FR2499696A1 - FURNITURE REFRIGERATOR SUITABLE FOR RAILWAY CARS AND OTHER VEHICLES SUBJECT TO HIGH VIBRATION - Google Patents

Abstract

REFRIGERATION BLOCK WITH REFRIGERATOR COMPARTMENT EQUIPPED WITH AN ACCESS OPENING THAT CAN BE CLOSED BY A DOOR SUPPORTED ON EITHER SIDE OF THE ACCESS OPENING. MEANS ARE PROVIDED IN THE SUPPORTS 11 OF THE DOOR 14 TO ALLOW IT TO MOVE UP AND DOWN AS WELL AS IN AND DOWN TOWARDS COMPARTMENT 12 AND ITS ACCESS OPENING 13 IN ORDER TO COVER THIS WHEN DOOR 14 IS CLOSELY JUXTAPOSED WITH COMPARTMENT 12 AND ALLOW TO MOVE DOOR 14 OUTSIDE AND UP TO REMOVE IT FROM ITS POSITION CLOSELY ADJUSTED TO COMPARTMENT 12 AND DISCOVER THE OPEN 13 APPLICATION TO THE EQUIPMENT OF RAILWAY CARS.

Description

Innumerable refrigeration units have been proposed

  with innumerable configurations and

  positions of furniture, rooms or compartments. The or-

  access to these compartments is usually

  mated by a door that is designed to fit tightly to the surface surrounding the access opening when

  the door is closed. These doors are generally

  jetties in the closed position by a latch which can even

act magnetically.

  Although earlier types of repository blocks

  Frigmentation are generally acceptable for use

  domestic and industrial sectors, they have serious

  when trying to use them in other environments. For example, on railway trains, trucks, vans, buses and aircraft where considerable vibrations are expected to occur and where congestion plays a major role,

  existing or proposed refrigeration have many

  serious disadvantages. For example, they occupy too much space initially and even more when the access door

  is in the open position or while maneuvering; the vi-

  predictable movements have the effect that, in the best

  cases, the normal securing of the door in posi-

  formed by the latch and consequently the application

  tightness of the door to the immediately adjacent surface

  at the access opening and surrounding it, do not

not done in a safe way.

  It is obvious that a refrigeration unit that does not have these serious disadvantages would be very

  desirable and respond to a long-standing need

time.

  The subject of the invention is a refrigeration block

  including a compartment, chamber or piece of furniture

  refrigerator which is not subject to any of the aforementioned drawbacks of the prior art, which requires only a minimum of floor space, both in the closed position and in the open position of the access door to the refrigeration compartment and which furthermore is not susceptible to unintentional opening of the access door as a result of vibration or other. Df- such a device, the

  door planned to close! werte d'aocès of the

  The refrigerator is mounted so as to provide secure locking and sealing of the surface around the access hatch. The door is capable of vertical movement up and down in suitable door supports, being mounted in vertical guides holding claws so that the door can be moved to the door. or down along the vertical guide <t to the inside and down towards the manr access door. to close it with sternness and to apply it

  sealed to the surface surrounding this opening, and ú'-

  that the door, when closed, be maintained

  by gravity in the closed position and in cooperation with

  with the surface surrounding the access opening.

  The invention is illustrated, in several preferred embodiments, by the accompanying drawings in which: Figure I is a perspeotive view of a refrigeration unit according to the invention; the dash indicates the door in the closed position and the dash indicates a lowered position of the door for the insertion of the door.

  upper rod which constitutes the superior mounting means

  laughing; the solid line represents the door in

  green and also in the insertion position of the

  which constitutes the lower mounting means.

  FIG. 2 is a sectional view along the line

Figure 2-2 of Figure 1.

  Figure 3 a sectional view of the league

3-3 of Figure 2.

  FIG. 4 is a view similar to FIG.

  re 3 showing a variant of the invention which presents a

  guide upwards, the door being in the closed position

nted.

  FIG. 5 is a sectional view similar to FIGS.

  3 and 4, but showing a variant of the invention which has an upwardly directed guide and support claws for holding the door in the open position, the

  door being shown in open position.

  Reference will now be made to the accompanying drawings

  to better understand the invention; all the parts

  essential parts are numbered and the same references

  designate corresponding parts, or use

  read numbers increased by 100 to designate

corresponding parties.

