Hospital gas cylinder trolley with semirigid securing straps
The invention relates to a mobile trolley ( 1 ) comprising a baseplate ( 2 ), several castors ( 3 ), a support structure ( 4 ) projecting upwards from the baseplate ( 2 ), and at least one securing device ( 30 ) arranged on the support structure ( 4 ) for securing one or more gas cylinders ( 50 ) to the support structure ( 4 ). Each securing device ( 30 ) comprises a first strap element ( 31 ) comprising a free first end ( 31.1 ), and a second strap element ( 32 ) comprising a connecting device ( 20 ), these elements becoming secured to one another when the free first end ( 31.1 ) of the first strap element ( 31 ) is collaborating with the connecting device ( 20 ) of the second strap element ( 32 ). The strap elements ( 31, 32 ) are made of semirigid polymer. Use of such a trolley ( 1 ) for transporting one or more gas cylinders containing an NO/N 2 mixture and/or oxygen.
1 . A mobile trolley ( 1 ) comprising:
a baseplate ( 2 ) configured to accommodate at least one gas cylinder ( 50 ), several castors ( 3 ) for moving the trolley along the ground, a support structure ( 4 ) projecting upwards from the baseplate ( 2 ), and at least one securing device ( 30 ) arranged on the support structure ( 4 ) for securing said at least one gas cylinder ( 50 ) to said support structure ( 4 ),
wherein said at least one securing device ( 30 ) comprises a first strap element ( 31 ) comprising a free first end ( 31 . 1 ), and a second strap element ( 32 ) comprising a connecting device ( 20 ), said first strap element ( 31 ) connecting with the second strap element ( 32 ) to allow the first strap element and the second strap element to be secured to one another when the free first end ( 31 . 1 ) of the first strap element ( 31 ) is connected with the connecting device ( 20 ) of the second strap element ( 32 ),
wherein the first strap element ( 31 ) and second strap element ( 32 ) are made of semirigid polymer, and
the connecting device ( 20 ) of the second strap element ( 32 ) comprises:
a main body ( 21 ) through which passes an internal passage ( 22 ) extending between an entrance ( 22 . 1 ) and an exit ( 22 . 2 ) and which is configured to accommodate at least part of the first strap element ( 31 ),
immobilizing means ( 23 ) capable of moving between at least two positions, comprising:
an immobilizing position in which the immobilizing means ( 23 ) connects with a relief textured region ( 310 ) of the first strap element ( 31 ) inserted into the internal passage ( 21 ), so as to prevent and oppose any withdrawal movement of said first strap element ( 31 ) from the internal passage ( 21 ), and
a releasing position in which the immobilizing means ( 23 ) allow withdrawal movement of the first strap element ( 31 ) from the internal passage ( 21 ),
release means ( 24 ), capable of being actuated by a user, connecting with the immobilizing means ( 23 ) in order to cause the immobilizing means to pass from the immobilizing position to the releasing position, when actuated by the user, and
tightening means ( 250 ), capable of being actuated by the user, configured to connect with the relief textured region ( 310 ) of the first strap element ( 31 ), when the first strap element ( 31 ) is inserted into the internal passage ( 21 ) of the connecting device ( 20 ) of the second strap element ( 32 ) and
wherein when also the immobilizing means ( 23 ) are in the immobilizing position, when they are actuated by the user, the tightening means ( 250 ) cause the first strap element ( 31 ) to progress translationally within the internal passage ( 21 ) of the connecting device ( 20 ), in the direction of insertion.
2 . The trolley according to claim 1 , wherein the first strap element ( 31 ) is configured to be inserted, via the free first end ( 31 . 1 ), into the internal passage ( 22 ) of the connecting device ( 20 ) of the second strap element ( 32 ), via the entrance ( 22 . 1 ) to said internal passage ( 22 ) of the connecting device ( 20 ), via a translational movement.
3 . The trolley according to claim 1 , wherein the relief textured region ( 310 ) comprises a succession of ribs ( 311 ) arranged parallel to one another, preferably straight ribs ( 311 ).
4 . The trolley according to claim 3 , wherein the ribs ( 311 ) each have a front side ( 311 . 1 ) forming a ramp, and a rear side ( 311 . 2 ) that is vertical, these sides being separated by a crest ( 314 ).
5 . The trolley according to claim 1 , wherein the relief textured region ( 310 ) is borne on an external face ( 312 ) of the first strap element ( 31 ).
6 . The trolley according to claim 1 , wherein the tightening means ( 250 ) comprise a lever element ( 25 ).
7 . The trolley according to claim 6 , wherein the lever element ( 25 ) is able to pivot.
8 . The trolley according to claim 6 , wherein the lever element ( 25 ) comprises a distal portion ( 25 . 2 ) that comes into connection with the textured region ( 310 ) of the first strap element ( 31 ) when the first strap element ( 310 ) is accommodated in the internal passage ( 21 ) of the connecting device ( 20 ) of the second strap element ( 32 ).
9 . The trolley according to claim 7 , wherein the lever element ( 25 ) further comprises a proximal portion ( 25 . 1 ) that can be actuated by the user in order to cause the lever element ( 25 ) to pivot.
10 . The trolley according to claim 3 , wherein the ribs ( 311 ) are configured to allow the first strap element ( 31 ) to be inserted into the internal passage ( 21 ) of the body of the connecting device ( 20 ) but prevent the first strap element ( 31 ) from being withdrawn from said internal passage ( 21 ) when the immobilizing means ( 23 ) are in the immobilizing position and connecting with the ribs ( 311 ).
11 . The trolley according to claim 10 , wherein the ribs ( 311 ) form raised serrations juxtaposed with one another.
12 . The trolley according to claim 8 , wherein when the lever element ( 25 ) is actuated by the user and pivoted, the distal portion ( 25 . 2 ) of said lever element ( 25 ) comes to bear against a vertical rear side ( 311 . 2 ) of at least one of the ribs ( 310 ) in order to apply thereto a thrusting force that is sufficient to cause the first strap element ( 31 ) to effect a translational movement within the internal passage ( 21 ) of the connecting device ( 20 ) in the direction (F) of insertion of the first strap element ( 31 ).
13 . The trolley according to claim 12 , wherein when the immobilizing means ( 23 ) are in the immobilizing position and the lever element ( 25 ) is actuated by the user, the translational movement of the first strap element ( 31 ) within the internal passage ( 21 ) of the connecting device ( 20 ) in the direction of insertion (F) is not prevented.
14 . The trolley according to claim 1 , wherein in the immobilizing position, the immobilizing means ( 23 ) press against the textured region ( 310 ) borne by an external face ( 312 ) of the first strap element ( 31 ), via a proximal part that forms an immobilizing- cam element ( 230 ).
15 . A method of using a trolley ( 1 ) according to claim 1 , for transporting one or more gas cylinders containing at least one of an NO/N2 mixture and oxygen.