EP2865290B1 - Bâton de marche convertible en siège - Google Patents

Bâton de marche convertible en siège Download PDF

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Publication number
EP2865290B1
EP2865290B1 EP14189631.6A EP14189631A EP2865290B1 EP 2865290 B1 EP2865290 B1 EP 2865290B1 EP 14189631 A EP14189631 A EP 14189631A EP 2865290 B1 EP2865290 B1 EP 2865290B1
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EP
European Patent Office
Prior art keywords
key
seat unit
chair
walking stick
convertible
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.)
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EP14189631.6A
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German (de)
English (en)
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EP2865290A1 (fr
Inventor
Chih-Ting PAO
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Step2Gold Co Ltd
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Step2Gold Co Ltd
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Publication of EP2865290A1 publication Critical patent/EP2865290A1/fr
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/04—Folding chairs with inflexible seats
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B5/00—Walking sticks or umbrellas convertible into seats; Hunting sticks
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/04—Folding chairs with inflexible seats
    • A47C4/045—Folding chairs with inflexible seats foldable side to side only
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/10—Camp, travelling, or sports stools
    • A47C9/105—Camp, travelling, or sports stools having several foldable or detachable legs converging in one point

Definitions

  • This invention relates to a chair-convertible walking stick.
  • U.S. patent no. 2380437 discloses a crutch assembly which includes a crutch and a foldable seat.
  • One problem with the crutch assembly is that when the seat is in its folded position, a mechanism for supporting the seat, such as supporting legs, etc., is not compactly folded and is exposed to the user, so that the user may easily get hurt by the folded supporting mechanism.
  • U.S. patent no. 3999565 discloses a walking stick device in which a support member for supporting the wounded knee or leg is fastened to a standard/body in a retractable fashion. The walking stick device may encounter the similar problem.
  • TW patent no. 143 769 B discloses as well a chair-convertible walking stick.
  • An object of the present invention is to provide a chair-convertible walking stick in which a seat unit can be transformed from a use state to a collapsed state by virtue of a novel conversion mechanism.
  • a novel conversion mechanism when a person uses the chair-convertible walking stick of this invention with the seat unit in the collapsed state, he/she is less likely to get hurt by the walking stick.
  • a chair-convertible walking stick includes:
  • a first preferred embodiment of a chair-convertible walking stick in accordance with the present invention includes a supporting unit 1, a conversion mechanism 2, a seat unit 3, and first and second retaining members 13, 14.
  • the supporting unit 1 includes a stick shank 11, a grip 112, and two prop legs 12.
  • the conversion mechanism 2 includes a collar sleeve 22, a carrier 21, two keyways 33, and two bracing bars 23.
  • the stick shank 11 extends in a lengthwise direction (X) to terminate at opposite grip and foot ends 113, 114.
  • the grip 112 is connected to the grip end 113.
  • the collar sleeve 22 is sleeved on the stick shank 11 and is movable between distal and proximate positions, relative to the grip end 113.
  • the carrier 21 is slidable on the stick shank 11, and is movable between an upper position, where the collar sleeve 22 is moved to the proximate position, and a lower position, where the collar sleeve 22 is moved to the distal position.
  • the carrier 21 is securely mounted on and is not slidable relative to the stick shank 11 as shown in Fig. 15 .
  • the seat unit 3 includes a middle portion 31 and left and right wing portions 32.
  • the middle portion 31 extends in a longitudinal direction (L) to terminate at a forward edge 312 and a rearward edge 311 which is pivotally connected to the collar sleeve 22.
  • Each of the left and right wing portions 32 is hinged to the middle portion 31 along a hinge line 313, and is juxtaposed with the middle portion 31 along the respective hinge line 313.
  • the seat unit 3 is convertible from a use state, where the middle portion 31 is coplanar with the left and right wing portions 32 (as best shown in Figs. 1 , 5 and 6 ), to a collapsed state, where the middle portion 31 is at an included angle with each of the left and right wing portions 32 (as best shown in Figs. 2 and 4 ).
  • Each of the keyways 33 is disposed on an under surface of a corresponding one of the left and right wing portions 32, and extends along the longitudinal direction (L) to terminate at front and rear keyway ends 331, 332.