  In a preferred embodiment, the refrigeration unit of the invention is represented by FIG. 1. Variations of the invention are represented by the

  Figures 4 and 5 and described in more detail below.

  The refrigeration unit is designated by the

  10. The refrigerator compartment is indicated at 12. The compartment door 14 is shown in dashed lines at 14a in the closed position, solid line at 14 in the open position and dash at 14b in position.

  lowered, for mounting the door in a vertical guide

  placed, as shown, in sup-

  door ports 11 constituting the inner face of tubular front legs 16, for example rectangular or square. The guide 20 has claws 28 inclined downwards and inwards, to bring the door

  in the immediate vicinity of access opening 13 of the

  12 refrigerator in order to close it by bringing

  the door in sealing cooperation with the general surface

  plane 15 of the front panel 21, surrounding the

  access opening 13 of the compartment 12. A seal 34 is

  seen to facilitate the tight fitting of the door 14 to the surface of the front panel 21 surrounding the access opening 13 of the compartment 12. A suitable recess 30 is provided in the front or outer surface of the door 14, a handle rod shape 32 being provided

  in this recess to open and close the door, the de-

  place along the guide 20 and bring it to the claws 28.

  In the case shown, the recess of the door is dis-

  posed horizontally but we understand that it can all

  to stand vertically or to have any other

  The configuration may be circular, for example, and the handle may also have any suitable configuration which, advantageously or preferably, does not consume wasted space and does not extend beyond the surface.

  the recess where it is located. Inside the door

  hollow 14 is housed an insulator 29. In the case

  the door is arranged so that it can slide

  in the door supports 11 and has holes or openings 26, 26, the rod 22 passing through the door 14 from one side to the other and being supported inside the door by the insulator 29 and on the sides of the door through the holes or openings 26, 26. Outside the door, the rods 22, 22 are supported by guides 20, 20

and / or claws 28, 28.

  At the top of the refrigeration block 10 is dis-

  placed the lid 19 and at the top of each of the feet

  16 and posterior legs 18 is placed a cap 17. Or, the top of the refrigeration block

  can be closed with one lid and you can

  The construction materials of the pan-

  anterior bucket 21, cover 19, caps 17 and feet 16 and 18 may be any suitable materials

  such as stainless steel, glass fibers,

  plastics, aluminum, another metal, of the moment

  that this material is characterized by sufficient resistance

  health, stainless steel being preferable for

  outer skin or the outer surfaces of all

  elements and for door supports and tubular feet

  which they can be part of. On the sides of the

  refrigeration unit 10 can advantageously be

  The framed compartment 23, as shown, is surrounded by an insulator 27 which, as shown in FIG. 3, is provided with framed gratings 23 which may also exist at the rear (not shown) of the unit. usually surrounds the compartment completely on five sides. In the case represented by FIG. 3 for example, the insulator 27 is provided between the lower plate 25 and the lower wall of the

  compartment 12 and above this compartment.

  This insulator is preferably but not necessarily formed by foaming in place and is usually an alveolar polyurethane formed either by the prepolymer process or by the single-phase process and in any case it has a low K-factor generally about 2.2, as is usual. The exact isolation mode

  refrigerator compartment and its configuration.

  its mode of support within the

  refrigeration and the special means used to

  kill refrigeration are irrelevant to the invention.

  as long as the refrigeration unit is working

as such.

  As the drawings show, ways of

  upper and lower door, constituting rods 22, 22, are vertically spaced from each other so as to mount the door 14 slidably in guides 20, 20 and these guides 20, 20 have claws 28, 28 whose vertical spacing corresponds to that of the mounting means 22, 22 of the door. In the case shown, the vertical guides 20, 20 mounted in opposite door supports 11, 11 constituting the wall of rectangular front legs 16, 6 and these

  guides are spaced outward relative to the

  portion of the refrigerator 12 and its front panel 21. The claws 28, 28 are inclined inwards and

  down towards the access opening 13 of the com

  12 so that the door 14 can be moved along the vertical guide 20, bring it to the claws 28, 28 and

