EP0979623B1 - Automatic spreading umbrella - Google Patents

Automatic spreading umbrella Download PDF

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Publication number
EP0979623B1
EP0979623B1 EP98306395A EP98306395A EP0979623B1 EP 0979623 B1 EP0979623 B1 EP 0979623B1 EP 98306395 A EP98306395 A EP 98306395A EP 98306395 A EP98306395 A EP 98306395A EP 0979623 B1 EP0979623 B1 EP 0979623B1
Authority
EP
European Patent Office
Prior art keywords
hub
handle shaft
top end
assembly
runner
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
EP98306395A
Other languages
German (de)
French (fr)
Other versions
EP0979623A1 (en
Inventor
Max Wang
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
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 Individual filed Critical Individual
Priority to EP98306395A priority Critical patent/EP0979623B1/en
Priority to AT98306395T priority patent/ATE264074T1/en
Priority to DE69823181T priority patent/DE69823181T2/en
Priority to ES98306395T priority patent/ES2217507T3/en
Publication of EP0979623A1 publication Critical patent/EP0979623A1/en
Application granted granted Critical
Publication of EP0979623B1 publication Critical patent/EP0979623B1/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

Definitions

  • the invention relates to an umbrella, more particularly to an automatic spreading umbrella with a handle shaft of considerable strength to prevent bending and.breakage thereof.
  • a first conventional umbrella includes a spring-loaded telescopic handle shaft, a hub mounted on a top end portion of the handle shaft, a rib assembly mounted pivotally at one end to the hub, a lower runner mounted slidably on the handle shaft and movable toward and away from the hub, an upper runner mounted slidably on the handle shaft between the hub and the lower runner, and a stretcher assembly connected operably to the rib assembly and the lower and upper runners.
  • First and second rib spreading coil springs are sleeved on the handle shaft in such a manner that the first rib spreading coil spring is disposed between the hub and the upper runner while the second rib spreading coil spring is disposed between the upper and lower runners.
  • the stretcher assembly When the lower runner is moved away from the hub, such as when folding the umbrella, the stretcher assembly will pull the rib assembly downward to a retracted position, thereby compressing the first and second springs in an axial direction of the handle shaft. When the lower runner is moved toward the hub, the stretcher assembly will push the rib assembly, thereby releasing the first and second springs from compression and consequently permitting the rib assembly to be disposed in a stretched state.
  • first and second springs around the handle shaft prevents the rib assembly from being retracted closely relative to the latter, thereby rendering the size of the folded umbrella to be relatively bulky.
  • a second conventional umbrella includes a spring-loaded telescopic handle shaft, a hub fixed to a top end portion of the handle shaft, a lower runner mounted slidably on the handle shaft, a rib assembly mounted pivotally at one end to the hub, an upper runner mounted slidably on the handle shaft above the lower runner, and a stretcher assembly connected operably to the rib assembly and the upper and lower runners such that the umbrella can be operated so as to dispose the same in unfolded or folded states.
  • a wall surface confining the top end portion of the handle shaft is formed with an axial slot.
