CA1088378A - Device for fixing cargo containers moved by carriage to point of stowage in aircraft containers - Google Patents

Device for fixing cargo containers moved by carriage to point of stowage in aircraft containers

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Publication number
CA1088378A
CA1088378A CA292,098A CA292098A CA1088378A CA 1088378 A CA1088378 A CA 1088378A CA 292098 A CA292098 A CA 292098A CA 1088378 A CA1088378 A CA 1088378A
Authority
CA
Canada
Prior art keywords
rod
carriage
containers
arm
spring
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
Application number
CA292,098A
Other languages
French (fr)
Inventor
Jury N. Ivanov
Konstantin V. Artemov
Leonid I. Suris
Jury F. Bozhenov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA292,098A priority Critical patent/CA1088378A/en
Priority to CA000357829A priority patent/CA1118282A/en
Application granted granted Critical
Publication of CA1088378A publication Critical patent/CA1088378A/en
Expired legal-status Critical Current

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Abstract

ABSTRACT OF THE DISCLOSURE

The novelty of the invention resides in that each stop individually fixing the container in the aircraft compartment has a cylindrical body accommodating a coaxial spring-loaded rod with a circular recess in the middle, said rod being ar-ticulated to one end of a turnable rocker installed on the body, the other end of said rocker being located on the path of the carriage which contacts said other end and ensures in-sertion of the rod into the body. Besides, there is a spring-loaded locking element mounted in the body boss for entering the circular recess and fixing the rod in the body, said ele-ment being articulated to a two-arm turnable lever installed on the body of the device, the other arm of said lever being located on the path of the carriage which contacts said other arm for withdrawing the locking element from the recess when the rod is being extended from the body.

Description

883~78 The present invention relates to air transpor-~ation o~
containerized cargoes and more particularly it relates to the devices for fixing car~o containers in aircraft compartr ments. ;
~ he invention will be utilized rnost successfully for auto --matic fixing of cargo containers carried by aircraft.
Kno-~n currently are several methods of fixin~ contai-ners in aircraft compart~ents, said containers being conveyed -to the point of their stOwage by a ~ovable ele~ent in the form of a carriage.
In one o~ said ~ethods the containers bear a~ainst one another and the end containers are fixed by stops rigidl~
instalied on the e~d walls of the co~partment and contactin~ -the first and the last containers. ~he containers bear against one anol;ner both by their pallets and bodies.
Disadvantages of the above ~ethod of fixing containcrs consist in that the stops mounted on the compart~.ent walls carry th~ load of the total number OL containers held in the compart~ent since all containers thrust ag~nst one. Eence, the end walls of the compartments are subjactedto hea~ loads and have, therefor , to be made solid and h~eavy.
Besides, ~or bearing against the walls, the container bodies must be made exc~ssively stiff which increases the weight of the ~ntire containers. Such a ~ethod of fixing containers against one another co~plicates their handling also because in the case of loading the cargo compartment of the aircra~t with an inco~plete set of containers, it is ne-cessary to provide some additional de~ices for fixing tho end containcrs.
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~88378 Als~ known in the prior art is a dcvice for fixing cargo containers in aircr&ft compartments consisting of stops arran-ged on the compaxtment floor.
Each stop consist~ of a ~ody rigidly fixed on the cargo floor and accommodating an articulated turna~le stop mounted on a hori~ontal axle and occupying one of the two positions in 6ervice, i.e. the working (vertical) position in which the stop bears against the con~ainer pallet and thus fixes the container, and the retracted (horizontal) positionj in both positio~s the stops are loc~ed by spring retainers.Each stop is shi~ed f~om one position to th~ other by hand.
~ efore loadin~ containers into the cargo compartmen~ and moving them there, all the stops on the way of said containers must be retracted ~lhile after placing each container in its place the fixing stops must be shifted to the working posi-tion.
A disadvantage of this de~Jice consists in the use of ma-nual labour for handling the containers and in the necessity for moving each stop by hand from the retracted to t~e wor-king position and back which increases considerably the contai-ner loading and unloading ~e.
~ he main ob~ect of the present invcntion i5 to provide a device for automatic fixing of cargo containers in aircraft compartment s .
Another object of the invention is to provide a device for individual fi~ing of each container in the cargo compartme~t of an aircraft.

