mechanism 3| described infra. The ears 3B and 31 have registered openings for the insertion of the pivot pins 38 and 39, respectively. The rib collar 30 is similar to the rib collar I4 of the first embodiment in respect to an extrusion 32 for slipping over the spring catch 33 but differs therefrom by being provided with the ears 45 and 46 in planes parallel with the planes of the previously mentioned ears 36 and 31 but within the latter planes and provided with registered openings for similar pivot pins 41 and 48, both sets of cars forming the pivotal supports for the later described bar lever mechanism 3|.

The bar lever mechanism 3| comprises the handle member and the link members 4| and 42.

The handle member 40 has one cross membe 43 and a second cross member 44, the cross member 43 having a greater width than the cross member 44 although other designs could be used. The ends of the second cross member 44 are pivotally secured between the ears 45 and 46 disposed on the rib collar 30 by the pivot pins 41 and 48. The first cross member; 43in turn is pivotally secured between the ends of the links 4| and 42 by any suitable means: 'The opposite ends of the links 4| and 42 are pivotally secured to the ears 36 and 3'! previously mentioned in connection with the movable base 29 by any pivotal mounting means 38 and 39.

The operation of the second embodiment is as follows:

The previously mentioned beneficial features of the first embodiment are present in the second with the additional advantages of cheapnessof construction, and greater facility in handling "-rwithelessrhazardttohth e33 whichprovides the-basic.supportiorxthe lever- ,the operatorshasrraisedthe movable "base to the v sameness and filtl ieiaoperator. thefsleeve opposite.theacollapsiblemover- With the handle membermc. r lever hetoppo'sitenendnolthe;sleeve being' turned booster 3 t inithe'upposition as shown in Figure outwardl rib 'collarslidable= :on thex sleeve, 6, the umbrella covering is only partially open one "end onithei ribs being pivotedto thezcollar but the movable '-base 29**is' atrest on the catch and thea opposite end :supporting the covering whenaisedya spring catch disposed:- on-"the st'afi coaetingwithe thewex-trusion on the \i sleeve afid adapted t :support the -base of the sleeve releasposition "shown in Figure 6,. a suitable and conablyiwhe lithe covering sisin the:'-partially-*open venient grasping meanshasbeen provided within positioma:cam pivotally disposed on' tha sleeve age operations. It should berrnotedaithatzwhen out-interference-with anyor the other-" mechacacoa'ctingewithtthe rib collar and -adapted to' raise nism. Graspingrthe z'handle 'dllz and pulling it thezrib: colianirieleasably from the partiallly'open downwardly through the position as shown in liposition of the covering when supported' by the Figure--10, the rib collarfifiifl is moved ,upwardly i springitcatchi to the iullyopen-zposition. towardthe' finalgoalsince thdlinks flhand 42am i 59 In amumbrellai havinga staffy apollapsible are revolving downwardly about the pivot points covering, and ribs; a power booster comprising 38 and 39 until the position shown in Figure is a sleeve slidable on the staff, the sleeve having {attained and then reverse their direction of a longitudinal protrusion on one side, a rib colmovement. At the same time, the second cross lar slidable on the sleeve and adapted for the member 44 is moving upwardly about the pivot pivotal connection of one end of the ribs, the rib points 47 and 48 and raising the rib collar 30. collar having a longitudinal protrusion coacting Continuing the movement of the handle member with the longitudinal protrusion on the sleeve, 40 downwardly, as shown in Figure 11, the rib a flange on the end of the sleeve on the side of collar 30 is moved to the designed uppermost the covering, the outside diameter of the flange position with the link members 4! and 42 again being greater than the outside diameter of the moved inwardly as shown in Figure 11. When rib collar and having an opening aligned with collapsing the umbrella, the previously described the coacting protrusions of the sleeve and rib raisingprocedure is reversed permitting thetcolcollar, a base disposed on the opposite end of lapsing of the covering with but slight effort and the sleeve, a spring catch disposed on the staff a minimum of danger to the person of the opcoacting with the protrusions 0n the sleeve and erator. the opening in the flange and adapted to support It is apparent that the specific illustrations the base of the collar at a point of partial opening s O v n iven by y of illustration and of the covering, a cam disposed on either side of not by way of limitation and that the structure th base and adapted to coact with the collar, op-

