IMPROVED VERTICAL CLOTHES DRYING RACK

Description

[0001] The present patent application for industrial invention relates to an improved vertical clothes drying rack.

[0002] In order to better illustrate the innovative features and the advantages of the invention, the structural configuration of a traditional vertical clothes drying rack is described, as shown in Figs. 1 and 2.

[0003] A clothes drying rack (S) comprises a frame provided with stabilization feet (P) and composed of two identical uprights (M), which are connected by multiple crossbars (T), of which at least one lower crossbar (T1) that extends astride the base of said uprights (M), which act as support for at least one tilting grille (G) supported by an opposite coaxial pair of pins that protrude from two uprights (M), in such a way that said tilting grille (G) can move from a first idle position, wherein it is disposed in a vertical position that is basically coplanar to the two uprights (M), to a second operating position, wherein it is disposed in a horizontal projecting position relative to said uprights (M).

[0004] Generally speaking, four feet (P) are provided, being suitable for revolving around a vertical axis in such a way that also said feet (P) can be closed in a first idle position, wherein they are basically disposed on the same vertical plane where the pair of uprights (M) lies, or opened in a second operating position, wherein they are perpendicular to the vertical plane where the pair of uprights (M) lies.

[0005] Such a type of clothes drying rack is very popular and much appreciated for its minimum volume, which is basically two-dimensional while the clothes drying rack is not used, saving space during storage and transportation for the manufacturer, and during storage also for the final user.

[0006] According to such a standardized structural and functional configuration, from time to time designers have chosen and used different construction solutions for fixing the stabilization feet (P), which are in any case suitable for revolving by at least 90° around a vertical axis.

[0007] Otherwise said, two categories of clothes drying racks with feet that revolve at least by 90° are already known on the market.

[0008] According to a first category, said clothes drying rack of the prior art comprise a pair of revolving feet (P) at the base of each upright (M). In such a case, a bracket (ST) is used, which is provided with a housing for receiving the lower end section of each upright (M), whereas an opposite pair of housings for the pivoting pins (P2) of the two feet (P) is provided at the sides of said central housing, as clearly shown in the enlarged view of Fig. 2.

[0009] In these cases, the lower reinforcement crossbar (T1) is fixed directly at the base of the uprights (M) and does not contribute to support the feet (P).

[0010] A clothes drying rack of this first category is disclosed in KR20110000546U. KR20110000546U discloses a vertical laundry rack comprising two uprights, each of them comprising a base pivoted to two feet that revolve around pivoting pins with vertical axis. The pivoting pins of the revolving feet are disposed on opposite sides of the upright, in such a way that the upright is disposed between the two pivoting pins and the vertical plane where the axes of said pivoting pins lie also contain the longitudinal axis of the upright.

[0011] More precisely, the housings of said pivoting pins are obtained at the opposite sides of a coupling that connects the upright with a crossbar. In particular, such a coupling comprises a hole with vertical axis for inserting the upright, and a hole with a horizontal axis for inserting the crossbar.

[0012] As already mentioned, a second category of clothes drying rack with feet that revolve at least for 90° is known.

[0013] The clothes drying racks of this second category comprise two feet (P) fixed in the center and astride the reinforcement crossbar (T1) that is inevitably subject to high torsion stress generated on the opposite pair of feet when an unbalanced load occurs between the tilting grilles (G) disposed on opposite sides relative to the vertical plane where the pair of uprights (M) lies.

[0014] In this second category of vertical clothes drying racks, the fixing of the opposite pair of revolving feet to the crossbar (T1) is made by means of a first coupling, which allows for assembling and disassembling the pair of feet relative to the crossbar (T1) rapidly and easily. Another clothes drying rack is provided in US2012/138557 A1.

[0015] In order to easily assemble and disassemble the crossbar (T1) relative the uprights (M), a second coupling is used, which is provided with fastening means for fastening to the uprights on one side, and with fastening means for fastening to the crossbar (T1) on the other side.

[0016] The purpose of the present invention is to improve this second type of clothes drying rack, where the feet (P) are anchored to the crossbar (T1) and not to the base of the uprights.

[0017] The first purpose is to reduce the stress of the reinforcement crossbar.

[0018] An additional purpose of the invention is to simplify the structure of the clothes drying rack, using the lowest number of couplings to join the crossbar (T1) to the uprights (M) on one hand, and to join two opposite pairs of revolving feet (P) to the crossbar (T1) on the other hand.