  • a slide pin extends through a wall body of the upper runner and the slot so as to limit axial sliding movement of the upper runner on the handle shaft. Formation of the slot weakens the strength of the handle shaft. The longer the slot, the weaker the handle shaft will become.
  • an object of this invention is to provide an automatic spreading umbrella which can overcome the aforementioned disadvantages that are associated with the conventional umbrellas.
  • an umbrella comprises:
  • an automatic spreading umbrella of this invention is shown to include a handle shaft (40), a hub (60), a lower runner (50), a rib assembly (80), a stretcher assembly (100), an upper runner (70), a coiled compression spring (90), and a spreader assembly (200).
  • the handle shaft (40) is a known spring-loaded telescopic handle shaft that has a tubular top end portion (40T) with a distal end surface.
  • a stop member (42) is disposed in the top end portion (40T) and is spaced apart from the distal end surface.
  • the hub (60) is mounted securely on the top end portion (40T) of the handle shaft (40).
  • the lower runner (50) is mounted slidably on the handle shaft (40) and is movable toward and away from the hub (60).
  • the lower runner (50) can be locked releasably on the handle shaft (40) in a known manner so as to retain the umbrella in a folded state (see Fig.2).
  • the lower runner (50) is preferably provided with a radial notch (50R).
  • the handle shaft (40) is provided with a spring-biased catch (40E) at a lower portion thereof to engage the notch (50R) of the lower runner (50), thereby locking the lower runner (50) on the handle shaft (40). Operation of the catch (40E) will result in release of the lower runner (50) from the locked state.
  • the rib assembly (80) is mounted pivotally at one end on the hub (60) in a conventional manner.
  • a canopy (not shown) is mounted on the rib assembly (80) in a manner that is known in the art.
  • the stretcher assembly (100) is connected operably to the rib assembly (80) and the lower runner (50) in a known manner.
  • the upper runner (70) has an enlarged head (72) disposed above the hub (60), and a guide shaft (71) that extends from the enlarged head (72) and into the tubular top end portion (40T) of the handle shaft (40) .
  • the compression spring (90) is sleeved on the guide shaft (71), and has a bottom end (90B) that is disposed in the top end portion (40T) of the handle shaft (40) and that abuts against the stop member (42), and a top end (90T) that extends outwardly of the top end portion (40T) of the handle shaft (40) and that abuts against the head (72) of the upper runner (70).
  • the spreader assembly (200) is connected operably to the rib assembly (80) and the head (72) of the upper runner (70).
  • the stretcher assembly (100) will pull the rib assembly (80) to the folded state, thereby causing the rib assembly (80) to pull the spreader assembly (200) and move the head (72) of the upper runner (70) toward the hub (60) and compress the compression spring (90).
  • the lower runner (50) can be locked on the handle shaft (40) at this time.
  • the compression spring (90) expands and pushes the upper runner (70) away from the hub (60).
  • the spreader assembly (200) then pulls the rib assembly (80) to a stretched state, as best shown in Figure 1, thereby pulling the stretcher assembly (100) to move the lower runner (50) toward the hub (60).
  • the stop member (42) can be a pin which extends through a radial hole formed through the top end portion (40T) of the handle shaft (40). Alternatively, the stop member (42) can be formed integrally with the top end portion (40T).

