EP1438906B1 - Umbrella runner with locking device - Google Patents
Umbrella runner with locking device Download PDFInfo
- Publication number
- EP1438906B1 EP1438906B1 EP03250340A EP03250340A EP1438906B1 EP 1438906 B1 EP1438906 B1 EP 1438906B1 EP 03250340 A EP03250340 A EP 03250340A EP 03250340 A EP03250340 A EP 03250340A EP 1438906 B1 EP1438906 B1 EP 1438906B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- runner
- retaining
- umbrella frame
- frame device
- stem
- 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
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- 230000000717 retained effect Effects 0.000 claims abstract description 6
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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
- A45B25/08—Devices for fastening or locking
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B25/00—Details of umbrellas
- A45B25/10—Umbrella crowns
Definitions
- This invention relates to an umbrella frame device, more particularly to an umbrella frame device with a sleeve member which is operable to move a runner between engaging and disengaging positions.
- a conventional umbrella is shown to include an elongate stem with an upper elongate hole in which a spring-loaded stop is provided.
- a runner is sleeved slideably on the stem to support a rib assembly which is mounted on an upper end of the stem. The runner is moveable along the stem between an upper position for stretching the rib assembly and a lower position for collapsing the same. At the upper position, the runner is retainingly supported by the stop.
- An umbrella runner disclosed in U. S. PatentNo. 3,856,032 includes a runner slidable on an umbrella stick, an axially extending sleeve portion having an inner surface in sliding contact with the stick and formed with a recess therein, a hinge pin traversing the recess, and locking means hinged to the pin.
- the locking means includes two separate locking pawls one on either side of the pin, each having an engaging head biased towards the stick by a spring, and a cam member extending on the opposite side of the pin to be engaged by activating means.
- Embodiments of the present invention provide an umbrella frame device which can be operated conveniently and comfortably to spread and collapse a canopy, and which has a simple construction to facilitate assembly.
- the umbrella frame device includes an elongate stem which has an outer surrounding stem surface that extends along and that surrounds an axis in an axial direction.
- the outer surrounding stem surface has an upper end portion on which a canopy is adapted to be mounted, a lower end portion, and a middle portion between the upper and lower end portions.
- a protuberance is disposed on the middle portion adj acent to the upper end portion, extends in the axial direction, and has a slideway thereon.
- the slideway terminates at an upper edge that forms a shoulder with the middle portion.
- the shoulder extends inwardly and radially of the upper edge.
- a tubular runner is sleeved on and is moveable relative to the stem between upper and lower positions respectively for spreading and collapsing the canopy.
- the runner has inner and outer surrounding runner surfaces opposite to each other in radial directions relative to the axis.
- the outer surrounding runner surface has a slot which extends radially through the inner surrounding runner surface.
- the inner surrounding runner surface is moveable along the slideway.
- a retaining member has a retaining end which is disposed to be moveable radially in the slot and which is extendable inwardly of the inner surrounding runner surface to slideably contact the slideway.
- the retaining end is brought to slip over the upper edge so as to be retained on the shoulder when the inner surrounding runner surface is moved along the slideway relative to the axis from a disengaging position which corresponds to the lower position, to an engaging position which corresponds to the upper position.
- the first preferred embodiment of an umbrella frame device is shown to comprise an elongate stem 10, a tubular runner 20 which is sleeved on and which is movable relative to the stem 10 between upper and lower positions for spreading and collapsing a canopy (not shown), and a sleeve member 30.
- the stem 10 has an outer surrounding stem surface 11 which extends along and which surrounds an axis (L) in an axial direction.
- the outer surrounding stem surface 11 has an upper end portion 111 on which the canopy is adapted to be mounted, a lower end portion, and a middle portion 112 between the upper end portion 111 and the lower end portion.
- a pair of arcuate protuberances 113 are disposed on the middle portion 112 adjacent to the upper end portion 111, extend in the axial direction, and respectively have slideways thereon. Each of the slideways terminates at an upper edge that forms a shoulder 13 with the middle portion 112.