  • the front keyway end 331 is disposed remote from the respective hinged line 313, and the rear keyway end 332 is disposed close to the respective hinged line 313 so as to facilitate conversion of the seat unit 3 from the use state to the collapsed state.
  • Each of the bracing bars 23 has a pivot end 231 pivotally connected to the carrier 21, and a key end 232 configured to be slidably engaged with a corresponding one of the keyways 33 such that when the key end 232 slides from the respective front keyway end 331 to the respective rear keyway end 332, the seat unit 3 is transformed from the use state to the collapsed state.
  • Each of the prop legs 12 has a bottom end 124 for standing on the ground, and a pivoted end 125 pivotally connected to the carrier 21.
  • the prop legs 12 are convertible between a straddling position ( Figs. 1 and 6 ), where the bottom ends 124 of the prop legs 12 are remote from the stick shank 11, and an upheld position ( Figs. 2 and 4 ), where the bottom ends 124 are close to the stick shank 11.
  • the collar sleeve 22 is displaced from the distal position to the proximate position, the prop legs 12 are permitted to move from the straddling position to the upheld position.
  • each of the prop legs 12 includes upper and lower segments 121, 122 which are linked to each other.
  • the upper segment 121 has the respective pivoted end 125
  • the lower segment 122 has the respective bottom end 124.
  • the first and second retaining members 13, 14 are respectively disposed to prevent the collar sleeve 22 and the carrier 21 from moving toward the foot end 114 and to retain the collar sleeve 22 and the carrier 21 at the distal and lower positions, respectively.
  • the carrier 21 can abut with the second retaining member 14 directly to hold the carrier at a lower position.
  • an abutting rod 216 is mounted on and protruding from the carrier 21 to abut with the second retaining member 14 to reduce the pressure applied to the carrier 21 and to having a capability of spreading the pressure applied onto the carrier 21.
  • the walking stick further includes a third retaining member 28 which is disposed to prevent the collar sleeve 22 from moving toward the foot end 114 and to permit the collar sleeve 22 to be retained at the proximate position.
  • a third retaining member 28 which is disposed to prevent the collar sleeve 22 from moving toward the foot end 114 and to permit the collar sleeve 22 to be retained at the proximate position.
  • the walking stick further includes first and second biasing members 27, 26.
  • the first biasing member 27 is disposed to bias the collar sleeve 22 toward the first retaining member 13 by virtue of a first biasing force.
  • the second biasing member 26 is disposed to bias the carrier 21 toward the second retaining member 14 by virtue of a second biasing force.
  • the seat unit 3 is convertible from the use state to the collapsed state, and such that when the collar sleeve 22 is subsequently displaced to the proximate position and is retained thereat by the third retaining member 28, the carrier 21 is displaced to the upper position.
  • the stick shank 11 is formed with a lengthwise-extending groove 111.
  • the first biasing member 27 is disposed in the lengthwise-extending groove 111 and has two ends respectively connected to the collar sleeve 22 and a groove-defining wall at a first position that is located between the first and second retaining members 13, 14.
  • the second biasing member 26 is also disposed in the lengthwise-extending groove 111, and has two ends respectively connected to the carrier 21 and the groove-defining wall at a second position that is located between the second retaining member 14 and the foot end 114.
  • the stick shank 11 is formed with four lengthwise-extending grooves 111 which are angularly displaced apart from each other, and each of which has the first and second biasing members 27, 26.
  • the collar sleeve 22 is provided with a locking device 40 selectively locked with the third retaining member 28 to hold the position of the collar sleeve 22 when the collar sleeve 22 is displaced to the proximate position to thereby retain the collar sleeve 22 thereat.
  • the third retaining member 28 is an engaging notch defined in the stick shank 11 at a position near the grip end 113.
  • the locking device 40 is rotatably mounted around the stick shank 11 and is connected with the collar sleeve 22.
  • the locking device 40 has an engaging block 42 formed on the locking device 40 and selectively engaging the third retaining member 28.
  • the locking device When the collar sleeve is moved to the proximate position, the locking device is rotated to engage the engaging block 42 with the third retaining member 28 so as to hold the position of the collar sleeve 22. To release the collar sleeve 22, it is simply necessary to rotate and unlock the locking device 40.
  • the walking stick further includes two strut members 24 and two linking members 123.