Landscapes

  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Liquid Crystal (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Paper (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

An umbrella includes a handle shaft (40) has a tubular top end portion (40T) with a distal end surface and a stop member (42) disposed in the top end portion (40T) and spaced apart from the distal end surface. A hub (60) is mounted on the top end portion (40T) of the handle shaft (40). A lower runner (50) is mounted slidably on the handle shaft (40) and is movable toward and away from the hub (60). A rib assembly (80) is mounted pivotally at one end on the hub (60). A stretcher assembly (100) is connected operably to the rib assembly (80) and the lower runner (50). An upper runner (70) has an enlarged head (72) disposed above the hub (60), and a guide shaft (71) that extends from the enlarged head (72) and into the tubular top end portion (40T) of the handle shaft (40). A compression spring (90) is sleeved on the guide shaft (71) of the upper runner (70), and has a bottom end that is disposed in the top end portion (40T) of the handle shaft (40) and that abuts against the stop member (42), and a top end that extends outwardly of the top end portion (40T) of the handle shaft (40) and that abuts against the head (72) of the upper runner (70). A spreader assembly (200) is connected operably to the rib assembly (80) and the head (72) of the upper runner (70). <IMAGE>

Description

  • The invention relates to an umbrella, more particularly to an automatic spreading umbrella with a handle shaft of considerable strength to prevent bending and.breakage thereof.
  • A first conventional umbrella includes a spring-loaded telescopic handle shaft, a hub mounted on a top end portion of the handle shaft, a rib assembly mounted pivotally at one end to the hub, a lower runner mounted slidably on the handle shaft and movable toward and away from the hub, an upper runner mounted slidably on the handle shaft between the hub and the lower runner, and a stretcher assembly connected operably to the rib assembly and the lower and upper runners. First and second rib spreading coil springs are sleeved on the handle shaft in such a manner that the first rib spreading coil spring is disposed between the hub and the upper runner while the second rib spreading coil spring is disposed between the upper and lower runners. When the lower runner is moved away from the hub, such as when folding the umbrella, the stretcher assembly will pull the rib assembly downward to a retracted position, thereby compressing the first and second springs in an axial direction of the handle shaft. When the lower runner is moved toward the hub, the stretcher assembly will push the rib assembly, thereby releasing the first and second springs from compression and consequently permitting the rib assembly to be disposed in a stretched state.
  • Note that the presence of the first and second springs around the handle shaft prevents the rib assembly from being retracted closely relative to the latter, thereby rendering the size of the folded umbrella to be relatively bulky.
  • A second conventional umbrella includes a spring-loaded telescopic handle shaft, a hub fixed to a top end portion of the handle shaft, a lower runner mounted slidably on the handle shaft, a rib assembly mounted pivotally at one end to the hub, an upper runner mounted slidably on the handle shaft above the lower runner, and a stretcher assembly connected operably to the rib assembly and the upper and lower runners such that the umbrella can be operated so as to dispose the same in unfolded or folded states.
  • It is noted that a wall surface confining the top end portion of the handle shaft is formed with an axial slot. A slide pin extends through a wall body of the upper runner and the slot so as to limit axial sliding movement of the upper runner on the handle shaft. Formation of the slot weakens the strength of the handle shaft. The longer the slot, the weaker the handle shaft will become.
  • Therefore, an object of this invention is to provide an automatic spreading umbrella which can overcome the aforementioned disadvantages that are associated with the conventional umbrellas.
  • It is also known from US-A-5232004 for an umbrella to comprise:
  • a handle shaft having a tubular top end portion with a stop member disposed in the top end portion, a hub mounted fixedly on the top end portion of the handle shaft, a lower runner mounted slidably on the handle shaft below the hub and movable towards and away from the hub, an upper runner disposed slidably on the handle shaft above the hub, a rib assembly mounted pivotally at one end on the upper runner, an intermediate assembly connected operably to the rib assembly and the hub, a stretcher assembly connected operably to the intermediate assembly and the lower runner, and a coiled compression spring having a bottom end that is disposed in the top end portion of the handle shaft and that abuts against the stop member, and a top end that abuts against the upper runner;
    •    whereby, by provision of a further spring and a control device having a resilient retainer slidably held within an elongate slot formed in the handle shaft, when wind pressure acts on an umbrella cloth secured to the rib assembly to tend to lower the rib assembly and the resilient retainer, the elongate slot provides a buffer for allowing a downward movement of the resilient retainer and a folding of the rib assembly to temporarily reduce a, wind-catching area of the umbrella cloth.
  • According to the present invention, however, an umbrella comprises:
