US3896833A - Telescopic umbrella - Google Patents

Telescopic umbrella Download PDF

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Publication number
US3896833A
US3896833A US421953A US42195373A US3896833A US 3896833 A US3896833 A US 3896833A US 421953 A US421953 A US 421953A US 42195373 A US42195373 A US 42195373A US 3896833 A US3896833 A US 3896833A
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US
United States
Prior art keywords
crown
shaft
umbrella
stays
spokes
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
US421953A
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English (en)
Inventor
Heinz 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
Priority claimed from DE19722259874 external-priority patent/DE2259874C3/de
Application filed by Telesco Brophey Ltd filed Critical Telesco Brophey Ltd
Application granted granted Critical
Publication of US3896833A publication Critical patent/US3896833A/en
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
Assigned to KNIRPS INTERNATIONAL GMBH, A GERMAN CORP. reassignment KNIRPS INTERNATIONAL GMBH, A GERMAN CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KNRIPS CANADA INC.
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
    • A45B19/00—Special folding or telescoping of umbrellas
    • A45B19/10—Special folding or telescoping of umbrellas with collapsible ribs

Definitions

  • ABSTRACT Foreign Application Priority Data An umbrella having a shaft, a crown at one end and a Dec. 7, 1972 Germany 2259874 plurality of Coil-Spring type Stays extending radially from the stick for forming the cover in a mushroom [52 us. Cl 135/25 R when the umbrella is being elesed and Shortened- [51 Int. (:1.
  • the invention relates to a telescopic umbrella with a telescoping shaft, a main slider, running on the shaft, for bringing about pivoting movement of the spokes, and a system of resilient stays for bringing about folding in the form of a mushroom of the canopy fabric on shortening or telescoping together the umbrella.
  • One aim of the invention is to provide an umbrella of the type described which is reliable in operation and is simple from the point of view of production techniques. Furthermore, the resilient stays arranged in the crown zone should not lead to production of a bulge which would create difficulties as regards insertion into a case, this being achieved despite the arrangement in a manner stable in use of such a spreading system.
  • the present invention consists in a telescopic umbrella with a telescoping shaft, a main slider, running on the shaft, for bringing about pivoting movement of the spokes, and a system of resilient stays for bringing about folding in the form of a mushroom of the canopy fabric on shortening or telescoping together the umbrella, characterized in that the mushroom forming spreading stays extend below the crown from an annular part which has a smaller cross-section than the crown.
  • an umbrella of the type described which has a reliably operating spreading system for automatic mushroom formation in the crown zone.
  • the resilient spreading stays On pressing in the crown and the concomitant displacement of the fabric of the canopy, the resilient spreading stays, which are moved back more and more in a position perpendicular to the positions they occupy when extended; lift the piece of fabric at this position in order finally to mould it into the mushroom shape.
  • These mushroom forming spreading stays extend from an annular 'p'art 'of t'he crown which is smaller in cross-section. They are fixed, anchored as they are, in this material section which is set back with respect to the general or overall breadth of the crown.
  • such a spreading stay possesses the required degree of resistance to permanent kinking even in the case of a long length.
  • the free end of the spreading stays on the canopy there is the possibility of fixing the free end of the spreading stays on the canopy.
  • the corresponding seams can then be arranged even in the case of a slight bending of the spreading stays advantageously adjacent to the seams in the canopy.
  • the terminal spring coil can be bent into the central plane of the spreading stay.
  • Such a construction involves the simultaneous advantage that a relief or rounding, preventing piercing the fabric by the spreading stays is ensured.
  • the ring part attachment can be brought about by injection moulding around the spreading stays, by screwing in of the latter, or by the use of adhesive for attachment.
  • the mushroom spreading means in accordance with the invention can be used on a conventional telescoping umbrella, that is to say, an umbrella in the case of which the spokes and the umbrella shaft itself are made exclusively so as to be capable of being shortened telescopically.
  • a conventional telescoping umbrella that is to say, an umbrella in the case of which the spokes and the umbrella shaft itself are made exclusively so as to be capable of being shortened telescopically.
  • the preferred embodiment described in detail in what follows, shows, such a mushroom spreading means can be used even in a type of umbrella in the case of which telescopically operating spokes are not absolutely essential.
  • FIG. I shows the umbrella in an opened condition in a substantially diagrammatic manner in which the mushroom spreading system in accordance with the invention has been emphasized;
  • FIG. 2 shows the umbrella in an enlarged fragmentary in the opened condition
  • FIG. 2a is a further enlarged cross-section through the auxiliary slider