above described is subject to awide variation and posed supports for the cams disposed on the ,modification without departing from the scope base and substantially 0n the side opposite the or intent of the invention, all of which variations spring catch, the supports having an aligned and modifications are to be included within the opening therethrough, a connecting rod for the scope of the present invention. cams rotatably disposed through the openings, What is claimed is: 44) means securing the cams to the connecting rod 1. In an umbrella having a stafi', a rib collar, and adapted to be rotated thereby, and a handle ribs, a spring catch disposed on the staff, a movmember for the connecting rod and adapted to able base member, said spring catch being rotate the same. adapted to l a ly supp rt he base m m r in 6. In an umbrella having a staff, a rib collar, the partially Op position of the ribs, a lever- 45 ribs, a movable base member, a spring catch disage means between the base member and rib posed on the stafi and adapted to releasably supcollar and adapted to raise the ribs to the fully port the base member in the partially open pogin position. tion of the ribs and means between the base mem- An umbrella Comprising & Stafi, a 11191001131 her and rib collar and adapted to raise the ribs slidable 0n the stall, collapsible covering ribs, one to the fully openposition.

end 0f the s being p d Oh the rib collar, 7. In an umbrella having a staff, a rib collar, a movable base member, a Spring catch disribs, a movable base member, a spring catch disposed on the staff and adapted to releasably supposed on t taff and adapted t releasably portthe base member in the partially open poport the base member in t partially open posisition of the ribs, and leverage means between mm of the ribs and power means between the the base member and uh collar, and adapted to base member and rib collar and adapted to raise support the rib collar releasably in the fully open the ribs to the fully open position position of the ribs.

3. In an umbrella having a staiia collapsible An umbre} compilsmg. m stafi', a collapsible covering, ribs supporting said covering, and ribs, a power booster comprising (in n tn aid rib and a sleeve slidable on the stall, a rib collar slidable q H CO ar suptmr 1 g S i S on the sleeveand within the limits of the ends shdable manually upon F partmuy thereof, means pivotally securing one end of the Open position of Said 00112119511019 covermgi a base member, a leverage system connecting said base ribs to the rib collar, the opposite ends of the ribs being adapted to support the collapsible cov- 6 member and 11b collar and movmg 52nd nb ering, a spring catch disposed on the stall and 1811' from Said Partially 010911 P n 0 a fully adaptedto support the sleeve releasably in the p p d a catch upon said fi r partially open position of the collapsible covering, maintaining Said base member in S Partially and leverage means between the rib collar and Op position.

sleeve and adapted to raise the collapsible cov- In 9. An umbrella comprising in combination a erin r leasably to h fully op n position. stair, a collapsible covering, ribs supporting said 4. In an umbrella having a staff, a collapsible covering, a rib collar supporting said ribs, a slidcovering, and ribs; a power booster comprising a able base member coacting With the rib collar and sleeve slidable on the stall, the sleeve having a slidably manually therewith upon said shaft to longitudinal extrusion on one side, a base on the 7 the partially open position of said collapsible covering, a spring catch disposed in the staff and releasably supporting the slidable base member in the partially open position of the collapsible covering, and a leverage system between the slidable base member and the rib collar and adapted to raise said rib collar from the partial to the fully open position of the collapsible covering, the leverage system comprising a handle member, a first and second cross member disposed at one end of the handle member and protruding on either side thereof, means pivotally securing the ends of the second cross member to the rib collar, link members between the base member and the ends of the first cross member of the handle member, and means pivotally securing the ends of the 15 link members to the ends of the first cross member and to the base member.

PAUL DE SAMELSON.

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

UNITED STATES PATENTS 1 Number Name Date 32,861 Davis July 23, 1861 FOREIGN PATENTS Number Country Date Switzerland Nov. 21, 1910

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