  • a handle shaft having a tubular top end portion with a stop member disposed in the top end portion,
  • a hub mounted fixedly on the top end portion of the handle shaft,
  • a lower runner mounted slidably on the handle shaft below the hub and movable towards and away from the hub,
  • an upper runner disposed slidably on the handle shaft above the hub,
  • a rib assembly mounted pivotally at one end on the hub,
  • a stretcher assembly connected operably to the rib assembly and the lower runner,
  • a coiled compression spring having a bottom end that is disposed in the top end portion of the handle shaft and that abuts against the stop member, and a top end that abuts against the upper runner, and
  • a spreader assembly connected operably to the rib assembly and the upper runner,
    •    whereby, when the lower runner is moved downward away from the hub, the stretcher assembly will pull the rib assembly to a folded state, thereby compressing the compression spring whereas, when the compression spring expands and pushes the upper runner upward away from the hub, the spreader assembly will pull the rib assembly to a stretched state, thereby pulling the stretcher assembly to move the lower runner towards the hub;
       the umbrella further comprising:
    • the handle shaft being provided with a spring-biased catch that is disposed below the lower runner and that is biased radially and inwardly; and
    • the lower runner having an outer surface that is formed with a notch, the lower runner being movable downwardly away from the hub to engage the catch with the notch so as to lock the lower runner on the handle shaft, thereby maintaining a folded state of the umbrella.
  • A preferred embodiment of the present invention will now be described with reference to the accompanying drawings, in which:
  • Figure 1 is a schematic fragmentary sectional view of a preferred embodiment of an umbrella of this invention, wherein the canopy is removed for the sake of clarity; and
  • Figure 2 is a schematic fragmentary sectional view of the preferred embodiment in a folded state.
  • Referring to Figures 1 and 2, the preferred embodiment of an automatic spreading umbrella of this invention is shown to include a handle shaft (40), a hub (60), a lower runner (50), a rib assembly (80), a stretcher assembly (100), an upper runner (70), a coiled compression spring (90), and a spreader assembly (200).
  • The handle shaft (40) is a known spring-loaded telescopic handle shaft that has a tubular top end portion (40T) with a distal end surface. A stop member (42) is disposed in the top end portion (40T) and is spaced apart from the distal end surface.
  • The hub (60) is mounted securely on the top end portion (40T) of the handle shaft (40).
  • The lower runner (50) is mounted slidably on the handle shaft (40) and is movable toward and away from the hub (60). The lower runner (50) can be locked releasably on the handle shaft (40) in a known manner so as to retain the umbrella in a folded state (see Fig.2). In the preferred embodiment, the lower runner (50) is preferably provided with a radial notch (50R). The handle shaft (40) is provided with a spring-biased catch (40E) at a lower portion thereof to engage the notch (50R) of the lower runner (50), thereby locking the lower runner (50) on the handle shaft (40). Operation of the catch (40E) will result in release of the lower runner (50) from the locked state.
  • The rib assembly (80) is mounted pivotally at one end on the hub (60) in a conventional manner. A canopy (not shown) is mounted on the rib assembly (80) in a manner that is known in the art.
  • The stretcher assembly (100) is connected operably to the rib assembly (80) and the lower runner (50) in a known manner.
  • The upper runner (70) has an enlarged head (72) disposed above the hub (60), and a guide shaft (71) that extends from the enlarged head (72) and into the tubular top end portion (40T) of the handle shaft (40) .
  • The compression spring (90) is sleeved on the guide shaft (71), and has a bottom end (90B) that is disposed in the top end portion (40T) of the handle shaft (40) and that abuts against the stop member (42), and a top end (90T) that extends outwardly of the top end portion (40T) of the handle shaft (40) and that abuts against the head (72) of the upper runner (70).
  • The spreader assembly (200) is connected operably to the rib assembly (80) and the head (72) of the upper runner (70).
  • When the lower runner (50) is moved away from the hub (60), such as when disposing the umbrella in the folded state as shown in Figure 2, the stretcher assembly (100) will pull the rib assembly (80) to the folded state, thereby causing the rib assembly (80) to pull the spreader assembly (200) and move the head (72) of the upper runner (70) toward the hub (60) and compress the compression spring (90). The lower runner (50) can be locked on the handle shaft (40) at this time.
  • When the lower runner (50) is released from the locked state, the compression spring (90) expands and pushes the upper runner (70) away from the hub (60). The spreader assembly (200) then pulls the rib assembly (80) to a stretched state, as best shown in Figure 1, thereby pulling the stretcher assembly (100) to move the lower runner (50) toward the hub (60).
  • The stop member (42) can be a pin which extends through a radial hole formed through the top end portion (40T) of the handle shaft (40). Alternatively, the stop member (42) can be formed integrally with the top end portion (40T).
  • Note that no axial slot is formed through a wall body that confines the top end portion of the handle shaft so that the rigidity and strength thereof are not affected. The object of the invention is accordingly achieved.

