EP0760609B1 - Angetriebener automatischer regenschirm - Google Patents

Angetriebener automatischer regenschirm Download PDF

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Publication number
EP0760609B1
EP0760609B1 EP95920440A EP95920440A EP0760609B1 EP 0760609 B1 EP0760609 B1 EP 0760609B1 EP 95920440 A EP95920440 A EP 95920440A EP 95920440 A EP95920440 A EP 95920440A EP 0760609 B1 EP0760609 B1 EP 0760609B1
Authority
EP
European Patent Office
Prior art keywords
aforesaid
collar
threaded rod
ribs
hollow shaft
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
EP95920440A
Other languages
English (en)
French (fr)
Other versions
EP0760609A1 (de
EP0760609A4 (de
Inventor
Clyde C. Ii Grady
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0760609A1 publication Critical patent/EP0760609A1/de
Publication of EP0760609A4 publication Critical patent/EP0760609A4/de
Application granted granted Critical
Publication of EP0760609B1 publication Critical patent/EP0760609B1/de
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
    • A45B25/14—Devices for opening and for closing umbrellas

Definitions

  • umbrellas which open automatically with the manual release of a catch wherein the compression of a spring causes a hollow member, to which the ribs of the umbrella are attached, to move along a shaft extending through the hollow member. It is also known in the art to provide means for the biasing closed of the umbrella by spring.
  • the umbrellas of the art in general require the movement of the hand from one position to another in order to effect closing or even worse require the use of two hands.
  • the user of such umbrellas which use springs to automatically open and close must remember to compress the spring each time before using the umbrella. Without this prior spring compression such existing umbrellas cannot even be opened, let alone closed.
  • umbrellas previously disclosed in the art which opened and closed by means of electric motors powered by batteries had the disadvantage of being composed of many parts to allow for manual operation of the umbrella should the battery be discharged This large number of parts increased the cost of the umbrella. These umbrellas were also difficult to convert from the automatic to the manual mode because of their complexity.
  • Figure 1 contains a sectional view of the umbrella mechanism in the prior art, which is provided with specific means for conserving battery power, wherein the umbrella ribs are shown in the open or extended position.
  • Figure 2 contains a sectional view of the umbrella mechanism in the prior art of Figure1 wherein the ribs 7 of embodiment 1 are in a closed position.
  • Figure 3 presents in sectional view Detail A of Figure 2.
  • Figure 4 is a sectional view through a simplified embodiment of the powered umbrella 1 comprising the present invention wherein elements of the embodiment depicted in Figures 1, 2 and 3 including threaded nut 26, thumb shaft 25, collar 18, thumb spring 21, arm 22, pin 23 and thumbpiece 24, are replaced with a simplified collar 62, which houses a simplified thumb shafts 67A and 67B, which directly engage improved threaded rod 63 by extension through shaft slot 31.
  • FIG 1 can be seen umbrella ribs 7, held in an open position by umbrella struts 2, wherein umbrella ribs, 7, are pivotally attached to end piece 3, wherein end piece 3, is affixed to hollow shaft 5.
  • Strut 2 is pivotally attached to rib 7, at one end and strut 2, is pivotally attached at its opposite end to collar 18.
  • Ribs 7 are covered by and attached to water repellent fabric 8.
  • FIG. 1 depicts umbrella 1, of the prior art in which the opening and closing of the umbrella 1, is accomplished by the upward and downward movement of a threaded nut 26 which has been attached to collar 18 by means of thumb shaft 25 extending through shaft slot 31, in one piece shaft 5, such that when threaded rod 30, is threadably inserted and rotated the threaded nut 26, and consequently the collar 18, move upward and downward.