- the shoulder 13 extends inwardly and radially of the upper edge.
- the protuberances 113 may be integrally formed with the middle portion 112.
- the protuberances 113 may be formed by punching of the stem 10.
- a limiting protrusion 14 projects outwardly from the upper end portion 111.
- the runner 20 has inner and outer surrounding runner surfaces 25, 21 opposite to each other in radial directions relative to the axis (L).
- the outer surrounding runner surface 21 has a pair of slots 24 which extend radially through the inner surrounding runner surface 25 and which extend downwardly to terminate at lower edge walls 241, respectively.
- the inner surrounding runner surface 25 is movable along the slideways of the protuberances 113.
- a pair of retaining members 22 are formed on the runner 20.
- Each of the retaining members 22 has a fixed end 221 which is integrally connected to the respective lower edge wall 241, a retaining end 222 which is opposite to the fixed end 221 in the axial direction and which has a biasing force that urges the retaining end 222 to move radially and outwardly.
- the retaining end 222 is movable radially in the respective slot 24, and is extendable inwardly of the inner surrounding runner surface 25 to slidably contact the respective slideway.
- the retaining end 222 has an inner protrusion 223 which projects towards the axis (L), and an outer contact bump 224 which extends radially and away from the inner protrusion 223.
- an annular upper limiting member 213 is formed on an upper portion 211 of the runner 20.
- An annular lower limiting member 231 is formed on a lower portion 212 of the runner 20.
- the sleeve member 30 has an inner surrounding sleeve surface which surrounds the outer surrounding runner surface 21, and which is movable relative to the outer surrounding runner surface 21 along the axis (L) .
- the inner surrounding sleeve surface has a cam surface portion 31 which confronts the retaining members 22.
- the cam surface portion 31 extends in the axial direction, and is disengaged from the retaining ends 222 of the retaining members 22 when the runner 20 is in the lower position, as shown in Fig. 2.
- the cam surface portion 31 can depress the outer contact bumps 224 of the retaining ends 222 radially with a friction force that arrests the inner surrounding runner surface 25 in the engaging position, while the sleeve member 30 is held against gravity by the retaining members 22, as shown in Fig. 3.
- the sleeve member 30 has an upper edge wall 32 and a lower edge wall 33 opposite to each other in the axial direction.
- the runner 20 When the sleeve member 30 is operated to move upwardly relative to the stem 10, the runner 20 can be moved upwardly due to the arrangement of the outer contact bumps 224.
- the inner protrusions 223 are then brought to slip over the upper edges of the protuberances 113, respectively, to be retained on the shoulders 13 as a result of depression of the outer contact bumps 224 by the cam surface portion 31 so as to place the inner surrounding runner surface 25 in the engaging position, as shown in Figs 3, thereby spreading the canopy.
- the upward movement of the runner 20 is limited by the limiting protrusion 14.
- the upper edge wall 32 of the sleeve member 30 is limited by the upper limiting member 213 so as to prevent removal of the sleeve member 30 from the runner 20 in the axial direction.
- each of the retaining members 22' is made from a leaf spring having a biasing force, and has a fixed end 221' that is secured to the outer surrounding runner surface 21 of the runner 20 proximate to the lower portion 212 of the runner 20, and a retaining end 222' opposite to the fixed end 221' in the axial direction.
- the retaining end 222' has an outer contact portion which extends radially and outwardly of the outer surrounding runner surface 21 and which is disposed to be depressed by the cam surface portion 31 of the sleeve member 30 against the biasing force such that an inner protrusion 223' of the retaining end 222' can be retained on the respective shoulder 13.
- each of the retaining members 22" is made from a leaf spring having a biasing force, and has a fixed end 221" that is secured to the outer surrounding runner surface 21 of the runner 20 proximate to the upper portion 211 of the runner 20, a retaining end 222" which is opposite to the fixed end 221" in the axial direction.