[0019] These and other purposes are achieved by the present invention, which relates to an improved vertical clothes drying rack according to claim 1.

[0020] The detailed description of the invention continues with reference to the appended figures, which only have an illustrative, not limiting purpose wherein:

• Fig. 3 is a view of the improved clothes drying rack according to the invention;
• Fig. 4 is an exploded view of a construction detail, which refers to the innovative coupling provided at the two ends of the crossbar (T1) used in the improved clothes drying rack of the invention;
• Fig. 5 is a view of an enlarged detail of Fig. 3, which shows the connection between the feet (P) and the crossbar (T1) and between the crossbar (T1) and the uprights (M).
• Fig. 6 is the same as Fig. 3, except for it shows a different structure of the coupling provided at the two ends of the crossbar (T1) used in the improved clothes drying rack of the invention.

[0021] With reference to Figs. 3, 4 and 5, a preferred embodiment of the clothes drying rack according to the invention is described, which is generally indicated with reference numeral (S2).

[0022] The clothes drying rack (S2) of the invention comprises a frame provided with two uprights (M), each of them being provided with a base (B) suitable for facing the ground, and a lower crossbar (T1) used to connect the two uprights (M) in lower position.

[0023] Two opposite pairs of revolving feet (P) are connected to the frame and preferably support two ground wheels (23) of swiveling type.

[0024] A plurality of tilting grilles (G) is supported by the two uprights (M). In particular, each tilting grille (G) is supported by an opposite coaxial pair of pins that protrude from the two uprights (M), in such a way that the tilting grille (G) can be moved between an idle position, wherein the tilting grille (G) is in vertical position, and a working position, wherein the tilting grille (G) is in a horizontal projecting position relative to the two uprights (M).

[0025] With reference to Figs. 4 and 5, the lower crossbar (T1) comprises two end sections (TT) and two transverse end sections (ST).

[0026] In particular, the end sections (TT) of the lower crossbar (T1) comprise pivoting means (M2) for pivoting the two opposite pairs of feet (P) that revolve around respective vertical axes.

[0027] Specifically, in correspondence of each side of the end section (TT), said pivoting means (M2) provided in each end section (TT) of the lower crossbar (T1) comprise two overlapped perforated shelves (211) and two plugs (213) disposed inside holes (212) with vertical axis obtained in said shelves (211). Each revolving foot (P) comprises a fastening portion (Z) for fastening to the lower crossbar (T1) provided with a hole (P1) with vertical axis. In particular, the fastening portion (Z) of each revolving foot (P) is dimensioned in such a way to be exactly disposed between the two shelves (211) disposed in correspondence of one of the two sides of the end section (TT), with the hole (P1) disposed in coaxial position relative to the holes (212) of the two shelves (211), in such a way that each plug (213) of the pivoting means (M2) of the lower crossbar (T1) is inserted in the holes (212) of the shelves (211) and in the hole (P1) provided in the revolving foot (P). In view of the above, the revolving feet (P) are exclusively pivoted to the lower crossbar (T1).

[0028] Said lower crossbar (T1) is molded in one piece from plastic material and reinforced with an internal metal core and a rib that runs along the upper edge of the lower crossbar (T1).

[0029] With reference to Figs. 4 and 5, the transverse end sections (ST) of the lower crossbar (T1) comprise connection means (M1) for connecting the lower crossbar (T1) to the two uprights (M). In particular, said connection means (M1) provided in the transverse end sections (ST) of the lower crossbar (T1) are configured in such a way to cooperate with said connection means (M3) provided in the base (B) of each upright (M).

[0030] More precisely, the connection means (M1) of each transverse end section (ST) of the lower crossbar (T1) advantageously comprise two binocular nozzles (210) with vertical axis, whereas the connection means (M3) of each upright (M) comprise a sleeve (110) with vertical axis, from where two spaced-out overlapped shelves (111) protrude laterally, each of them being provided with two holes (112) with vertical axis suitable for being crossed by two plugs (113).

[0031] In particular, the binocular nozzles (210) are dimensioned in such a way to be exactly disposed between the shelves (111) that protrude from the sleeve (110), in such a way that each plug (113) is inserted in one of the holes (112) of the shelves (111) of the sleeve (110) of the upright and in one of the binocular nozzles (210), connecting the upright (M) to the lower crossbar (T1).