Claims (1)

  1. An umbrella comprising:
    a handle shaft (40) having a tubular top end portion (40T) with a stop member (42) disposed in the top end portion (40T),
    a hub (60) mounted fixedly on the top end portion (40T) of the handle shaft (40),
    a lower runner (50) mounted slidably on the handle shaft (40) below the hub (60) and movable towards and away from the hub (60),
    an upper runner (70) disposed slidably on the handle shaft (40) above the hub (60),
    a rib assembly (80) mounted pivotally at one end on the hub (60),
    a stretcher assembly (100) connected operably to the rib assembly (80) and the lower runner (50),
    a coiled compression spring (90) having a bottom end (90B) that is disposed in the top end portion (40T) of the handle shaft (40) and that abuts against the stop member (42), and a top end that abuts against the upper runner (70), and
    a spreader assembly (200) connected operably to the rib assembly (80) and the upper runner (70),
       whereby, when the lower runner (50) is moved downward away from the hub (60), the stretcher assembly (100) will pull the rib assembly (80) to a folded state, thereby compressing the compression spring (90) whereas, when the compression spring (90) expands and pushes the upper runner (70) upward away from the hub (60), the spreader assembly (200) will pull the rib assembly (80) to a stretched state, thereby pulling the stretcher assembly (100) to move the lower runner (50) towards the hub (60);
       the umbrella further comprising:
    the handle shaft (40) being provided with a spring-biased catch (40E) that is disposed below the lower runner (50) and that is biased radially and inwardly; and
    the lower runner (50) having an outer surface that is formed with a notch (50R), the lower runner (50) being movable downwardly away from the hub (60) to engage the catch (40E) with the notch (50R) so as to lock the lower runner (50) on the handle shaft (40), thereby maintaining a folded state of the umbrella.
EP98306395A 1998-08-11 1998-08-11 Automatic spreading umbrella Expired - Lifetime EP0979623B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98306395A EP0979623B1 (en) 1998-08-11 1998-08-11 Automatic spreading umbrella
AT98306395T ATE264074T1 (en) 1998-08-11 1998-08-11 AUTOMATICALLY OPENING SCREEN
DE69823181T DE69823181T2 (en) 1998-08-11 1998-08-11 Automatic opening screen
ES98306395T ES2217507T3 (en) 1998-08-11 1998-08-11 AUTOMATIC OPENING UMBRELLA.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98306395A EP0979623B1 (en) 1998-08-11 1998-08-11 Automatic spreading umbrella

Publications (2)

Publication Number Publication Date
EP0979623A1 EP0979623A1 (en) 2000-02-16
EP0979623B1 true EP0979623B1 (en) 2004-04-14

Family

ID=8234999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98306395A Expired - Lifetime EP0979623B1 (en) 1998-08-11 1998-08-11 Automatic spreading umbrella

Country Status (4)

Country Link
EP (1) EP0979623B1 (en)
AT (1) ATE264074T1 (en)
DE (1) DE69823181T2 (en)
ES (1) ES2217507T3 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548222A (en) * 1984-02-16 1985-10-22 Day San Tong Full-automatic umbrella
AU632448B2 (en) * 1991-07-26 1992-12-24 Day, Sheng-Tong Lightly operable fully automatic umbrella
US5247955A (en) * 1992-08-17 1993-09-28 Wu Woh Wen Ergonomically operating automatic umbrella
US5232004A (en) * 1992-09-21 1993-08-03 Wu Woh Wen Automatic umbrella having wind-resistant buffer effect
US5361792A (en) * 1994-05-03 1994-11-08 Lin Chung Kuang Reliably operated automatic umbrella with upwardly and downwardly thrusted push button
US5533541A (en) * 1995-05-16 1996-07-09 Cheng; Jonathan Automatic umbrella with multiple operation modes

Also Published As

Publication number Publication date
EP0979623A1 (en) 2000-02-16
DE69823181D1 (en) 2004-05-19
ATE264074T1 (en) 2004-04-15
ES2217507T3 (en) 2004-11-01
DE69823181T2 (en) 2005-01-27

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