  • shaft slot 31 The location and extent of shaft slot 31, is shown in Figure 1 and in the sectional views of the Figures that follow by the absence of crosshatching in the cross-sectional view of hollow shaft 5.
  • the rotating shaft 29, of the bidirectional motor contained in motor housing 27, is attached to threaded rod 29.
  • the motor housing 27, is attached by means of motor support 14, to the handle, 15.
  • the potential energy stored in battery 28 can be used to make, with the movement of position switch 17, to one of its available positions, the drive shaft, 29, to rotate in a given direction causing the upward or downward motion of threaded nut 26.
  • Movement of the position switch 17, to yet another position can be made to effect the rotation in the opposite direction of the drive shaft 29.
  • This causes movement of threaded nut 26, and consequently of collar 18, in a direction opposite to that previously induced.
  • the umbrella can be made to open and close automatically, where the open position of the umbrella is shown in Figure 1 and the closed position is shown in Figure 2.
  • Figure 1 further shows the threaded rod 30, to have an area of upper area of reduced diameter, 19, which has been formed on the rod 30, on its upper most end, wherein this area of reduced diameter is devoid of threads so that even though rod 30 is rotated the threaded nut 26, will not be urged further upward beyond the area 19.
  • the function of this uppermost area of reduced diameter is to allow "unloading" of the electric motor in motor housing 27, when the threaded nut 26, reaches its uppermost position upon opening of the umbrella. It has been found that this improvement does not prematurely discharge the battery 28, and allows the use of a lower torque rating on the motor electric in motor housing 27, and at the same time extends the life of the electric motor in motor housing 27.
  • This lowermost area of reduced diameter 11, serves a function similar to those provided by the uppermost area of reduced diameter 19 with similar benefits.
  • Spring 12 shown in Figures 1 and 2 as attached at its lowermost end to a stationary positioner 13, which in turn fixed in its relative axial position on the rod 30 has been shown to aid in the restarting of the threaded nut 26, on the threaded portion of rod 30, when the threaded nut 26, is starting from the lowermost area of reduced diameter 11.
  • Spring 12 can also be directly attached to the threaded rod 30 or simply allowed to attain the position shown in Figures 1 and 2 by mere gravity.
  • the spring 12 is situated so that it is compressed upon movement of the threaded nut 26 onto the lowermost area of reduced diameter 11, and is of sufficient force to keep threaded nut 26 urged upward toward the threaded portion of rod 30 and hence allows smooth restarting of the threaded nut 26 on the threaded rod 30 when the electric motor in motor housing, 27, is actuated in the direction required to open the umbrella.
  • the threaded rod 30, is shown attached to the one piece shaft 5, by upper bearing 10 and stationary positioner 13 which respectively are fixed in upper support strut 9 and lower support strut 16, affixed to one piece shaft 5, wherein stationary positioner 13 also acts as a lower most bearing.
  • the threaded rod 30 turns freely by virtue of the upper most bearing 10 and lower stationary positioner 13.
  • Drive shaft 29, transfers motive power from the motor contained in motor housing 27, to threaded rod 30, while reinforced motor support 14 insures adequate support of motor housing 27 and attaches it to handle 15.
  • Figure 3 shows in detail how an apparatus consisting of thumb shaft 25, thumbpiece 24, arm 22, pin 23 and thumb spring 21 can be used to attach collar 18 to threaded nut 26. Since thumb shaft 25, threadably inserts into cavity 6 by spring 21, when the battery, 28, expires, thumb shaft 25 can be detached from the threaded nut 26, and the collar 18 actuated manually to open and close the umbrella. Shaft 25 once so detached from threaded nut 26, can be inserted in properly placed holes (not shown) in one piece shaft 5, to manually secure the umbrella in either the open or the closed position. Thus, the umbrella can still be used in the manual mode even if the battery power is expended while it is raining.