  • FIG. 3 telescopic umbrella the umbrella in the closed but extended condition
  • FIG. 4 shows the umbrella in the closed or folded and shortened condition, however, in order to show the umbrella more clearly, the support system and the spokes have not yet been brought into the closed or folded condition adjacent to the shaft;
  • FIG. shows a detail of the mushroom spreading means on an enlarged scale
  • FIG. 6 is a view similar to FIG. 5 showing a different type spring
  • FIG. 7 is an enlarged section taken substantially on the plane of line 77 of FIG. 6 showing the spring that has an eliptical cross section.
  • the umbrella is provided with an umbrella shaft 1.
  • the latter consists of two tube parts 2 and 3 which can slide into each other in a telescoping fashion.
  • Both tube parts 2 and 3 have a polygonal and in the present case a hexagonal cross-section.
  • a detent 4 limits the length to which the umbrella shaft can be drawn out.
  • the tube part 2 which runs in the tube part 3 in a manner preventing mutual rotation, is provided at one end with a handle 5.
  • the other end of the umbrella shaft that is to say the tube part 2 with the larger cross-section has the crown 6.
  • spokes or ribs 7 are directed with an even angular distribution.
  • the spokes 7 consist each of the spoke portion 7b proper and a lug 14.
  • the portion A between the lug l4 and the crown 6 is free of spokes.
  • This section A is covered freely by the portion, adjacent to the crown 6, of the canopy fabric.
  • This fabric is anchored at the umbrella crown 6.
  • the canopy fabric 20 is attached to the respective lugs 14, which are drawn in in their center portions so that a sewing on loop or eye 21 is arranged in a fixed manner so that substantially no sliding movement is possible.
  • the canopy fabric 20 is fixed at the ends 23 of the spoke portion 711 of the respective spoke 7.
  • Main slider struts 25 lead to the main slider 24, in the form of part of the support system S supporting each spoke, engages a pivot joint 16.
  • the joint connection on the main slider side is formed by the conventional ring attachment 26.
  • This main slider 24 slides on the umbrella shaft 1. Its central through passage or bore 24' is complementary to the polygonal cross-section of the tube part 3, adjacent to the crown, of the umbrella shaft 1.
  • auxiliary slider 27 is provided on the umbrella shaft, lying between the crown 6 and the main slider 24, an auxiliary slider 27 is provided.
  • This slider also has its bore or hole 27' made to complement the cross-section of the tube part 3 so as to prevent mutual rotation, i.e., relative-rotation on the umbrella shaft 1.
  • auxiliary slider 27 there extends from the auxiliary slider 27 an additional or auxiliary struts 29.
  • additional strut 29 is pivotally connected at 30 in an articulating manner intermediately of the main slider strut 25.
  • An auxiliary or additional link 31 extends from another pivot joint 15 on the lug 14.
  • the link 31 is bent slightly at 32 and lies against the canopy material between the latter and the main slider strut 25.
  • the auxiliary link 31 lies substantially parallel to this strut 25 and it is connected at a distance from the joint 30, which is equal to approximately half the distance between the pivot joints I5 and 16 of the lug 14.
  • This pivot joint or connection point is denote. by reference numeral 33.
  • the additional link is made of steel wire.
  • the end portions adjacent to the joint are flattened.
  • the additional strut 29 is made of U-crossseetion material so that the additional link 31 tits at least partly in this U-shaped space in the collapsed or folded condition of the umbrella frame.
  • the additional link 31 and part of the main slider strut 25 form the longer links, while the lug l4 and part of the additional strut 29 form the shorter links of a link parallelogram P controlling the movements of the mechanism and stabilizing the canopy.
  • the spoke section or rib portion 7b is thus connected with the lug 14 so that the end portion, directed outwards, of the latter, forms a sleeve 34 which closely fits around this spoke portion.
  • the end, projecting into the U-shaped cavity of this lug 14, of the spoke portion is additionally fixed by a dent 35 in the limbs 19 of this part of the lug which has a U-profile or cross-section.
  • the main slider 24 is extended axially adjacent to the ring attachment 26 as a sleeve portion 36' and this portion 36 forms an abutment limit will for the main slider.
  • the abutment limit abut against the lower end face of the auxiliary slider 27, which is provided with a depending sleeve 27" and the slider 27 is limited at its upper end by an annular part 50 with respect to its sliding movement.
  • this annular part 50 carries spreading stays 51 which are arranged with the same angular spacing between them.
  • the spreading stays 51 are arranged in the gaps of the additional or auxiliary struts 29 lying underneath them, an arrangement which offers the advantage that the spreading stays in the collapsed or folded condition of the umbrella frame (see FIG. 4) can come to lie between the component groups formed by the spokes and the struts and accordingly do not lend to an increase in the size of the cross-section of the umbrella frame.