  • Each of the strut members 24 has a sleeve-side end 241 pivotally connected to the collar sleeve 22, and a bar-side end 242 pivotally connected to a corresponding one of the bracing bars 23 between the respective pivot end 231 and the respective key end 232 so as to facilitate sliding of the respective key end 232 between the respective front and rear keyway ends 331, 332. Furthermore, a distance between the bar-side end 242 and the respective pivot end 231 is slightly shorter than a distance between the bar-side end 242 and the respective key end 232.
  • Each linking member 123 has an upper linking end 126 pivotally connected to the collar sleeve 22, and a lower linking end 127 pivotally connected to the respective pivoted end 125 so as to facilitate displacement of each of the prop legs 12 between the straddling position and the upheld position.
  • the seat unit 3 is configured such that, when in the collapsed state, the left and right wing portions 32 are disposed angularly about the stick shank 11 and define a gap 30 therebetween.
  • the gap 30 is opposite to the middle portion 31 relative to the stick shank 11, and is configured to accommodate the prop legs 12 therein when the prop legs 12 are displaced to the upheld position.
  • the bracing bars 23 and the strut members 24 are accommodated in a space between the middle portion 31 and the stick shank 11.
  • the middle portion 31 extends to terminate at left and right margins 314 (only one is shown) that are adjacent to the left and right wing portions 32 and that are rounded.
  • Each of the left and right wing portions 32 extends to terminate at a connection margin 321 (only one is shown) that is rounded.
  • the chair-convertible walking stick further includes two key assemblies 25, each of which includes an engageable key unit 251 and a pivotable key unit 252.
  • the engageable key unit 251 is configured to be slidably and rotatably engaged with the corresponding one of the keyways 33.
  • the pivotable key unit 252 is configured to be pivotally connected to the engageable key unit 251 about a pivot axis, and is pivotally connect to the key end 232 of the corresponding one of the bracing bars 23.
  • the pivot axis is surrounded by a curved arrow 259 shown in Fig. 10 .
  • the engageable key unit 251 includes a key stem 253, a key seat 254, and a key head 256.
  • the key seat 254 is formed with an insertion hole 255.
  • the key stem 253 extends in a lengthwise axis (A) to terminate at a connection end 257 and a free end 258, and is configured to be inserted in the insertion hole 255 so as to permit the key seat 254 to rotate about the lengthwise axis (A) which is perpendicular to the pivot axis.
  • the key head 256 is connected to the connected end 257 of the key stem 253 and is slidably engaged with the corresponding one of the keyways 33.
  • the carrier 21 includes a hub body 210 having an inner tubular surface 212 slidably engaged with the stick shank 11, and an outer anchoring surface 213 which is opposite to the inner tubular surface 212 in radial directions, and which is configured to permit the bracing bars 23 and the prop legs 12 to be pivotally connected thereto.
  • the second retaining member 14 has a dimension larger than that of the first retaining member 13.
  • the inner tubular surface 212 is configured to have a groove region 214 for passage of the first retaining member 13 therethrough and a raised region 211 that abuts against the second retaining member 14 when the carrier 21 is displaced to the lower position.
  • Fig. 12 illustrates a chair-convertible walking stick according to a second preferred embodiment of this invention.
  • the second preferred embodiment differs from the first embodiment in that, in the second preferred embodiment, the first and second biasing members 27, 26 are omitted.
  • the chair-convertible walking stick further includes a fourth retaining member 15 and a third biasing member 29.
  • the fourth retaining member 15 is disposed to retain the carrier 21 at the upper position.
  • the third biasing member 29 is disposed to bias the collar sleeve 22 toward the carrier 21 by a third biasing force.
  • the third biasing member 29 is disposed to be connected between the collar sleeve 22 and the carrier 21 so as to bias the collar sleeve 22 toward the carrier 21.
  • Fig. 13 is a cross-sectional view of a third preferred embodiment of a chair-convertible walking stick according to of this invention.
  • the engageable key unit 251 further includes a fourth biasing member 250, and the key head 256 is displaceable between a first key position and a second key position.
  • the fourth biasing member 250 is sleeved on the key stem 253 and is disposed between the key seat 254 and said key head 256 to bias the key head 256 to the first key position.
  • Fig. 14 illustrates a portion of a fourth embodiment of a chair-convertible walking stick of this invention.