- the retaining end 222" has an outer contact portion which extends radially and outwardly of the outer surrounding runner surface 21.
- cam surface portion 31" of the sleeve member 30" is gradually inclined upwardly and outwardly relative to the axis (L) so as to depress the outer contact portion against the biasing force when the sleeve member 30" is moved upwardly relative to the outer surrounding runner surface 21.
- a tubular member 15" is integrally formed with a top mount 16" that is provided on the upper end portion 111" of the outer surrounding stem surface 11" of the stem 10", and is sleeved on the upper end portion 111" and the middle portion of the outer surrounding stem surface 11".
- the tubular member 15" is formed with an annular limiting portion 14" that is formed as a shoulder for limiting upward movement of the runner 20.
- the tubular member 15" extends downwardly to terminate at a surrounding bottom edge wall 151", and has a pair of hole confining walls 13", each of which is formed adjacent to the bottom edge wall 151" and each of which extends radially of the axis to confine a hole.
- the hole confining wall 13" has a lower wall portion which serves as the shoulder 13, as described in the previous embodiments. Therefore, the slideways in this embodiment are disposed between the lower wall portion and the bottom edge wall 151".
- each of the retaining members 220 is a ball which has contact and retaining ends that are diametrically opposite to each other.
- the contact end is disposed outwardly of the slot 250 in the runner 200.
- the cam surface portion 310 of the sleeve member 300 is gradually inclined upwardly and outwardly relative to the axis (L) so as to depress the contact end when the sleeve member 300 is moved upwardly relative to the outer surrounding runner surface 201.
- a tubular member 150 similar to the tubular member 15" of the third preferred embodiment, is disposed to sleeve on the upper end portion and the middle portion of the outer surrounding stem surface 110 of the stem 100.
- the tubular member 150 is integrally formed with a limiting ring 140, and a pair of hole confining walls 130, each of which extends radially of the axis (L) to confine a hole.
- the hole confining wall 130 has a lower wall portion which serves as the shoulder 13, as described in the previous embodiments. Therefore, the slideways in this embodiment are disposed downwardly of the lower wall portion.
Landscapes
- Walking Sticks, Umbrellas, And Fans (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
Description
- This invention relates to an umbrella frame device, more particularly to an umbrella frame device with a sleeve member which is operable to move a runner between engaging and disengaging positions.
- A conventional umbrella is shown to include an elongate stem with an upper elongate hole in which a spring-loaded stop is provided. A runner is sleeved slideably on the stem to support a rib assembly which is mounted on an upper end of the stem. The runner is moveable along the stem between an upper position for stretching the rib assembly and a lower position for collapsing the same. At the upper position, the runner is retainingly supported by the stop.
- In view of the fact that the stem of the conventional umbrella frame device has to be provided with the hole to receive the stop, a solid structure was not contemplated for the stem. Due to this inherent limitation of the stem, which is a primary part of the umbrella frame device in terms of strength, it is quite difficult to improve the rigidity of the stem, and hence the durability of the umbrella frame device. Moreover, it is uncomfortable to press an end of the stop for collapsing the rib assembly, which has an acute and rigid surface.
- An umbrella runner disclosed in U. S. PatentNo. 3,856,032 includes a runner slidable on an umbrella stick, an axially extending sleeve portion having an inner surface in sliding contact with the stick and formed with a recess therein, a hinge pin traversing the recess, and locking means hinged to the pin. The locking means includes two separate locking pawls one on either side of the pin, each having an engaging head biased towards the stick by a spring, and a cam member extending on the opposite side of the pin to be engaged by activating means. The activating means includes a coaxial slide member for sliding movement on the sleeve portion of the runner and having an inwardly extending projection to engage alternately the locking pawls for disengaging the engaging head from a respective aperture in the stick. Thus, the slide member is moved down such that the projection presses against the cam member to force the engaging head out of the aperture so as to allow the runner to move downwardly. However, one of the engaging heads will be kept to undesirably drag on the stick by the biasing force of the spring, thereby resulting in difficult movement of the runner relative to the stick.