  • the annular part 50 is reduced in cross-section vis-avis the crown 6, something which on the one hand is in line with the desire to achieve the smallest possible frame cross-section in the collapsed condition, and however on the other hand involves the advantage that the position adjacent to the crown at which the canopy fabric 20 is attached still involves a sufficiently large area of canopy fabric arranged between the screw-on top 53 and the portion, greater in cross-section, of the annular part.
  • the spreading stays 51 can be made of helical spring material. These springs are attached at the crown, for example, by injecting plastic material around them, adhesion, or simply by screwing in or the like.
  • the last coil 51' of the free end of the respective helical spring is, as can be gathered from FIG. 5, bent in such a manner that a closed projecting coil portion is obtained which, as a result, avoids damage to the canopy fabric 20.
  • the bent coils 51' can be used as sewing on eyes or loops if anchoring of the ends of the spreading stays on the canopy material should be intended. This sewing on is preferably carried out adjacent to the seams of the canopy fabric.
  • the helical coil of the spring lie in a flexed position, that is to say, they make contact with each other in the extended position of the stays.
  • the helical spring coils, 51 could also be flattened in their cross-section for the purpose of still further reducing the size of the umbrella in its closed position as illustrated in FIGS. 6 and 7 at 51".
  • One of the additional struts 29 has an opening aid in the form of a brake pawl.
  • the latter is set into the U- shaped cavity of this strut and is fixed by drawing in the U-limbs of the strut.
  • the pawl head 54' extends through an opening or window 55 of the auxiliary slider sleeve 27".
  • the pawl head 54 In the folded position, shown in FIG. 3, of the canopy the pawl head 54 will lie against a corresponding wall portion of the tube part 2 with the exertion of a certain gripping or pining force.
  • the main slider 24 can then be displaced towards the crown 6.
  • the auxiliary slider 27 is first held in a non-sliding condition by the braking pawl 54, whose head 54' fits into a detent or recess.
  • the stays 51 can also have a cross-section facilitating holding of the extended position and may also be provided with reinforcements.
  • the main slider strut 25 and the additional strut 29 come out of their position adjacent to the shaft 2, 3 into a position which becomes more and more oblique so that the pawl head 54 is moved out from stick 2.
  • the auxiliary slider 27 is displaced further upwards.
  • the canopy spokes 76 are, in this respect, so driven by the link parallelogram P that they come into the raised position, the unfolded position shown in FIG. 2.
  • the auxiliary slider 27 finally abuts against the annular part 50.
  • the expanded position (see FIG. 2) is held owing to the fact that the head 37' of the locking head 37' fits into a detent or recess Ra (FIG. 4) provided on the tube part 2.
  • the support system S comes into the position shown in FIG. 3.
  • the canopy fabric 20 is arranged substantially over the entire length of the shaft 1 and lies around it without the spreading stays 51 being able to push out the portion A of the canopy adjacent to the crown.
  • the spreading stays are instead folded into a position generally parallel to the shaft axis
  • This umbrella can be placed, like a conventional umbrella, in an umbrella stand. The formation of folds, a tangle, or ball of the canopy material, which would impair drying, for example, is avoided.
  • the spreading stays 51 are folded back in the direction of the shaft. Owing to the fact that the stays lie in the gaps of the additional struts 29 and are furthermore pivoted on a set-back ring part section, the stays 51 will lie in a space-saving manner, in the free angular spaces between two respective such struts so that a very small umbrella cross-section is achieved.
  • a telescopic umbrella including a telescopic shaft, a crown at one end of the shaft, spokes adapted to pivot relative to the crown a cover attached to the crown and the spokes, at least a main runner mounted on the shaft, support means operatively connected between said main runner and said spokes for effecting pivoting movement of said spokes relative to said shaft, and a system of resilient stays on said shaft adjacent said crown for effecting folding of the cover as the umbrella is telescopically collapsed and forming a mushroom shape from the cover adjacent the crown, the improvement in that said resilient stays comprise helical coil springs terminally connected to the shaft beneath said crown, said stays being bendable about a wire forming a coil attached to the shaft, said coil springs being connected to said shaft in an area within an axial projection of said crown and bendable substantially parallel to the shaft when collapsed for providing a minimum cross-section adjacent the crown when the umbrella is collapsed.
  • An umbrella having a telescopic shaft, a crown, at one end of the shaft and having a predetermined area, a plurality of spokes adapted for pivotal movement relative to the crown from an umbrella closed position. wherein the spokes are close to and parallel to the shaft, to an umbrella open position wherein the spokes are spread out from the shaft, a main slider running on the shaft, stretcher means hinged to the runner and the spokes for pivotably moving the spokes, a cover connected between the crown and spokes, resilient stays arranged in a radial plane from the shaft for folding the umbrella cover into a mushroom form when the umbrella is in a closed and shortened position, the resilient 8.