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Still another object of the invention resides in ;
raising the reliability of the fixing device.
A further object of the invention resides in curtail-ing the time for loading the containers into and unloading them from the aircraft.
And, finally, one more object of the invention resides in ensuring a possibility of carrying by air any number of containers from one to a maximum number permissible for a given type of aircraft.
These and other objects are accomplished by providing a device for fixing cargo containers moved by a carriage to the point of their stowage comprising stops fastened on the compartment floor and individually fixing each container wherein, according to the invention, each stop consists of a body 5 having a recess accommodating a coaxial spring-loaded -rod with a circular recess in the middle, said rod being articulated to one of the ends of a turnable rocker installed on the body, the other end of said rocker being located on the path of a carriage which contacts said other end and inserts the rod into the body, and there is a spring-loaded locking element installed in a boss of the body for entering into the circular recess and for fixing the rod in the body, said ele- ~;
ment being articulated to a two-arm turnable lever installed on the body of the device, the other arm of said lever being located on the path of the carriage which contacts said arm for withdrawing the locking element from the recess when the rod is extended from the body.

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8t33'7~3 This design of the elements of the device allows each container to be fixed individually and automatically in the cargo compartment of an aircraft.
Now the invention will be described in detail by way of example with reference to the accompanying drawings, in which:
Fig. 1 is a plan view of the aircraft cargo compart-ment with containers, carriage and stops of the device;
Fig. 2 is a section taken along line II-II in Fig. l;
Fig. 3 is a view along arrow A in Fig. 2; and Fig. 4 is a view along arrow B in Fig. 3.
m e device for fixing cargo containers in the compart-ments of an aircraft (Figs. 1, 2, 3, 4) comprises a number of stops 1 to suit the type of the aircraft, secured on the ~-aircraft compartment floor between containers 2.
e containers 2 are moved along the compartment by a carriage 3 sliding over guide rails 4. Each stop 1 comprises a body 5 with a recess accommodating a coaxial rod 6 with a return spring 7.
m e middle portion of the rod 6 is provided with a circular recess 8.
A boss 9 of the body mounts a turnable rocker 10 , installed on an axle 27. One end 11 of the rocker 10 is arti-`l culated to the rod 6 while its other end 12 extends through a slot 13 in the rails 4 and is located on the path of the carriage 3. Besides, the body 5 is provided with a side boss 14 accommodating a locking element 15 with a spring 16. m e , locking element 15 can enter the circular recess 8 through a -, 30 side hole in the body 5 and is articulated to a two-arm B
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turnable lever 17 having arms 28 and 29 mounted on an axle in the body S. The arm 28 of the lever 17 is brought out through a slot 18 in the rails 4 and is located on the path of the carriage 3. When the carriage 3 moves, the rocker 10 and the two-arm lever 17 are turned, respectively, by levers 19 and 20 mounted on axles on the carriage 3, both the rocker 10 and the two-arm lever 17 being turned only when the carriage 3 moves in a certain one direction. When carriage 3 moves in the opposite direction, levers 19 and 20 do not cooperate with rocker 10 and two-arm lever 17, inasmuch as said levers have been turned upon the preceding stroke of the rocker and stay in this retracted position.
The containers 2 are loaded and unloaded through a ;
loading hatch 21. The containers 2 loaded into the aircraft compartment are fixed therein by stops 1 in which case the rod 6 occupies the uppermost position extended from the body 5, the rocker 10 and the two-arm lever 17 occupy, respectively, posi-tions 22 and 23 and the locking element 15 is completely retracted into the boss 14, thereby compressing the spring 16.
For inserting the stops 1 into the compartment floor, it is necessary to press the end 12 of the rocker 10 and shift it to the position 24. This causes the rod 6 to enter the body 5 and compress the return spring 7. When the rod 6 is completely inserted into the body 5, the end of the locking element 15 is moved by the spring 16 into the circular recess 8, moving the two-arm lever 17 to the position 25 and locking the rod 6 in the lower retracted position.