- Embodiments of the present invention provide an umbrella frame device which can be operated conveniently and comfortably to spread and collapse a canopy, and which has a simple construction to facilitate assembly.
- According to this invention there is provided an umbrella frame device as set out in Claim 1. In the illustrated embodiments of the invention the umbrella frame device includes an elongate stem which has an outer surrounding stem surface that extends along and that surrounds an axis in an axial direction. The outer surrounding stem surface has an upper end portion on which a canopy is adapted to be mounted, a lower end portion, and a middle portion between the upper and lower end portions.
- A protuberance is disposed on the middle portion adj acent to the upper end portion, extends in the axial direction, and has a slideway thereon. The slideway terminates at an upper edge that forms a shoulder with the middle portion. The shoulder extends inwardly and radially of the upper edge.
- A tubular runner is sleeved on and is moveable relative to the stem between upper and lower positions respectively for spreading and collapsing the canopy. The runner has inner and outer surrounding runner surfaces opposite to each other in radial directions relative to the axis. The outer surrounding runner surface has a slot which extends radially through the inner surrounding runner surface. The inner surrounding runner surface is moveable along the slideway.
- A retaining member has a retaining end which is disposed to be moveable radially in the slot and which is extendable inwardly of the inner surrounding runner surface to slideably contact the slideway. The retaining end is brought to slip over the upper edge so as to be retained on the shoulder when the inner surrounding runner surface is moved along the slideway relative to the axis from a disengaging position which corresponds to the lower position, to an engaging position which corresponds to the upper position.
- A sleeve member has an inner surrounding sleeve surface which surrounds the outer surrounding runner surface, and which is movable relative to the outer surrounding runner surface along the axis. The inner surrounding sleeve surface has a cam surface portion which confronts the retaining member and which is configured to be disengaged from the retaining end of the retaining member when the runner is in the lower position and to depress the retaining end radially with a friction force that arrests the inner surrounding runner surface in the engaging position, while the sleeve member is held against gravity by the retaining member.
- Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments of the invention, with reference to the accompanying drawings, in which:
- Fig. 1 is a fragmentary exploded perspective view of the first preferred embodiment of an umbrella frame device according to this invention;
- Fig. 2 is a fragmentary sectional view showing a runner of the umbrella frame device in a disengaging state;
- Fig. 3 is a fragmentary sectional view showing the runner in an engaging state;
- Fig. 4 is a fragmentary sectional view of the second preferred embodiment of an umbrella frame device according to this invention;
- Fig. 5 is a fragmentary sectional view of the third preferred embodiment of an umbrella frame device according to this invention; and
- Fig. 6 is a fragmentary sectional view of the fourth preferred embodiment of an umbrella frame device according to this invention.
- Before the present invention is described in greater detail, it should be noted that same reference numerals have been used to denote like elements throughout the specification.