  • the walking stick further includes a fifth biasing member 35.
  • the fifth biasing member 35 is disposed adjacent to the rearward edge 311 of the middle portion 31 of the seat unit 3 to bias the seat unit 3 from the collapsed state to the use state.

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Claims (14)

  1. Bâton de marche convertible en siège comprenant :
    une tige de bâton (11) s'étendant dans une direction longitudinale (X) pour se terminer au niveau d'une extrémité de poignée (113) et d'une extrémité de pied (114) ;
    un manchon formant collier (22) emmanché sur ladite tige de bâton (11) et mobile entre des positions distale et proximale par rapport à ladite extrémité de poignée (113) ;
    un support (21) monté sur ladite tige de bâton (11) ;
    une unité de siège (3) comprenant
    une portion centrale (31) s'étendant dans une direction longitudinale (L) pour se terminer au niveau d'un bord avant (312) et d'un bord arrière (311) qui est connecté de manière pivotante audit manchon formant collier (22), et
    des portions d'aile gauche et droite (32), chacune étant juxtaposée à ladite portion centrale (31) le long d'une ligne de charnière (313) et chacune étant articulée à ladite portion centrale (31) au niveau de la ligne de charnière respective (313) de manière que, quand ledit manchon formant collier (22) est déplacé de la position distale à la position proximale, ladite unité de siège (3) soit convertible d'un état d'utilisation, dans lequel ladite portion centrale (31) est coplanaire avec lesdites portions d'aile gauche et droite (32), à un état affaissé, dans lequel ladite portion centrale (31) forme un angle inclus avec chacune desdites portions d'aile gauche et droite (32) ;
    deux rainures (33) étant disposées chacune sur une surface inférieure d'une correspondante desdites portions d'aile gauche et droite (32), et d'étendant chacune suivant la direction longitudinale (L) pour se terminer au niveau d'extrémités de rainure avant et arrière (331, 332).
    deux barres de renforcement (23) ayant chacune une extrémité de pivot (231) connectée de manière pivotante audit support (21) et une extrémité formant clavette (232) configurée pour être engagée de manière coulissante avec une correspondante desdites rainures (33) de manière que, quand ladite extrémité formant clavette (232) coulisse de ladite extrémité de rainure avant (331) de l'une respective desdites rainures (33) à ladite extrémité de rainure arrière (332) de l'une respective desdites rainures (33), ladite unité de siège (3) est convertie de l'état d'utilisation à l'état affaissé ; et
    deux pattes de soutien (12) s'étendant chacune pour se terminer à une extrémité inférieure (124) pour s'appuyer sur le sol et une extrémité articulée (125) connectée de manière pivotante audit support (21), lesdites deux pattes de soutien (12) étant convertibles entre une position de chevauchement, dans laquelle lesdites extrémités inférieures (124) desdites pattes de soutien (12) sont éloignées de ladite tige de bâton (11), et une position soutenue, dans laquelle lesdites extrémités inférieures (124) sont proches de ladite tige de bâton (11) de manière que ledit manchon formant collier (22) soit déplacé de la position distale à la position proximale, lesdites pattes de soutien (12) étant autorisées à se déplacer de la position de chevauchement à la position soutenue, dans lequel le bâton de marche convertible en siège est caractérisé en ce que ladite extrémité de rainure avant (331) est disposée éloignée de la ligne de charnière respective (313) et ladite extrémité de rainure arrière (332) est disposée proche de la ligne de charnière respective (313) de manière à faciliter la conversion de ladite unité de siège (3) de l'état d'utilisation à l'état affaissé.
  2. Bâton de marche convertible en siège selon la revendication 1, dans lequel le support (21) est configuré pour être coulissant sur ladite tige de bâton (11) et est mobile entre des positions supérieure et inférieure.
  3. Bâton de marche convertible en siège selon la revendication 1, dans lequel le support (21) est monté solidement sur ladite tige de bâton (11).
  4. Bâton de marche convertible en siège selon la revendication 1 ou 2, comprenant en outre deux éléments d'entretoise (24) ayant chacun une extrémité côté manchon (241) connectée de manière pivotante audit manchon formant collier (22) et une extrémité côté barre (242) connectée de manière pivotante à une correspondante desdites barres de renforcement (23) entre ladite extrémité de pivot (231) et ladite extrémité formant clavette (232) de l'une correspondante desdites barres de renforcement (23) de manière à faciliter le coulissement de ladite extrémité formant clavette (232) entre lesdites extrémités de rainure avant et arrière (331, 332) de l'une respective desdites rainures (33).
