US3729012A - Self-closing umbrella - Google Patents

Self-closing umbrella Download PDF

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Publication number
US3729012A
US3729012A US00109307A US3729012DA US3729012A US 3729012 A US3729012 A US 3729012A US 00109307 A US00109307 A US 00109307A US 3729012D A US3729012D A US 3729012DA US 3729012 A US3729012 A US 3729012A
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US
United States
Prior art keywords
stick
spring
umbrella
crown
sections
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
US00109307A
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English (en)
Inventor
H Weber
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.)
KNIRPS INTERNATIONAL A GERMAN CORP GmbH
Original Assignee
Telesco Brophey Ltd
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
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Publication of US3729012A publication Critical patent/US3729012A/en
Assigned to KNIRPS INTERNATIONAL GMBH, A GERMAN CORP. reassignment KNIRPS INTERNATIONAL GMBH, A GERMAN CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KNRIPS CANADA INC.
Assigned to KNIRPS CANADA INC. reassignment KNIRPS CANADA INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: KNIRPS CANADA INC. KNIRPS CANADA LTD./LTEE
Assigned to KNIRPS CANADA LTD.- KNIRPS CANADA LTEE reassignment KNIRPS CANADA LTD.- KNIRPS CANADA LTEE CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: TELESCO BROPHEY LIMITED
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
    • A45B25/006—Automatic closing devices