- Referring to Figs. 1 to 3, the first preferred embodiment of an umbrella frame device according to the present invention is shown to comprise an
elongate stem 10, atubular runner 20 which is sleeved on and which is movable relative to thestem 10 between upper and lower positions for spreading and collapsing a canopy (not shown), and asleeve member 30. - The
stem 10 has an outer surroundingstem surface 11 which extends along and which surrounds an axis (L) in an axial direction. The outer surroundingstem surface 11 has anupper end portion 111 on which the canopy is adapted to be mounted, a lower end portion, and amiddle portion 112 between theupper end portion 111 and the lower end portion. A pair ofarcuate protuberances 113 are disposed on themiddle portion 112 adjacent to theupper end portion 111, extend in the axial direction, and respectively have slideways thereon. Each of the slideways terminates at an upper edge that forms ashoulder 13 with themiddle portion 112. Theshoulder 13 extends inwardly and radially of the upper edge. Alternatively, theprotuberances 113 may be integrally formed with themiddle portion 112. In addition, theprotuberances 113 may be formed by punching of thestem 10. A limitingprotrusion 14 projects outwardly from theupper end portion 111. - The
runner 20 has inner and outer surroundingrunner surfaces runner surface 21 has a pair ofslots 24 which extend radially through the inner surroundingrunner surface 25 and which extend downwardly to terminate atlower edge walls 241, respectively. The inner surroundingrunner surface 25 is movable along the slideways of theprotuberances 113. A pair of retainingmembers 22 are formed on therunner 20. Each of the retainingmembers 22 has a fixedend 221 which is integrally connected to the respectivelower edge wall 241, aretaining end 222 which is opposite to the fixedend 221 in the axial direction and which has a biasing force that urges theretaining end 222 to move radially and outwardly. Thus, theretaining end 222 is movable radially in therespective slot 24, and is extendable inwardly of the inner surroundingrunner surface 25 to slidably contact the respective slideway. Moreover, the retainingend 222 has aninner protrusion 223 which projects towards the axis (L), and anouter contact bump 224 which extends radially and away from theinner protrusion 223. When the inner surroundingrunner surface 25 is moved alone the slideways relative to the axis (L) from a disengaging position, as shown in Fig. 2, which corresponds to the lower position of therunner 20, to an engaging position, as shown in Fig. 3, which corresponds to the upper position of therunner 20, theretaining end 222 is brought to slip over the upper edge of therespective protuberance 113 against the biasing force, with theinner protrusion 223 abutting against therespective shoulder 13 so as to be retained on theshoulder 13. Furthermore, an annular upper limitingmember 213 is formed on anupper portion 211 of therunner 20. An annular lower limitingmember 231 is formed on alower portion 212 of therunner 20. - The
sleeve member 30 has an inner surrounding sleeve surface which surrounds the outer surroundingrunner surface 21, and which is movable relative to the outer surroundingrunner surface 21 along the axis (L) . The inner surrounding sleeve surface has acam surface portion 31 which confronts the retainingmembers 22. In this embodiment, thecam surface portion 31 extends in the axial direction, and is disengaged from theretaining ends 222 of the retainingmembers 22 when therunner 20 is in the lower position, as shown in Fig. 2. Thecam surface portion 31 can depress theouter contact bumps 224 of theretaining ends 222 radially with a friction force that arrests the inner surroundingrunner surface 25 in the engaging position, while thesleeve member 30 is held against gravity by the retainingmembers 22, as shown in Fig. 3. In addition, thesleeve member 30 has anupper edge wall 32 and alower edge wall 33 opposite to each other in the axial direction. - When the
sleeve member 30 is operated to move upwardly relative to thestem 10, therunner 20 can be moved upwardly due to the arrangement of theouter contact bumps 224. Theinner protrusions 223 are then brought to slip over the upper edges of theprotuberances 113, respectively, to be retained on theshoulders 13 as a result of depression of theouter contact bumps 224 by thecam surface portion 31 so as to place the inner surroundingrunner surface 25 in the engaging position, as shown in Figs 3, thereby spreading the canopy. The upward movement of therunner 20 is limited by thelimiting protrusion 14. In this state, theupper edge wall 32 of thesleeve member 30 is limited by the upperlimiting member 213 so as to prevent removal of thesleeve member 30 from therunner 20 in the axial direction. - When it is desired to collapse the canopy, the
