US3455312A - Foldable umbrella frame - Google Patents

Foldable umbrella frame Download PDF

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Publication number
US3455312A
US3455312A US737555A US3455312DA US3455312A US 3455312 A US3455312 A US 3455312A US 737555 A US737555 A US 737555A US 3455312D A US3455312D A US 3455312DA US 3455312 A US3455312 A US 3455312A
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US
United States
Prior art keywords
auxiliary
umbrella
stays
runner
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US737555A
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English (en)
Inventor
Gunter Vogel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kortenbach and Rauh KG
Original Assignee
Kortenbach and Rauh KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kortenbach and Rauh KG filed Critical Kortenbach and Rauh KG
Application granted granted Critical
Publication of US3455312A publication Critical patent/US3455312A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/16—Automatic openers, e.g. frames with spring mechanisms
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/06—Umbrella runners

Definitions

  • the umbrella furthermore comprises an auxiliary runner having connected thereto one end of auxiliary stays the other ends of which are respectively pivotally connected to the main stays.
  • spring means having one portion connected to the auxiliary runner while another portion acts upon the auxiliary stays so as to continuously urge the same in the umbrella unfolding position for imparting to the outer roof bars an initial outward movement with regard to the inner roof bars.
  • the umbrella stick is composed of two sections telescopically arranged with regard to each other so that one stick section is movable into and out of the other to thereby extend said umbrella stick to its length of use or to collapse the umbrella stick from its length of use.
  • the roof bars consist of inner and outer bar sections which telescopically slide on each other during the telescopic movement of the stick sections.
  • umbrellas of the above-mentioned type have the drawback that when opening the umbrella from its extended position by transmitting the movement of the main runner on the stick to the roof bars, the roof bars are sometimes again pushed together because the roof bars cannot be tilted sufficiently far from the stick in the direction of the opening movement.
  • an object of the present invention to provide an umbrella frame which will bring about that immediately after releasing the stick spring, an unfolding effect is exerted upon the auxiliary stays and thereby through said auxiliary stays upon the roof bars so that when unfolding the umbrella, an undesired telescoping movement of the roof bars into each other will be avoided.
  • FIGURE 1 illustrates a view of an umbrella frame according to the present invention which, however, for purposes of simplicity, shows only two oppositely located roof bars;
  • FIGURE 2 is a view similar to that of FIGURE 1 but shows a modified spring
  • FIGURE 3 represents a section taken along the line IIIIII of FIGURE 1;
  • FIGURE 4 is a section taken along the line IVIV of FIGURE 2;
  • FIGURE 5 shows a modified arrangement according to the invention, in which one spring simultaneously acts upon two adjacent auxiliary stays;
  • FIGURE 6 illustrates an arrangement similar to but differing from that of FIGURE 5 in that a single spring arm has two branches respectively looped around two adjacent auxiliary stays;
  • FIGURES 7 and 8 respectively illustrate in an isometric elevation and top view a further modification of the auxiliary runner with the spring means pettaining thereto.
  • An umbrella frame according to the present invention has the roof bars connected to the main runner by means of stays which in turn are connected to an auxiliary runner by means of auxiliary stays. These auxiliary stays are spring-biased in closed condition of the umbrella so as to urge the roof bars to move in opening direction.
  • the socalled pocket type umbrella frame according to the invention is characterized primarily in that preferably, two op positely located auxiliary stays are, by means of spreading springs arranged on the auxiliary runner, biased so as to be urged to move in opening direction of the umbrella.
  • the spreading springs may have two legs, and their ends may be held by a sleeve slipped onto the auxiliary runner while the Zenith point of said two-legged spring is passed around the auxiliary stay pertaining thereto.
  • the spreading spring may be designed as a onelegged spring, in which instance one end is wound around the auxiliary stay. In this way, the spring force can easily be transmitted to the auxiliary stays. It will be appreciated that when the auxiliary stays are spread apart, also the roof bars are spread apart whereby the umbrella is forced open.
  • the roof bars 2 linked to the umbrella crown 1 are in a manner known per se linked to the main stays 3 which in turn are linked to the main runner 4.
  • Slidably arranged on the umbrella stick 5 is an auxiliary runner 6 which through the intervention of auxiliary stays 7 is linked to the main stays 3.
  • the auxiliary runner 6 is provided with spreading or unfolding springs 8.
  • These springs 8 may be of a two-legged type so that the zenith portion 8a (FIG. 3) of springs 8 will rest and press against the bottom side of auxiliary stays 7 so a to urge the same to pivot in the umbrella opening direction.
  • the free ends 8b of these springs rest against the auxiliary runner 6 and are held by a sleeve 9 slipped thereover.
  • two oppositely located auxiliary stays 7 may be equipped with these springs 8, and usually the provision of two of these springs will sufiice for obtaining the necessary spreading or unfolding effect.
  • FIGS. 2 and 4 corresponds in general to that of FIGS. 1 and 3.
  • one-legged springs 10 are employed which are held on the auxiliary runner 6 by means of a wire 11 serving for fastening the auxiliary stays.
  • One end 10a of spring 10 is wound around the respective adjacent auxiliary stay 7, whereas the other end 10b rests against auxiliary runner 6 and, if desired, may be covered by a sleeve not shown in the drawing.
  • a two-legged spring 8 may, similar to the one-legged spring 10, be held on the auxiliary runner by means of binding wire 11, in which instance the free ends of the two-legged spring would extend downwardly and engage the auxiliary runner 6.
  • the one-legged spring 10 and the two-legged spring 8 act upon an auxiliary stay. It is, however, also possible to design those spring areas which contact the stays somewhat wider so that one spring can act simultaneously upon two or more auxiliary stays. Such a design is shown by way of example in FIG. 5 according to which spring 80 is somewhat U-shaped with the legs tapering toward each other while the portions 8d of spring 80 extend below but in engagement with the auxilary stays 7.
  • FIGS. 7 and 8 respectively showing in isometric elevation and top view a further modified auxiliary runner
  • the runner 6a shown therein is provided with two spreader springs 12 and a sleeve 13 having inside pockets 13a and being slipped over the auxiliary runner 6a.
  • the spreader springs 12 which preferably are metal springs, are shown in relaxed condition and are substantially T-shaped with the ends or arms 12 of the transverse beam of the T slightly angled inwardly so that the cover of the umbrella frame cannot become damaged.
  • auxiliary stays 7 loosely rest upon the arms 12a of the spreader 4 spring 12 when the umbrella frame is closed or nearly closed.
  • only two auxiliary stays 7 rest on each spreader spring 12.
  • An umbrella frame which includes: an umbrella stick, a crown arranged at one end of said stick, a plurality of roof bars having inner and outer roof bar sections telescopically engaging each other with the inner roof bar sections pivotally connected to said crown, a main runner slidably mounted on said stick, a plurality of main stays respectively having the outer end portionsthereof pivotally connected to said outer roof bar sections and respectively having their inner end portions pivotally connected to said main runner, an auxiliary runner slidably arranged on said stick between said'crown and said main runner, a plurality of auxiliary stays respectively having one end portion thereof pivotally connected to said main stays and respectively having the other end portions pivotally connected to said auxiliary runner, and a plurality of spring means respectively having one portion supported by said auxiliary runner so as to be movable therewith and respectively having another portion operatively connected to the respective adjacent auxiliary stay at an area radially outwardly spaced from said umbrella stick, said spring means continuously urging the respective adjacent auxiliary stays to move in the umbrella unfolding
  • each of said spring means is a two-legged spring having a portion interconnecting said legs at one end portion thereof and extending around a portion of the respective adjacent auxiliary stay and having the free leg ends in engagement with said auxiliary runner, and means for holding said free leg ends on said auxiliary runner.
  • each of said spring means is a one-legged spring having.
  • one end portion extending around a portion of the respective adjacent auxiliary stay and having another end portion connected to aid auxiliary runner.
  • each of said spring means is-T-shaped, the free end of the stem of said T-shaped spring means being linked to said auxiliary runner and the free ends of the cross-bar of said T-shaped spring means being at least partially looped around respective adjacent auxiliary stays.
  • An umbrella frame according to claim 1 which includes sleeve means firmly mounted on said auxiliary runner and provided with pockets arranged on the inside of and circumferentially distributed over said sleeve means, and in which said spring means are formed by leaf springs respectively having one end portion firmly located in one of said pockets and having another end portion in engagement with the respective adjacent auxiliary stay.