Definitions

  • a self-closing umbrella wherein there are two telei Foreign Apphcatmn pnonty Data scopic stick portions, a crown at the end of one stick 7 portion with the dome ribs hinged thereto, a seconda- Jun. 24, I970 (Jermany ..P 20 ()3 250., y Crown fixed to the free end of the other telescopic 52 us. c1 ..135/25, 135/22 Stick Pmtioh, runner adapted Slide the 1511 11m. c1. ..A45b 19/00 Stick Portion with Stretcher means extending to the ⁇ 58] Field of Search ..135/20 20 dome ribs and Struts hinged to the stretcher means and to the second crown.
  • a tension spring is arranged I 56] References Cited between the two telescopic stick portions so that when the umbrella stick is telescoped together, the dome UNITED STATES PATENTS ribs are opened and the tension spring is loaded. 3,003,508 10/1961 Bremshey "1135/24 x when the Spring is released the telescopic Stick 2,221,288 11 1940 Okun 135/25 R tends to its fullest extent and the dome ribs are 2,816,560 12/1957 Wiister...
  • the present invention relates to a self-closing umbrella and more particularly to an umbrella having a two-piece telescopic stick.
  • a compression spring is used as a means for storing the energy to open and close the umbrella.
  • a compression spring is not axially stable and therefore results in power-consuming friction on the walls of the stick.
  • a compression spring is also of a disadvantage in that the cross section is increased when it is compressed.
  • a construction in accordance with the present invention includes an umbrella having at least two telescopic stick members, one telescopic into the other, a crown on the first stick portion, dome ribs hinged to the crown, a runner slidable on the other stick portion, stretcher means hinged to the runner and to the dome ribs and a secondary crown fixed to the other stick portion and strut means hinged to the secondary crown and to the stretcher means, a tension spring associated between the two telescopic stick portions, such that when the telescopic stick is closed to its furthest extent, the secondary crown is adjacent a first-mentioned crown and the dome ribs are open to an umbrella open position and the tension spring is loaded; release means for releasing the tension spring thereby causing the umbrella stick portions to extend to their fullest extend and the dome ribs close on the stick.
  • An umbrella of this kind has the advantage of a onehanded operation.
  • the tip of the umbrella stick is placed against a solid abutment and pressure is provided at the handle end of the umbrella to telescope the stick together to its shortest extent.
  • This causes the dome ribs of the umbrella to open and the tension spring to be loaded.
  • the catch means are provided which keeps the stick portions telescoped together.
  • the tension spring causes the umbrella stick to extend to its longest axial extent and the dome ribs to pivot back onto the stick in an umbrella closed position.
  • the release is in the form of a movable sleeve at the handle end of the stick.
  • the end of the tension spring nearest the crown of the umbrella is connected to a rod which extends within the umbrella stick and is fixed to the other umbrella stick at the handle end.
  • the other end of the tension spring is connected to the first telescopic stick to which the crown is attached.
  • a sliding member which is adapted to be engaged by the catch means when the umbrella sticks are collapsed together.
  • the sliding member is provided with an annular groove which is engaged by locking balls in the catch means at the handle end of the umbrella stick.
  • FIG. I is a schematic view of an umbrella without the covering material showing the telescopic stick in its fullest extent and the dome ribs closed on the stick;
  • FIG. 2 is a fragmentary axial cross section taken through the umbrella stick, the umbrella being in the same position as in FIG. 1;
  • FIG. 3 is a fragmentary longitudinal cross sectional view of the umbrella when the umbrella stick is telescoped together to its shortest extent and the dome ribs are in their open position.
  • the self-closing umbrella has an umbrella stick 1. Dome ribs 2 are hinged to the main crown 4 of umbrella stick 1. Stretcher members 6 extend from runner 5 to support dome ribs 2 and are hinged thereto at 7. Struts 8 run from stretcher members 6 and are hinged to a secondary crown 9. The handle is marked 3.
  • Umbrella stick 1 comprises a tube 10 mounting main crown 4 and tube 11 fixed to the handle.
  • Tube 10 is smaller in diameter and telescopes into tube 11.
  • the secondary crown 9 is fixed to the end of the tube 11. Both tubes are preferably cylindrical.
  • tip 12 In order to open the umbrella, tip 12 is placed against an abutment, for example the ground 13. Pressure is exerted in the direction of arrow x (FIG. 1), the umbrella stick is telescoped together and the energy-storing spring, in the form of tension spring 14, is loaded. This operation causes the secondary crown 9 to attain a position adjacent the crown 4 and forces the dome ribs 2 to open.
  • This spring 14 is within umbrella stick tube 10.
  • the upper end of this spring encloses a sliding core 15 connected to the end coil spring 14.
  • the core 15 has a recess 16, into which'the upper end of a rod 17 is inserted and fixed.
  • Rod 17 passes centrally through the umbrella stick 1 to another core 18 fixed in tube 11.
  • tension spring 14 is connected to a sliding member 19 which defines an axial passage 20. As seen in the direction of the umbrella crown, the sliding member is stepped. Stepped part 21 is screwed into the final coils of the tension spring 14. Sliding member 19 has a shoulder 22. Under the action of spring 14, lower edge 23 oftube l rests upon shoulder 22.
  • sliding member 19 fulfills another function. It is also a part of the locking mechanism. To this end, sliding member 19 has an annular groove 24 in its surface, located on a section 25 of sliding member 19 which tapers towards handle 3. Annular groove 24 cooperates with locking balls 26, the latter are located in openings 27, of suitable cross section in tube 1 1.
  • dome ribs 2 When dome ribs 2 are closed and the spring 14 is unloaded, locking balls 26 are supported by a filler member 28 which also slides on rod 17.
  • the filler member has a section 29 of smaller diameter and stepped shoulder 30 abuts against balls 26 which in this case is acting as a stop for the member 28.
  • the filler member 28 is spring loaded in a direction towards the tip of the umbrella stick 1; the spring being marked 31.
  • One end of the spring 31 enters a recess 33 in this filler member 28 forming a shoulder 32, while the other end rests on core 18.
  • Spring 31, a compression spring moves on rod 17.
  • the larger diameter of sleeve 34 is grooved at right angles to the axis of the stick.
  • a twostage annular recess 39 is defined serving to control the locking balls 26.
  • Smaller diameter stage 40 supports balls 26 when tension spring 14 is loaded (FIG. 3) while larger diameter stage 41 assumes this function when the spring 14 is unloaded (FIG. 2). Since sleeve 34 is spring loaded in the locking direction, the transition from stage 41 to stage 40 is automatic as soon as annular groove 24 reaches the plane of locking balls 26.
  • An umbrella frame including a dome and at least a two-piece telesco ic stick comprising first and second tubu ar sections, ock means operatively connected to said sections for retaining said sections in telescoped relation, a tension spring inside said stick sections and being loaded when said sections are telescoped together, the force of said spring, upon release of said lock means which holds the sections of the stick in telescoped relation, producing closing movement of the frame dome, the first stick section including a crown, an end of the spring toward the crown being attached to a rod projecting the first stick section toward the crown, another end of the spring engaging a slidable part movable in the stick, a lower edge portion of the first stick section engaging said slidable part and said part including an axial opening for passage of the rod, said slidable part including locking recess means defined in a surface portion for accomodating locking ball means; and locking ball means in said second stick section for engagement in said locking recess means.
  • An umbrella frame according to claim 1 characterized in that a filler part movable axially against the action of the spring when the slidable part abuts it, is operatively associated with the locking ball means.
  • An umbrella frame according to claim 1 characterized in that the locking ball means is surrounded by an external sleeve slidable on the second stick section and operative as a release grip, said sleeve having a two-stage annular recess for controlling the locking ball means, and being spring-loaded in a locking direction.
  • An umbrella frame according to claim 1 characterized in that the rod passes through the filler part and through a filler part spring.