sleeve member 30 is pulled downwardly towards the lower end portion of thestem 10. By means of the biasing force of the retainingmembers 22, the retaining ends 222 can be moved away from the axis (L) to disengage from theshoulders 13, thereby permitting downward movement of thesleeve member 30 and therunner 20 towards the lower end portion of thestem 10, as shown in Fig. 2. Thelower edge wall 33 of thesleeve member 30 is limited by the lower limitingmember 231 to prevent removal of thesleeve member 30 from therunner 20 in the axial direction. - As illustrated, the umbrella frame device according to this invention has the following advantages:
- 1. Since the
stem 10 does not have to be formed with a hole, which will weaken the structural strength of the stem, thestem 10 can be constructed to be relative slim, thereby reducing the overall weight of the umbrella frame device. - 2. The
stem 10, therunner 20 and thesleeve member 30 are simple in construction, and are easy to assemble. - 3. When spreading and collapsing the canopy, the user can press the
sleeve member 30 to move therunner 20 to the upper and lower positions. As such, it is convenient and comfortable for the user to operate the umbrella frame device. - Referring to Fig. 4, the second preferred embodiment of an umbrella frame device according to this invention is shown to be similar to that of the first preferred embodiment in construction, except that each of the retaining members 22' is made from a leaf spring having a biasing force, and has a fixed end 221' that is secured to the outer surrounding
runner surface 21 of therunner 20 proximate to thelower portion 212 of therunner 20, and a retaining end 222' opposite to the fixed end 221' in the axial direction. The retaining end 222' has an outer contact portion which extends radially and outwardly of the outer surroundingrunner surface 21 and which is disposed to be depressed by thecam surface portion 31 of thesleeve member 30 against the biasing force such that an inner protrusion 223' of the retaining end 222' can be retained on therespective shoulder 13. - Referring to Fig. 5, the third preferred embodiment of an umbrella frame device according to this invention is shown to be similar to that of the second preferred embodiment in construction, except that each of the retaining
members 22" is made from a leaf spring having a biasing force, and has a fixedend 221" that is secured to the outer surroundingrunner surface 21 of therunner 20 proximate to theupper portion 211 of therunner 20, a retainingend 222" which is opposite to thefixed end 221" in the axial direction. The retainingend 222" has an outer contact portion which extends radially and outwardly of the outer surroundingrunner surface 21. In addition, thecam surface portion 31" of thesleeve member 30" is gradually inclined upwardly and outwardly relative to the axis (L) so as to depress the outer contact portion against the biasing force when thesleeve member 30" is moved upwardly relative to the outer surroundingrunner surface 21. - Furthermore, a
tubular member 15" is integrally formed with atop mount 16" that is provided on theupper end portion 111" of the outer surroundingstem surface 11" of thestem 10", and is sleeved on theupper end portion 111" and the middle portion of the outer surroundingstem surface 11". Thetubular member 15" is formed with an annular limitingportion 14" that is formed as a shoulder for limiting upward movement of therunner 20. Thetubular member 15" extends downwardly to terminate at a surroundingbottom edge wall 151", and has a pair ofhole confining walls 13", each of which is formed adjacent to thebottom edge wall 151" and each of which extends radially of the axis to confine a hole. Thehole confining wall 13" has a lower wall portion which serves as theshoulder 13, as described in the previous embodiments. Therefore, the slideways in this embodiment are disposed between the lower wall portion and thebottom edge wall 151". - Referring to Fig. 6, the fourth preferred embodiment of an umbrella frame device according to this invention is shown to be similar to that of the third preferred embodiment in construction, except that each of the retaining
members 220 is a ball which has contact and retaining ends that are diametrically opposite to each other. The contact end is disposed outwardly of theslot 250 in therunner 200. Thecam surface portion 310 of thesleeve member 300 is gradually inclined upwardly and outwardly relative to the axis (L) so as to depress the contact end when thesleeve member 300 is moved upwardly relative to the outer surroundingrunner surface 201. In addition, atubular member 150, similar to thetubular member 15" of the third preferred embodiment, is disposed to sleeve on the upper end portion and the middle portion of the outer surroundingstem surface 110 of thestem 100. Thetubular member 150 is integrally formed with a limitingring 140, and a pair ofhole confining walls 130, each of which extends radially of the axis (L) to confine a hole. Thehole confining wall 130 has a lower wall portion which serves as theshoulder 13, as described in the previous embodiments. Therefore, the slideways in this embodiment are disposed downwardly of the lower wall portion.