  5. Bâton de marche convertible en siège selon la revendication 4, comprenant en outre un deuxième élément de retenue (14) disposé pour empêcher ledit support (21) de se déplacer vers ladite extrémité de pied (114) et pour permettre au support (21) d'être retenu au niveau de la position inférieure.
  6. Bâton de marche convertible en siège selon l'une quelconque des revendications 1 à 5, comprenant en outre deux ensembles de clavette (25) chacun desquels comprend
    une unité de clavette engageable (251) configurée pour être engagée de manière coulissante et rotative avec l'une correspondante desdites rainures (33), et
    une unité de clavette pivotante (252) qui est configurée pour être connectée de manière pivotante à ladite unité de clavette engageable (251) autour d'un axe de rotation, et qui est configurée pour être connectée de manière pivotante à ladite extrémité formant clavette (232) de l'une correspondante desdites barres de renforcement (23).
  7. Bâton de marche convertible en siège selon la revendication 6, dans lequel ladite unité de clavette engageable (251) comprend :
    un siège de clavette (254) formé avec un trou d'insertion (255) ;
    une tige de clavette (253) s'étendant suivant un axe longitudinal (A) pour se terminer par une extrémité connectée (257) et une extrémité libre (258), et configurée pour être insérée dans ledit trou d'insertion (255) de manière à permettre audit siège de clavette (254) de tourner autour de l'axe longitudinal (A) qui est perpendiculaire à l'axe de rotation ;
    une tête de clavette (256) connectée à ladite extrémité connectée (257) de ladite tige de clavette (253) et déplaçable entre une première position de clavette et une deuxième position de clavette ; et
    un quatrième élément de sollicitation (250) emmanché sur ladite tige de clavette (253) et disposé entre ledit siège de clavette (254) et ladite tête de clavette (256) pour solliciter ladite tête de clavette (256) vers la première position de clavette.
  8. Bâton de marche convertible en siège selon l'une quelconque des revendications 1 à 7, dans lequel chacune desdites pattes de soutien (12) comprend des segments supérieur et inférieur (121, 122) qui sont liés l'un à l'autre, et qui ont respectivement ladite extrémité articulée (125) et ladite extrémité inférieure (124), de manière que, quand lesdites pattes de soutien (12) sont dans la position de chevauchement, lesdits segments supérieur et inférieur (121, 122) soient dans un état déplié, et, quand lesdites pattes de soutien (12) sont dans la position soutenue, lesdits segments supérieur et inférieur (121, 122) soient dans un état replié.
  9. Bâton de marche convertible en siège selon l'une quelconque des revendications 1, 2 et 4 à 8, comprenant en outre
    un troisième élément de sollicitation (29) disposé pour solliciter ledit manchon formant collier (22) vers ledit support (21) avec une troisième force de sollicitation, de manière que, quand ledit manchon formant collier (22) est soumis à une force de traction manuelle pour être ainsi déplacé vers une deuxième position de transit, où la force de traction manuelle s'oppose à la troisième force de sollicitation, ledit support (21) soit déplacé vers la position supérieure, et de manière que, quand ledit manchon formant collier (22) est successivement troisième élément de retenue (29), ladite unité de siège (3) soit convertie de l'état d'utilisation à l'état affaissé.
  10. Bâton de marche convertible en siège selon l'une quelconque des revendications 1 à 9, dans lequel ladite unité de siège comprend un élément de sollicitation (35) disposé adjacent audit bord arrière (311) de ladite portion centrale (31) de ladite unité de siège (3) pour solliciter ladite unité de siège (3) de l'état affaissé à l'état d'utilisation.