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  • Holders For Apparel And Elements Relating To Apparel (AREA)
US737555A 1965-03-04 1968-06-17 Foldable umbrella frame Expired - Lifetime US3455312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0055443 1965-03-04

Publications (1)

Publication Number Publication Date
US3455312A true US3455312A (en) 1969-07-15

Family

ID=7227462

Family Applications (1)

Application Number Title Priority Date Filing Date
US737555A Expired - Lifetime US3455312A (en) 1965-03-04 1968-06-17 Foldable umbrella frame

Country Status (5)

Country Link
US (1) US3455312A (OSRAM)
AT (1) AT269399B (OSRAM)
BE (1) BE676532A (OSRAM)
CH (1) CH449865A (OSRAM)
GB (1) GB1096445A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD320111S (en) 1989-05-15 1991-09-24 Ma Mark J S Notch for an umbrella
US20140116481A1 (en) * 2011-04-12 2014-05-01 Zhunan Ma Controllable automatic umbrella unfolding device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US258245A (en) * 1882-05-23 Umbrella
US269846A (en) * 1883-01-02 Egbert geisler
US1072340A (en) * 1912-08-28 1913-09-02 Ernest W Liljegran Tree-protector.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US258245A (en) * 1882-05-23 Umbrella
US269846A (en) * 1883-01-02 Egbert geisler
US1072340A (en) * 1912-08-28 1913-09-02 Ernest W Liljegran Tree-protector.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD320111S (en) 1989-05-15 1991-09-24 Ma Mark J S Notch for an umbrella
US20140116481A1 (en) * 2011-04-12 2014-05-01 Zhunan Ma Controllable automatic umbrella unfolding device
US9004087B2 (en) * 2011-04-12 2015-04-14 Zhunan Ma Controllable automatic umbrella unfolding device

Also Published As

Publication number Publication date
BE676532A (OSRAM) 1966-07-18
AT269399B (de) 1969-03-10
GB1096445A (en) 1967-12-29
CH449865A (de) 1968-01-15

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