[0032] Preferably, the sleeve (110) supports a small swiveling wheel (12) in lower position, as illustrated in Fig. 5.

[0033] With reference to Fig. 6, the connection means (M1) provided in the transverse end sections (ST) of the lower crossbar (T1) for connecting the lower crossbar (T1) to the two uprights (M) can comprise a hook (300) provided with a vertical groove (301) with a T-shape section, instead of said binocular nozzles (210).

[0034] In such a case, the connection means (M3) provided in the base (B) of each upright (M) comprise a sleeve (110) with vertical axis, from where a rib with vertical axis (114) protrudes laterally, having the same dimensions and profile as the vertical groove (301) of the hook (300) of the connection means (M1) of each transverse end section (ST) of the lower crossbar (T1), in such a way that said rib (114) of the sleeve (110) of the upright (M) is inserted in the vertical groove (301) of the hook (300) of the lower crossbar (T1), thus connecting the lower crossbar (T1) to the upright (M).

Claims

1. Improved vertical clothes drying rack (S2) comprising:

- a frame comprising two uprights (M) and a lower crossbar (T1) that connects said two uprights (M) in lower position; each upright (M) comprising a base (B) suitable for facing the ground;

- two opposite pairs of revolving feet (P) that are connected to the frame wherein each revolving foot has a vertical axis;

- at least one tilting grille (G) supported by said uprights (M) and supported by an opposite coaxial pair of pins that protrude from said two uprights (M), in such a way that said at least one tilting grille (G) is configured to be movable between an idle position, wherein said at least one tilting grille (G) is in a vertical position, and an operating position, wherein said at least one tilting grille (G) is in a horizontal projecting position relative to said two uprights (M), wherein said lower crossbar (T1) comprises two end sections (TT) and two transverse end sections (ST), wherein the end sections (TT) of said lower crossbar (T1) comprise pivoting means (M2) for pivoting said opposite pairs of revolving feet (P), around respective vertical axes, and said transverse end sections (ST) of said lower crossbar (T1) comprise connection means (M1) for connecting the lower crossbar (T1) to the two uprights (M); each upright (M) being provided, in correspondence of its base (B), with connection means (M3) that are configured in such a way to cooperate with said connection means (M1) provided in the transverse end section (ST) of said lower crossbar (T1),
characterized in that said lower crossbar (T1) is moulded in one piece from plastic material and reinforced with an internal metal core and a rib that runs along the upper edge of the lower crossbar (T1).

2. The clothes drying rack (S2) of claim 1, wherein:

said pivoting means (M2) provided in each end section (TT) of said lower crossbar (T1) comprise, in correspondence of each side of said end section (TT), two perforated overlapped shelves (211) and two plugs (213) disposed inside holes (212) with vertical axis obtained in said shelves (211);

each of said revolving feet (P) comprising a fastening portion (Z) for fastening to the lower crossbar (T1) provided with a hole (P1) with a vertical axis and dimensioned in such a way to be exactly disposed between said pair of overlapped shelves (211) of the pivoting means (M2), with the hole (P1) disposed in coaxial position relative to the holes (212) of said pair of overlapped shelves (211), in such a way that each plug (213) of the pivoting means (M2) of said lower crossbar (T1) is inserted in the holes (212) of the shelves (211) and in the hole (P1) provided in the revolving foot (P).

3. The clothes drying rack (S2) of claim 2, wherein
said connection means (M1) of each transverse end section (ST) of said lower crossbar (T1) comprise two binocular nozzles (210) with vertical axis;
said connection means (M3) of each upright (M) comprise:

- a sleeve (110) with vertical axis, from where two perforated shelves (111) protrude laterally in spaced-out overlapped position; each shelf (111) being provided with two holes (112) with vertical axis, in side-by-side position, and

- two plugs (113) with vertical axis, inserted in the holes (112) of the shelves (111) of the sleeve;

said binocular nozzles (210) of the connection means (M1) of each transverse end section (ST) of said lower crossbar (T1) being dimensioned in such a way to be exactly interposed between said shelves (111) of the connection means (M3) of each upright (M), in such a way that each plug (113) is inserted in one of the holes (112) of the shelves (111) of the sleeve (110) of the upright and in one of the binocular nozzles (210).