  11. Unité de siège pour un bâton de marche convertible en siège selon la revendication 1, comprenant :
    une portion centrale (31) s'étendant dans une direction longitudinale (L) pour se terminer au niveau d'un bord avant (312) et d'un bord arrière (311) qui est connecté de manière pivotante à un manchon formant collier (22) du bâton de marche, et
    des portions d'aile gauche et droite (32), chacune étant juxtaposée à ladite portion centrale (31) le long d'une ligne de charnière (313) et chacune étant articulée à ladite portion centrale (31) au niveau de la ligne de charnière respective (313) de manière que ladite unité de siège soit convertible d'un état d'utilisation, lorsque ladite portion centrale (31) est coplanaire avec lesdites portions d'aile gauche et droite (32), à un état affaissé, dans lequel ladite portion centrale forme un angle inclus avec chacune desdites portions d'aile gauche et droite (32) ;
    deux rainures (33) étant disposées chacune sur une surface inférieure d'une correspondante desdites portions d'aile gauche et droite (32), et d'étendant chacune suivant la direction longitudinale (L) pour se terminer au niveau d'extrémités de rainure avant et arrière (331, 332) ; et
    deux barres de renforcement (23) ayant chacune une extrémité de pivot (231) connectée audit support (21) et une extrémité formant clavette (232) configurée pour être engagée de manière coulissante avec une correspondante desdites rainures (33) de manière que, quand ladite extrémité formant clavette (232) coulisse de ladite extrémité de rainure avant (331) de l'une respective desdites rainures (33) à ladite extrémité de rainure arrière (332) de l'une respective desdites rainures (33), ladite unité de siège (3) est convertie de l'état d'utilisation à l'état affaissé, dans lequel l'unité de siège est caractérisée en ce que l'unité de siège comprend en outre
    deux éléments d'entretoise (24) ayant chacun une extrémité côté barre (242) connectée de manière pivotante à une correspondante desdites barres de renforcement (23) entre ladite extrémité de pivot (231) et ladite extrémité formant clavette (232) de l'une correspondante desdites barres de renforcement (23) de manière à faciliter le coulissement de ladite extrémité formant clavette (232) entre lesdites extrémités de rainure avant et arrière (331, 332) de l'une respective desdites rainures (33).
  12. Unité de siège selon la revendication 11, comprenant en outre deux ensembles de clavette (25) chacun desquels comprend
    une unité de clavette engageable (251) configurée pour être engagée de manière coulissante et rotative avec l'une correspondante desdites rainures (33), et
    une unité de clavette pivotante (252) qui est configurée pour être connectée de manière pivotante à ladite unité de clavette engageable (251) autour d'un axe de rotation, et qui est configurée pour être connectée de manière pivotante à ladite extrémité formant clavette (232) de l'une correspondante desdites barres de renforcement (23).
  13. Unité de siège selon la revendication 11 ou 12, dans laquelle ladite unité de siège comprend un élément de sollicitation (35) disposé adjacent audit bord arrière (311) de ladite portion centrale (31) de ladite unité de siège (3) pour solliciter ladite unité de siège (3) de l'état affaissé à l'état d'utilisation.
  14. Unité de siège selon la revendication 12 ou 13, dans laquelle ladite unité de clavette engageable (251) comprend :
    un siège de clavette (254) formé avec un trou d'insertion (255) ;
    une tige de clavette (253) s'étendant suivant un axe longitudinal (A) pour se terminer par une extrémité connectée (257) et une extrémité libre (258), et configurée pour être insérée dans ledit trou d'insertion (255) de manière à permettre audit siège de clavette (254) de tourner autour de l'axe longitudinal (A) qui est perpendiculaire à l'axe de rotation ;
    une tête de clavette (256) connectée à ladite extrémité connectée (257) de ladite tige de clavette (253) et déplaçable entre une première position de clavette et une deuxième position de clavette ; et
    un élément de sollicitation (250) emmanché sur ladite tige de clavette (253) et disposé entre ledit siège de clavette (254) et ladite tête de clavette (256) pour solliciter ladite tête de clavette (256) vers la première position de clavette.
EP14189631.6A 2013-10-23 2014-10-21 Bâton de marche convertible en siège Active EP2865290B1 (fr)

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JP (1) JP5869647B2 (fr)
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JP2015080724A (ja) 2015-04-27
TW201515605A (zh) 2015-05-01
JP5869647B2 (ja) 2016-02-24
CN104545072B (zh) 2017-02-15
EP2865290A1 (fr) 2015-04-29
CN104545072A (zh) 2015-04-29
TWI483694B (fr) 2015-05-11

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