  • the threaded rod, 30, be fabricated such that there at least two separate parallel threads which run along its length.
  • the threaded nut, 26, must likewise be fitted with matching parallel threads, of course.
  • These parallel threads are sometimes referred to as multiple leads.
  • the use of multiple leads serves to, by some mechanism, keep the threaded nut, 26, from binding and becoming "cross-threaded” when trying to restart its travel on the threaded rod, 30, from the areas of reduced diameter, 19, and 11, at the uppermost and lowermost ends, respectively, of the threaded rod, 30.
  • motor housing, 27, may contain not only the electric motor itself, but also gearing which increases or decreases the revolutions per minute available from the motor itself in application to motor drive shaft, 29. Said motor housing, 27, may also contain any of various torque limiting devices as known in the art.
  • Figure 4 of the present invention discloses a simplified collar 62 encircled at one end by primary assembly ring 65 and secondary assembly ring 64 and at the alternate end encircled by tertiary assembly ring 66.
  • Simplified collar 62 in a manner analogous to that of collar 18 of Figures 1, 2 and 3 encircles one piece shaft 5 and slides up and down thereon - thereby moving struts 2 which are attached to simplified collar 62, which in turn opens and closes the ribs 7 and canopy 8 attached to struts 2 but not shown in Figure 27.
  • simplified collar 62 houses 60A and 60B which hold pins 67A and 67B against improved threaded rod 63, by extension through shaft slot 31 in one piece shaft 5.
  • Improved threaded rod 63 is attached to drive shaft 29, in a manner analogous to that previously explained for threaded rod 30 in connection with the previous explanation for Figures 1, 2 and 3.
  • the motor housing 27, is attached by means of motor support 14, to the handle, 15.
  • the potential energy stored in battery 28 can be used to make, with the movement of position switch 17, to one of its available positions, the motor drive shaft, 29, to rotate in a given direction causing the upward or downward motion of simplified collar 62.
  • Movement of the switch 17, to yet another position can be made to effect the rotation in the opposite direction of the drive shaft, 29.
  • This causes movement of simplified collar 62, in a direction opposite to that previously induced.
  • the umbrella can be made to open and close automatically, where the open position of the umbrella is shown in Figure 1 and the closed position is shown in Figure 2.
  • thumb levers 61A and 61B rotate about lever pins 69A and 69B, respectively, wherein said lever pins 69A and 69B thereby attach thumb levers 61A and 61B to improved collar 62.
  • thumb levers 61A and 61B protrude through openings 68A and 68B, respectively, in improved collar 62, to contact pins 67A and 67B respectively in such a manner that movement of thumb levers 61A and 61B in the proper direction depresses springs 60A and 60B to move pins 67A and 67B out of contact with improved threaded rod 63 thereby allowing the manual movement of improved collar 62 up and hollow umbrella shaft 5, to manually secure the umbrella in either the open or the closed position.
  • improved threaded rod 63 may take various configurations, the strength and size of springs 60A and 60B are minimized and operation facilitated by improved threaded rod 63 being configured to have at least the double lead configuration shown in Figure 4, wherein the threads of improved rod are manufactured to have a flank angle of zero degrees to formulate what is known to those in the art of making threaded rods as a square-edged thread flight.