4. The clothes drying rack (S2) of claim 1, wherein:

- said connection means (M1) of each transverse end section (ST) of said lower crossbar (T1) comprise a hook (300) provided with a vertical groove (301) with a T-shaped profile,

- said pivoting means (M2) provided in each end section (TT) of said lower crossbar (T1) comprise, in correspondence of each side of said end section (TT), two perforated overlapped shelves (211) and two plugs (213) disposed inside holes (212) with vertical axis obtained in said shelves (211);

- said connection means (M3) of each upright (M) comprise a sleeve (110) with vertical axis, from where a rib with vertical axis (114) protrudes laterally, having the same dimensions and profile as the vertical groove (301) of the hook (300) of the connection means (M1) of each transverse end section (ST) of the lower crossbar (T1), in such a way that the rib (114) of the sleeve (110) of the upright (M) is inserted in the vertical groove (301) of the hook (300) of said lower crossbar (T1).

5. The drying clothes rack (S2) of claims 3 or 4, wherein said sleeve (110) and said revolving feet (P) support ground wheels (12, 23).

Ansprüche

1. Verbesserter vertikaler Wäscheständer (S2), umfassend:

- ein Gestell, umfassend zwei Stützen (M) und einen unteren Querträger (T1), der die beiden Stützen (M) in unterer Position verbindet; wobei jede Stütze (M) eine Basis (B) umfasst, die geeignet ist, dem Boden zugewandt zu werden;

- zwei gegenüberliegende Paare mit dem Gestell verbundener, drehbarer Füße (P), wobei jeder drehbare Fuß eine vertikale Achse aufweist;

- mindestens ein kippbares Gitter (G), das von den Stützen (M) getragen und von einem Paar gegenüber liegender, koaxialer Stifte gehalten wird, die aus den beiden Stützen (M) vorstehen, derart, dass das mindestens eine kippbare Gitter (G) zwischen einer Ruhestellung, in der das mindestens eine kippbare Gitter (G) in vertikaler Stellung ist, und einer Betriebsstellung bewegt werden kann, in der das mindestens eine kippbare Gitter (G) in horizontaler, in Bezug auf die beiden Stützen (M) vorstehender Stellung ist,

wobei der untere Querträger (T1) zwei Endabschnitte (TT) und zwei querlaufende Endabschnitte (ST) umfasst,
wobei
die Endabschnitte (TT) des unteren Querträgers (T1) Schwenkmittel (M2) zum Schwenken der gegenüber liegenden Paare drehbarer Füße (P) um jeweilige vertikale Achsen umfassen und
die querlaufenden Endabschnitte (ST) des unteren Querträgers (T1) Verbindungsmittel (M1) zur Verbindung des unteren Querträgers (T1) mit den beiden Stützen (M) umfassen;
jede Stütze (M) an ihrer Basis (B) Verbindungsmittel (M3) aufweist, die ausgestaltet sind, um mit den Verbindungsmitteln (M1) zusammenzuwirken, die im querlaufenden Endabschnitt (ST) des unteren Querträgers (T1) vorgesehen sind;
dadurch gekennzeichnet, dass
der untere Querträger (T1) einstückig aus Kunststoff hergestellt und mit einem inneren Metallkern und einer Rippe verstärkt ist, die entlang der oberen Kante des unteren Querträgers (T1) verläuft.

2. Wäscheständer (S2) nach Anspruch 1, wobei:

- die Schwenkmittel (M2), die in jedem Endabschnitt (TT) des unteren Querträgers (T1) vorgesehen sind, an jeder Seite des Endabschnitts (TT) zwei gelochte, übereinander liegende Konsolen (211) und zwei in vertikalachsigen, aus den Konsolen (211) herausgearbeiteten Löchern (212) angeordnete Stifte (213) umfassen;

wobei jeder der drehbaren Füße (P) einen Ansetzabschnitt (Z) am unteren Querträger (T1) umfasst, der ein vertikalachsiges und entsprechend bemessenes Loch (P1) aufweist, um genau zwischen dem Paar übereinander liegender Konsolen (211) der Schwenkmittel (M2) angeordnet werden zu können, wobei das Loch (P1) koaxial in Bezug auf die Löcher (212) des Paares übereinander liegender Konsolen (211) angeordnet ist, derart, dass jeder Stift (213) der Schwenkmittel (M2) des unteren Querträgers (T1) in die Löcher (212) der Konsolen (211) und in das Loch (P1) eingesteckt ist, das in dem drehbaren Fuß (P) vorgesehen ist.