Claims (11)
- An umbrella frame device for spreading and collapsing a canopy, comprising:an elongate stem (10, 10") having an outer surrounding stem surface (11, 11", 110) which extends along and which surrounds an axis (L) in an axial direction, said outer surrounding stem surface (11, 11", 110) having an upper end portion (111, 111") on which the canopy is adapted to be mounted, a lower end portion, and a middle portion (112) between said upper and lower end portions; anda tubular runner (20, 200) sleeved on and movable relative to said stem (10, 10", 100) between upper and lower positions for spreading and collapsing the canopy, said runner (20,200) having inner and outer surrounding runner surfaces (25, 21) opposite to each other in radial directions relative to the axis (L), said umbrella frame device being characterized by:a protuberance (113) disposed on said middle portion (112) adjacent to said upper end portion (111, 111"), extending in the axial direction, and having a slideway thereon, said slideway terminating at an upper edge that forms a shoulder (13) with said middle portion (112), said shoulder (13) extending inwardly and radially of said upper edge;said outer surrounding runner surface (21) having a slot (24, 250) which extends radially through said inner surrounding runner surface (25), said inner surrounding runner surface (25) being movable along said slideway;a retaining member (22,22',22") having a retaining end (222, 222', 222") which is disposed to be movable radially in said slot (24, 250) and extendable inwardly of said inner surrounding runner surface (25) to slidably contact said slideway, said retaining end (222, 222' , 222") being brought to slip over said upper edge so as to be retained on said shoulder (13) when said inner surrounding runner surface (25) is moved along said slideway relative to the axis (L) from a disengaging position which corresponds to the lower position, to an engaging position which corresponds to the upper position, said retaining member (22, 22', 22") including a fixed end (221,221',221") which is opposite to said retaining end (222, 222', 222") in the axial direction, and which is secured to said outer surrounding runner surface (21), said retaining member (22,22',22") being configured such that, on inward displacement from an equilibrium position, said retaining end (222,222',222") acquires a biasing force that urges said retaining end (222,222', 222") to move radially outwardly; anda sleeve member (30,30") having an inner surrounding sleeve surface which surrounds said outer surrounding runner surface (21), and which is movable relative to said outer surrounding runner surface (21) along the axis (L), said inner surrounding sleeve surface having a cam surface portion (31, 31", 310) which confronts said retaining member (22, 22', 22") and which is configured to be disengaged from said retaining end (222, 222', 222") of said retaining member (22, 22', 22"), thereby permitting said retaining end (222, 222', 222") to be urged to steer clear of said shoulder (13) when said runner (20,200) is in the lower position and to depress said retaining end (222, 222', 222") radially with a friction force that arrests said inner surrounding runner surface (25) in the engaging position, while said sleeve member (30,30",300) is held against gravity by said retaining member (22,22',22").
- The umbrella frame device of Claim 1, characterized in that said cam surface portion (31) extends in the axial direction.
- The umbrella frame device of Claim 1 or Claim 2, characterized in that said slot (24) extends towards said lower end portion to terminate at a lower edge wall (241), said fixed end (221) being integrally formed with said lower edge wall (241).
- The umbrella frame device of any preceding Claim, wherein said retaining end (222) has an inner protrusion (223) that projects towards the axis (L) to abut against said shoulder (13) when said inner surrounding runner surface (25) is in the engaging position, and an outer contact bump (224) that extends radially and away from said inner protrusion (223) and that is configured to be depressed by said cam surface portion (31) against the biasing force.
- The umbrella frame device of any preceding Claim, characterized in that said retaining member (22') is made from a leaf spring having a biasing force, said fixed end (221') being disposed proximate to said lower end portion, said retaining end (222') having an outer contact portion which extends radially and outwardly of said outer surrounding runner surface (21) so as to be depressed by said cam surface portion (31) against the biasing force.