Landscapes

  • Walking Sticks, Umbrellas, And Fans (AREA)

Claims (1)

  1. Schirm mit einem Gerüst aus miteinander verbundenen Rippen (7), mit Stoff (8) überzogen, und einem Mittel zum automatischen Öffnen und Schließen der oben genannten Rippen (7) und des Stoffes (8) umfassend:
    einen hohlen Schaft (5), der an den oben genannten Rippen (7) befestigt ist, und dem Stoff (8), wobei der hohle Schaft (5) mit mindestens einem Schlitz (31) versehen ist, der sich über einen Teil seiner Länge erstreckt; eine Gewindestange (63), die sich durch den hohlen Schaft (5) erstreckt; einen Kragen bzw. Ring (62), der entlang der äußeren Oberfläche des genannten hohlen Schafts (5) gleitet, wobei der Kragen (62) mit den Rippen (7) mittels Streben (2) verbunden ist;
    mindestens ein Stift (67A), der an dem Kragen befestigt ist und sich durch mindestens einen Schlitz (31) erstreckt, der in dem hohlen Schaft (5) vorhanden ist; ein in einem Motorgehäuse enthaltener Elektromotor (27), wobei das Motorgehäuse (27) in Bezug auf den hohlen Schaft (5) fixiert ist, wobei die Antriebswelle (29) des Elektromotors im Motorgehäuse (27) mit der Gewindestange (63) verbunden ist;
    eine Batterie (28), die elektrische Energie für den Elektromotor in dem Elektromotorgehäuse (27) liefert; wobei ein Schalter (17) vorgesehen ist, der in einer ersten Position den Fluss der Elektrizität von der oben genannten Batterie (28) regelt in einer Weise, dass die Antriebswelle (29) sich in eine erste Richtung dreht, welche wiederum die Gewindestange (63) dreht, wodurch der Stift (67A), sowie der befestigte Kragen (62) in einer Richtung bewegt wird, die den oben genannten Stoff (8) und die Rippen (7) von der geschlossenen in eine offene Stellung bringt;
    wobei ein Bewegen des genannten Schalters (17) in eine zweite Position den Fluss der Elektrizität von der oben genannten Batterie (28) in einer Weise regelt, dass die Antriebswelle (29) sich in eine zweite Richtung entgegengesetzt zu der ersten Richtung dreht, welche wiederum die Gewindestange (63) dreht und dadurch den Stift (67A) sowie den befestigten Kragen (62) in eine Richtung dreht, die den Stoff (8) und die Rippen (7) in die geschlossene Stellung zurückbringt, dadurch gekennzeichnet, dass
    die Gewindestange (63), die sich durch den hohlen Schaft (5) erstreckt, mit geradkantigen Schraubengängen gebildet ist; der Stift (67A) direkt in die Windungen der geradkantigen Schraubengänge der Gewindestange (63) ohne Ablösung vom genannten Kragen (62) eingreifen kann, wobei nach Auskuppeln des Stiftes (67A) von der Gewindestange mit Windungen mit geradkantigen Schraubengängen (63) der genannte Kragen (62) manuell auf der Länge des hohlen Schaftes (5) auf und ab bewegt werden kann, um den Stoff (8) und die Rippen (7) manuell zu öffnen und zu schließen.
EP95920440A 1994-05-23 1995-05-22 Angetriebener automatischer regenschirm Expired - Lifetime EP0760609B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US24724694A 1994-05-23 1994-05-23
US247246 1994-05-23
PCT/US1995/006027 WO1995031913A1 (en) 1994-05-23 1995-05-22 Simplified powered umbrella

Publications (3)

Publication Number Publication Date
EP0760609A1 EP0760609A1 (de) 1997-03-12
EP0760609A4 EP0760609A4 (de) 1999-01-27
EP0760609B1 true EP0760609B1 (de) 2003-01-29

Family

ID=22934189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95920440A Expired - Lifetime EP0760609B1 (de) 1994-05-23 1995-05-22 Angetriebener automatischer regenschirm

Country Status (4)

Country Link
EP (1) EP0760609B1 (de)
JP (1) JPH10500594A (de)
DE (1) DE69529521D1 (de)
WO (1) WO1995031913A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103876418A (zh) * 2012-12-21 2014-06-25 周金雄 用于全自动开收伞的安全型开关

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL161621A0 (en) 2004-04-26 2004-09-27 Lasies Invest And Entpr Ltd Electrical umbrella and canopy mechanism
TWM336708U (en) * 2008-02-05 2008-07-21 chuan-jin Yang Transmission apparatus of umbrella for opening and closing
NL1036731C2 (en) * 2009-03-19 2010-09-21 Chuan-Chin Yang Operating mechanism for umbrella.
CN105852344B (zh) * 2016-05-31 2017-10-03 刘燕川 一种智能伞
GB201701568D0 (en) 2017-01-31 2017-03-15 Oxford Space Systems Ltd Actuating support member

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213122A (en) * 1988-06-14 1993-05-25 Grady Ii Clyde C Electric umbrella
US5141010A (en) * 1991-09-24 1992-08-25 Richard Muller Automatic umbrella

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103876418A (zh) * 2012-12-21 2014-06-25 周金雄 用于全自动开收伞的安全型开关

Also Published As

Publication number Publication date
EP0760609A1 (de) 1997-03-12
EP0760609A4 (de) 1999-01-27
WO1995031913A1 (en) 1995-11-30
DE69529521D1 (de) 2003-03-06
JPH10500594A (ja) 1998-01-20

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