Landscapes

  • Walking Sticks, Umbrellas, And Fans (AREA)
US00109307A 1970-01-24 1971-01-25 Self-closing umbrella Expired - Lifetime US3729012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003250 1970-01-24

Publications (1)

Publication Number Publication Date
US3729012A true US3729012A (en) 1973-04-24

Family

ID=5760469

Family Applications (1)

Application Number Title Priority Date Filing Date
US00109307A Expired - Lifetime US3729012A (en) 1970-01-24 1971-01-25 Self-closing umbrella

Country Status (3)

Country Link
US (1) US3729012A (Direct)
CA (1) CA940002A (Direct)
DE (1) DE2003250B (Direct)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045926A (en) * 1974-08-26 1977-09-06 Gibbs Louis L Easily erected roof structure for modular buildings
US5232004A (en) * 1992-09-21 1993-08-03 Wu Woh Wen Automatic umbrella having wind-resistant buffer effect
US5309933A (en) * 1992-03-30 1994-05-10 Hisao Nagai One-hand openable and closable umbrella
US5318067A (en) * 1993-08-11 1994-06-07 Day Sheng Tong Simplified fully automatic umbrella
US5626161A (en) * 1996-04-29 1997-05-06 Fu Tai Umbrella Works, Ltd. Multiple-fold automatic umbrella with simplified reliable control means
US6273112B1 (en) * 2000-03-20 2001-08-14 Yuji Sumida Extendable stick
USD744742S1 (en) * 2013-11-05 2015-12-08 Ching-Chuan You Umbrella stick

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221288A (en) * 1940-04-10 1940-11-12 American Folding Umbrella Corp Folding umbrella
DE879457C (de) * 1941-08-25 1953-06-11 Kortenbach & Rauh Kg Verkuerzbarer Schirm
US2816560A (en) * 1956-05-23 1957-12-17 Wuster Heinrich Self-closing umbrella frame
US2917060A (en) * 1958-02-17 1959-12-15 Finkel Umbrella Frame Company One-hand opening and closing umbrellas
US3003508A (en) * 1956-07-11 1961-10-10 Bremshey & Co Self-closing umbrellas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221288A (en) * 1940-04-10 1940-11-12 American Folding Umbrella Corp Folding umbrella
DE879457C (de) * 1941-08-25 1953-06-11 Kortenbach & Rauh Kg Verkuerzbarer Schirm
US2816560A (en) * 1956-05-23 1957-12-17 Wuster Heinrich Self-closing umbrella frame
US3003508A (en) * 1956-07-11 1961-10-10 Bremshey & Co Self-closing umbrellas
US2917060A (en) * 1958-02-17 1959-12-15 Finkel Umbrella Frame Company One-hand opening and closing umbrellas

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045926A (en) * 1974-08-26 1977-09-06 Gibbs Louis L Easily erected roof structure for modular buildings
US5309933A (en) * 1992-03-30 1994-05-10 Hisao Nagai One-hand openable and closable umbrella
US5232004A (en) * 1992-09-21 1993-08-03 Wu Woh Wen Automatic umbrella having wind-resistant buffer effect
US5318067A (en) * 1993-08-11 1994-06-07 Day Sheng Tong Simplified fully automatic umbrella
US5626161A (en) * 1996-04-29 1997-05-06 Fu Tai Umbrella Works, Ltd. Multiple-fold automatic umbrella with simplified reliable control means
US6273112B1 (en) * 2000-03-20 2001-08-14 Yuji Sumida Extendable stick
USD744742S1 (en) * 2013-11-05 2015-12-08 Ching-Chuan You Umbrella stick

Also Published As

Publication number Publication date
DE2003250C2 (Direct) 1973-10-11
DE2003250B (de) 1971-09-30
CA940002A (en) 1974-01-15

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AS Assignment

Owner name: KNIRPS CANADA LTD.- KNIRPS CANADA LTEE, STATELESS

Free format text: CHANGE OF NAME;ASSIGNOR:TELESCO BROPHEY LIMITED;REEL/FRAME:004187/0408

Effective date: 19760505

Owner name: KNIRPS CANADA INC., STATELESS

Free format text: MERGER;ASSIGNOR:KNIRPS CANADA INC. KNIRPS CANADA LTD./LTEE;REEL/FRAME:004187/0404

Effective date: 19801009

Owner name: KNIRPS CANADA LTD.- KNIRPS CANADA LTEE

Free format text: CHANGE OF NAME;ASSIGNOR:TELESCO BROPHEY LIMITED;REEL/FRAME:004187/0408

Effective date: 19760505

Owner name: KNIRPS CANADA INC.

Free format text: MERGER;ASSIGNOR:KNIRPS CANADA INC. KNIRPS CANADA LTD./LTEE;REEL/FRAME:004187/0404

Effective date: 19801009

Owner name: KNIRPS INTERNATIONAL GMBH, WEYERSTRASSE 277, D-565

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KNRIPS CANADA INC.;REEL/FRAME:004163/0425

Effective date: 19830713