3. Wäscheständer (S2) nach Anspruch 2, wobei

- die Verbindungsmittel (M1) eines jeden querlaufenden Endabschnitts (ST) des unteren Querträgers (T1) zwei binokulare, vertikalachsige Stutzen (210) umfassen;

die Verbindungsmittel (M3) einer jeden Stütze (M) Folgendes umfassen:

- eine vertikalachsige Hülse (110), aus der zwei gelochte, übereinander liegende und voneinander beabstandete Konsolen (111) seitlich vorstehen; wobei jede Konsole (111) zwei vertikalachsige, nebeneinander liegende Löcher (112) aufweist und

- zwei vertikalachsige, in die Löcher (112) der Konsolen (111) der Hülse eingesetzte Stifte (113);

wobei die binokularen, vertikalachsigen Stutzen (210) der Verbindungsmittel (M1) eines jeden querlaufenden Endabschnitts (ST) des unteren Querträgers (T1) derart bemessen sind, dass sie genau zwischen den Konsolen (111) der Verbindungsmittel (M3) einer jeden Stütze (M) angeordnet werden können, so dass jeder Stift (113) sowohl in eines der Löcher (112) der Konsolen (111) der Hülse (110) der Stütze als auch in einen der binokularen Stutzen (210) eingesteckt ist.

4. Wäscheständer (S2) nach Anspruch 1, wobei:

- die Verbindungsmittel (M1) eines jeden querlaufenden Endabschnitts (ST) des unteren Querträgers (T1) einen Haken (300) umfassen, der eine vertikale Nut (301) mit einem T-förmigen Profil aufweist,

- die Schwenkmittel (M2), die in jedem Endabschnitt (TT) des unteren Querträgers (T1) vorgesehen sind, an jeder Seite des Endabschnitts (TT) zwei gelochte, übereinander liegende Konsolen (211) und zwei in vertikalachsigen, aus den Konsolen (211) herausgearbeiteten Löchern (212) angeordnete Stifte (213) umfassen;

- die Verbindungsmittel (M3) einer jeden Stütze (M) eine vertikalachsige Hülse (110) umfassen, aus der eine vertikalachsige Rippe (114) mit denselben Abmessungen und demselben Profil wie die vertikale Nut (301) des Hakens (300) der Verbindungsmittel (M1) eines jeden querlaufenden Endabschnitts (ST) des unteren Querträgers (T1) seitlich vorsteht, derart, dass die Rippe (114) der Hülse (110) der Stütze (M) in die vertikale Nut (301) des Hakens (300) des unteren Querträgers (T1) eingesetzt ist.

5. Wäscheständer (S2) nach Anspruch 3 oder 4, wobei die Hülse (110) und der drehbare Fuß (P) die Bodenräder (12, 23) tragen.

Revendications

1. Séchoir à linge (S2) sur pieds perfectionné comprenant :

- un châssis composé de deux montants (M) et une traverse inférieure (T1) qui relie inférieurement les deux dits montants (M) ; chaque montant (M) comprenant une base (B), destinée à être orientée vers le sol ;

- deux paires opposées de pieds pivotants (P) reliés au châssis, où chacun des pieds pivotant a un axe vertical ;

- au moins une clayette basculante (G) soutenue par lesdits montants (M) et supportée par une paire opposée et coaxiale de goujons qui débordent des deux dits montants (M), de sorte que ladite au moins une clayette basculante (G) puisse être déplacée entre une position de repos, où ladite au moins une clayette basculante (G) assume une position verticale, et une position de fonctionnement, où ladite au moins une clayette basculante (G) assume une position horizontale, débordante par rapport aux deux dits montants (M), où ladite traverse inférieure (T1) comprend deux segments terminaux d'extrémité (TT) et deux sections transversale d'extrémité (ST), où lesdits segments terminaux d'extrémité (TT) de ladite traverse inférieure (T1) comprennent des moyens de pivotement (M2) pour la rotation, autour d'axes verticaux correspondants, des dites paires opposées de pieds pivotants (P), et lesdites sections transversales d'extrémité (ST) de ladite traverse inférieure (T1) comprennent des moyens de connexion (M1) pour relier la traverse inférieure (T1) aux deux montants (M) ; chaque montant (M) présentant, en correspondance de sa base (B), des moyens de connexion (M3) façonnés de manière à coopérer avec lesdits moyens de connexion (M1) prévus dans la section transversale d'extrémité (ST) de ladite traverse inférieure (T1) ;

caractérisé en ce que ladite traverse inférieure (T1) est moulée dans une seule pièce en plastique et renforcée avec une âme interne métallique et des rainures prévues le long du bord supérieur de la traverse inférieure (T1).