Landscapes

  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Tents Or Canopies (AREA)
US421953A 1972-12-07 1973-12-05 Telescopic umbrella Expired - Lifetime US3896833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722259874 DE2259874C3 (de) 1972-12-07 Verkürzbarer Schirm

Publications (1)

Publication Number Publication Date
US3896833A true US3896833A (en) 1975-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
US421953A Expired - Lifetime US3896833A (en) 1972-12-07 1973-12-05 Telescopic umbrella

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US (1) US3896833A (US20050192411A1-20050901-C00001.png)
JP (2) JPS4988658A (US20050192411A1-20050901-C00001.png)
CA (1) CA990173A (US20050192411A1-20050901-C00001.png)
CH (1) CH563133A5 (US20050192411A1-20050901-C00001.png)
FR (1) FR2209525B1 (US20050192411A1-20050901-C00001.png)
IT (1) IT1006122B (US20050192411A1-20050901-C00001.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297572A (en) * 1993-05-04 1994-03-29 Kuo Cheng M L Improved frames of a folded umbrella
WO1998015203A1 (en) * 1996-10-10 1998-04-16 Innoventions Enterprises Ltd. Collapsible umbrella with reinforced rib structure
CN107411262A (zh) * 2017-07-19 2017-12-01 浙江天玮雨具有限公司 一种缤纷光照闪点环保伞

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704732B1 (fr) * 1993-05-04 1997-08-29 Kuo Cheng Miao Ling Monture pour parapluie pliant.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443772A (en) * 1945-01-18 1948-06-22 Mappin Walter Levison Collapsible umbrella
US3467115A (en) * 1968-02-09 1969-09-16 Robert Brooks Umbrella
US3693643A (en) * 1969-12-18 1972-09-26 Bremshey & Co Collapsible umbrella
US3785388A (en) * 1972-09-21 1974-01-15 Telesco Brophey Ltd Telescopic umbrella

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE682996A (US20050192411A1-20050901-C00001.png) * 1966-06-23 1966-12-23

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443772A (en) * 1945-01-18 1948-06-22 Mappin Walter Levison Collapsible umbrella
US3467115A (en) * 1968-02-09 1969-09-16 Robert Brooks Umbrella
US3693643A (en) * 1969-12-18 1972-09-26 Bremshey & Co Collapsible umbrella
US3785388A (en) * 1972-09-21 1974-01-15 Telesco Brophey Ltd Telescopic umbrella

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297572A (en) * 1993-05-04 1994-03-29 Kuo Cheng M L Improved frames of a folded umbrella
WO1998015203A1 (en) * 1996-10-10 1998-04-16 Innoventions Enterprises Ltd. Collapsible umbrella with reinforced rib structure
US5975099A (en) * 1996-10-10 1999-11-02 Innoventions Enterprises, Ltd. Collapsible umbrella with reinforced rib structure
US6206017B1 (en) 1996-10-10 2001-03-27 Innoventions Enterprises, Ltd. Collapsible umbrella with reinforced rib structure
EP0951223A4 (en) * 1996-10-10 2002-01-23 Innoventions Entpr Ltd FOLDING UMBRELLA WITH REINFORCED WHALE STRUCTURE
US6470899B2 (en) 1996-10-10 2002-10-29 Innoventions Enterprises Ltd. Collapsible umbrella with reinforced rib structure
CN107411262A (zh) * 2017-07-19 2017-12-01 浙江天玮雨具有限公司 一种缤纷光照闪点环保伞

Also Published As

Publication number Publication date
JPS4988657A (US20050192411A1-20050901-C00001.png) 1974-08-24
FR2209525B1 (US20050192411A1-20050901-C00001.png) 1976-10-08
JPS4988658A (US20050192411A1-20050901-C00001.png) 1974-08-24
IT1006122B (it) 1976-09-30
CH563133A5 (US20050192411A1-20050901-C00001.png) 1975-06-30
CA990173A (en) 1976-06-01
DE2259874B2 (de) 1977-03-17
JPS5146461B2 (US20050192411A1-20050901-C00001.png) 1976-12-09
FR2209525A1 (US20050192411A1-20050901-C00001.png) 1974-07-05
DE2259874A1 (de) 1974-06-12

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AS Assignment

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

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 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., 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, STATELESS

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

Effective date: 19760505