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1(~88378 ~ Jhen the containers 2 are being unloading from the co~partment, the device functions as follows. 3efore the be-ginning of the unloading operation all the stops l must be ex-tended so that the rods 6 occupy the upper position whiie for unloadin~ the containers 2, and conveying them with the c~-riage 3 to the hatch 21 the rods 6 must be retr~cted into the body 5. ~hen the motor of the carriage 3 is turn d on ar.d the carriage is moved to collect the container 2. ~he lever ao passing by the two-arm lever 17 does not contact the latter since said lever 17 is turn~d to the position 2~. ~he levcr 19 of ths carriage 3 comes in contact with the end 12 of the roc'~er lO, turns it to the position 2~ at the same time re-tracting the rod 6 into the body 5 where it is fixed auto~ati-cally b~ the locking ele~ent 15. As soon as the contain~r 2 is grabbed by the carriage 3, the direction of its ~ovement is reversed and the contain~r 2 is conveyed to the hatch 21. ~hc lever 19 passing by the rocker lO in the position 24 does not contact the latter while the lever 20 turns on the carriage 3 without turnin~ the two-arm lever 17 so that the rod 6 stays retracted into the body 5. When the carria~e 3 moves to pick up the next container 2, t~e elements of the device function in a similar ~ay as described above.
When the containers 2 are being loaded into the compart-ment, the device operates as follows. Eefore the be~inning of loading all the stops 1 must be retracted into the bodies 5 so as not t-o interfere with the conveyance of the contai~ners
2 along the compartment-. The carriage 3 conveys the containers 2 to thcir points of stowage in the aircraft cargo compartm~nt.

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1~883~
' Encountering thc two-arm lever 17, the lev~r ~0 presses the latter and withdra~rs the locking ~le~ent 15 from tha circular recess ~ which allows the return sprin~ 7 to shift the rod ~ to the upper position. Ileanwhile the rocker 10 turns to the position 22. ~he container 2 is put in place and ~ixed by the stop l. ~he carriage 3 is brought to the hatch 2~ for picXir.g tha next container and the lever ~0 passin~ the two- -arm lever 17 in position ~6 does ~ot contact it while the le-ver 19 turns on the carriage 3 without turning thc rocker lO.
lo All the follo~;~ing containers are loaded in~o the aircrat compartmerlt in a similar mar.ner.
As distinct from the other known devices the device for fixing containers according to the present invention per-mits reliable automatic fixin~ of containers in aircraft co~-partments due to the introduction o~ a sprin~-loaded rod wit'n a circular recess, a locXing elem~nt, as well as a t~,~o-arm rocker and a tur~able l~ver actuated by t~e movement of the conveying carriage.
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Claims

The embodiments of the invention in which an exclu-sive property or privilege is claimed are defined as follows:
1. A device for fixing containers moved to the point of their stowage in the cargo compartments of an aircraft by a carriage moving along a track, comprising:
stops secured in the compartment floor at least on one side of the track, having a cylindrical body, defining the container locations in the compartment and adapted to fix each container individually;
a spring-loaded rod located inside said body co-axially therewith and adapted to be projected by said spring to a position above said track for fixing the container between the two neighbor stops;
a circular recess in the middle portion of said rod;
a turnable rocker secured on the body pivotally connected by its one end with said rod, its other end being positioned in the carriage traveling path, said carriage contacting said other end of the rod for inserting said rod into said body;
a spring-biased locking member mounted in a boss of said body and adapted to be inserted by the action of said spring into said annular recess and thereby fix said rod in said body;
a two-arm turnable lever secured on said body of the device, one arm of said body being articulated to said locking member and the other arm being located in the path of said carriage which contacts said other arm for withdrawing said locking member from said recess when said rod is being extended from the body.
CA292,098A 1977-11-30 1977-11-30 Device for fixing cargo containers moved by carriage to point of stowage in aircraft containers Expired CA1088378A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA292,098A CA1088378A (en) 1977-11-30 1977-11-30 Device for fixing cargo containers moved by carriage to point of stowage in aircraft containers
CA000357829A CA1118282A (en) 1977-11-30 1980-08-07 Device for fixing cargo containers moved by carriage to point of stowage in aircraft containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA292,098A CA1088378A (en) 1977-11-30 1977-11-30 Device for fixing cargo containers moved by carriage to point of stowage in aircraft containers

Publications (1)

Publication Number Publication Date
CA1088378A true CA1088378A (en) 1980-10-28

Family

ID=4110181

Family Applications (1)

Application Number Title Priority Date Filing Date
CA292,098A Expired CA1088378A (en) 1977-11-30 1977-11-30 Device for fixing cargo containers moved by carriage to point of stowage in aircraft containers

Country Status (1)

Country Link
CA (1) CA1088378A (en)

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