2. Séchoir à linge (S2) selon la revendication 1, où :

- lesdits moyens de pivotement (M2) prévus sur chaque segment terminal d'extrémité (TT) de ladite traverse inférieure (T1) comprennent, en correspondance de chaque côté du dit segment terminal d'extrémité (TT), deux tablettes (211) percées et superposées, ainsi que deux fiches (213) disposées dans lesdits orifices (212) à axe vertical réalisés dans lesdites tablettes (211) ;

chacun des dits pieds pivotants (P) comprenant une portion d'attache (Z) à la traverse inférieure (T1) présentant un orifice (P1) à axe vertical et dimensionnée de façon à pouvoir être exactement interposée entre ladite paire de tablettes (211) superposées des moyens de pivotement (M2), avec l'orifice (P1) disposé de manière coaxiale par rapport aux orifices (212) de ladite paire de tablettes (211) superposées, de sorte que chaque fiche (213) des moyens de pivotement (M2) de ladite traverse inférieure (T1) soit enfilée dans les orifices (212) des tablettes (211) et dans l'orifice (P1) prévu dans le pied pivotant correspondant (P).

3. Séchoir à linge (S2), selon la revendication 2, où

- lesdits moyens de connexion (M1) de chaque section transversale d'extrémité (ST) de ladite traverse inférieure (T1) comprennent deux embouchures juxtaposées pliables (210), à axe vertical ;

lesdits moyens de connexion (M3) de chaque montant (M) comprennent :

- un manchon (110) à axe vertical, duquel débordent latéralement deux tablettes (111) percées, superposées et écartées entre elles ; chaque tablette (111) présentant deux orifices (112) à axe vertical, juxtaposés entre eux et

- deux fiches (113) à axe vertical, enfilées dans les orifices (112) des tablettes (111) du manchon ;

lesdites embouchures juxtaposées pliables (210) des moyens de connexion (M1) de chaque section transversale d'extrémité (ST) de ladite traverse inférieure (T1) étant dimensionnées de façon à pouvoir être exactement interposées entre lesdites tablettes (111) des moyens de connexion (M3) de chaque montant (M), de sorte que chaque fiche (113) soit enfilée tant dans l'un des orifices (112) des tablettes (111) du manchon (110) du montant que dans l'une des embouchures juxtaposées pliables (210).

4. Séchoir à linge (S2), selon la revendication 1, où :

- lesdits moyens de connexion (M1) de chaque section transversale d'extrémité (ST) de ladite traverse inférieure (T1) comprennent un crochet (300) présentant une rainure verticale (301) ayant, en section, un profil en forme de « T »,

- lesdits moyens de pivotement (M2) prévus sur chaque segment terminal d'extrémité (TT) de ladite traverse inférieure (T1) comprennent, en correspondance de chaque côté du dit segment terminal d'extrémité (TT), deux tablettes (211) percées et superposées, et deux fiches (213) disposées dans les orifices (212) à axe vertical réalisés dans lesdites tablettes (211) ;

- lesdits moyens de connexion (M3) de chaque montant (M) comprennent un manchon (110) à axe vertical duquel déborde latéralement une nervure (114), de dimensions et profil identiques à la rainure verticale (301) du crochet (300) des moyens de connexion (M1) de chaque section transversale d'extrémité (ST) de ladite traverse inférieure (T1), de sorte que ladite nervure (114) du manchon (110) du montant (M) puisse être enfilée dans la rainure verticale (301) du crochet (300) de ladite traverse inférieure (T1).

5. Séchoir à linge (S2) selon la revendication 3 ou 4, où ledit manchon (110) et lesdits pieds pivotants (P) soutiennent des roues d'appui au sol (12, 23).

Drawing