- The umbrella frame device of any of Claims 1to 4, characterized in that said retaining member (22") is made from a leaf spring having a biasing force, said fixed end (221") being disposed proximate to said upper end portion (111"), said retaining end (222") having an outer contact portion which extends radially and outwardly of said outer surrounding runner surface (21) so as to be depressed by said cam surface portion (31") against the biasing force.
- The umbrella frame device of Claim 6, characterized in that said cam surface portion (31") is gradually inclined upwardly and outwardly relative to the axis (L) so as to depress said outer contact portion when said sleeve member (30") is moved upwardly relative to said outer surrounding runner surface (21).
- The umbrella frame device of any preceding Claim, characterized in that said protuberance (113) is integrally formed with said outer surrounding stem surface (11).
- The umbrella frame device of any preceding Claim, characterized in that, said protuberance (113) is formed by punching said stem (10).
- The umbrella frame device of any of Claims 1to 7, further characterized by a tubular member (15",150) that is sleeved on said upper end portion (111") and said middle portion, and that extends downwardly to terminate at a surrounding bottom edge wall (151"), said tubular member (15", 150) having a hole confining wall (130, 13") which is formed adjacent to said bottom edge wall (151") and which extends radially of the axis (L) to confine a hole, said hole confining wall (130, 13") having a lower wall portion which serves as said shoulder, said slideway being disposed between said lower wall portion and said bottom edge wall (151").
- The umbrella frame device of any preceding Claim, further characterized by lower and upper limiting members (231,213) disposed to prevent removal of said sleeve member (30,30",300) from said runner (20,200) in the axial direction.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT03250340T ATE327697T1 (en) | 2003-01-20 | 2003-01-20 | MAIN SLIDE FOR A SHADE WITH LOCKING DEVICE |
ES03250340T ES2263919T3 (en) | 2003-01-20 | 2003-01-20 | SLIDING GUIDE FOR UMBRELLA WITH BLOCK DEVICE. |
EP03250340A EP1438906B1 (en) | 2003-01-20 | 2003-01-20 | Umbrella runner with locking device |
DE60305625T DE60305625T2 (en) | 2003-01-20 | 2003-01-20 | Umbrella frame device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03250340A EP1438906B1 (en) | 2003-01-20 | 2003-01-20 | Umbrella runner with locking device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1438906A1 EP1438906A1 (en) | 2004-07-21 |
EP1438906B1 true EP1438906B1 (en) | 2006-05-31 |
Family
ID=32524247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03250340A Expired - Lifetime EP1438906B1 (en) | 2003-01-20 | 2003-01-20 | Umbrella runner with locking device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1438906B1 (en) |
AT (1) | ATE327697T1 (en) |
DE (1) | DE60305625T2 (en) |
ES (1) | ES2263919T3 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2528003A (en) * | 1946-12-11 | 1950-10-31 | Katzberg Eugene | Umbrella lock |
DE2226384C3 (en) * | 1972-05-31 | 1979-08-30 | Bremshey Ag, 5650 Solingen | Screen slide |
JPS60119902A (en) * | 1983-12-05 | 1985-06-27 | 陳 徳良 | Engaging structure of lower lathe of umbrella |
US6431191B1 (en) * | 2001-03-15 | 2002-08-13 | Max Wang | Umbrella with an improved runner fastener |
-
2003
- 2003-01-20 AT AT03250340T patent/ATE327697T1/en not_active IP Right Cessation
- 2003-01-20 ES ES03250340T patent/ES2263919T3/en not_active Expired - Lifetime
- 2003-01-20 EP EP03250340A patent/EP1438906B1/en not_active Expired - Lifetime
- 2003-01-20 DE DE60305625T patent/DE60305625T2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2263919T3 (en) | 2006-12-16 |
DE60305625D1 (en) | 2006-07-06 |
ATE327697T1 (en) | 2006-06-15 |
DE60305625T2 (en) | 2006-12-21 |
EP1438906A1 (en) | 2004-07-21 |
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