  out of them and make him take and leave the posi-

  sealing relationship to the panel surface

  previous 21 surrounding the access overture of a compartment

  12. Finally, it is easy to

  push gate 14 to the position of

  on the claws 289 28- lin: and oes of

  Step by step! 22p, gis -m pot jump the door 14 to the ri uet and 1 l l E i of claws so that it rest in -c iton = e-juxtaposed at the end of -t- - _ 28, to the sufas

  this 15 of the anterior panel 21 esto! r - '' - l1cuóturde d'ac-

  13 of the Compartment 12o Ban ole2- 14 'o "- the' o'-

  14 is in place covering the 13th century

  adapted to the watertight face 15

  21 surrounding the opening ld'oe & refrigerator compartment 12, Gums or ila said above, ceStt

  sealing is seatedStated by a joirt 34: ib at the pXri-

  door window 14 eS which has teeth: us such quail

  surrounds the access o-twvrtu: 13 of August 12 and

  Dlique in a way against l! urface -z1 of the panel 21 when the door 14 and its mounting means, the rods 22, 22, are brought inwardly and downward along the claws 28, 28 j-usqueà their extremities when

  the door 14 is in the closed position and closely juxtaposed

  posed on the front panel-- 212 it is not exposed to

  free or easy to open as a result of vibra-

  because closure is obligatory,

  from the inclination of the claws 28, 28 inwards

  and down, assisted by gravity.

  To mount the door 14 in the guide 20, simply insert the door 14 between the front legs 3016, 16 and insert the mounting means, in the form of rods 22, 22, through the hole or opening 24 of the opposite wall of one of the tubular legs 16, through

  the guide 20 of the inner door support 11 which constitutes

  kills the wall of the tubular leg 16, through the insulator 29 of the interior of the door 14, out through the hole or opening 26 of the opposite side and bring them back into the guide 20 of the door support opposite. To facilitate removal, a second hole or opening 24 may

  Be provided in the opposite wall of the second tubular foot

  re, just opposite the first opening 24 so that, when it is desired to remove the mounting means in the form of rods 22, it is sufficient to bring them inwardly through one of the openings 24 so that they protrude out of the second opening 24, after which they can easily be grasped and pulled outwards

to remove them.

  One of the mounting means 22 being in place, through the door 14 and in the guide 20, on both sides of

  the door, it is easy to align the second means of

  door and complete the process. Thus, firstly, the upper mounting means have been inserted,

  can simply lift the door so that the hole or-

  vertex 26 near the bottom of the door 14 is aligned with the

  hole or opening 24, after which we can insert the

  twelfth stem exactly the same way. Or, if the lower mounting means has been inserted first, it is simple to let the door down further down the guide 20 so that the upper hole 26 aligns with

  hole 24, after which we can repeat the process of in-

  stem sertion. Of course, in the variant of the

  4 or 5, the stem insertion openings 24, 24 for

  could be placed vertically above

  refrigerator compartment, in 120 guides

to the top.

  For the operation of the refrigeration unit

  according to the invention, the most convenient, to access the

  12 through the opening 13, is to grasp the handle 32

  placed in the recess 30 and to exert an energetic traction

  outward and upward, so as to

  door 14 of its sealing cooperation with the

  21 and the surface 15 thereof surrounding the opening

  access port 13 of the compartment 12. When the door 14 and its

  vertical guides 20, 20 are spaced outward relative to each other

  the front panel 21, the rods 22, 22 may

  slide in the guides 20, 20 to move to the position

  14 downwardly, indicated in Dlein line in Figure 1. After introducing products into the compartment 12 or removed, it was bait simply reverse the process by moving the door 14 upwards until the rods 22, 22 are aligned on

  claws 28, 28, then pushing or pulling the door

  inward and downward using the handle

  32 located in the recess 30 to bring it to the position

  14a shown in dashed line in FIG.

  to bring the door back to the closed position, in cooperation

  sealing with the surface 15 of the panel 21

  In FIG. 1, the door 14 is shown in phantom in the lowered position 14b, after insertion of the upper mounting means in the form of the rod 22 and

  before we lift the door to insert the means of

  lower stage, in the form of the lower rod 22,

in the same way.

  Figure 4 shows a variant of the control block.

  refrigeration of the invention o the guide 120 is directed towards

  the bottom for opening up the door 114a re-

  presented in closed position, when grasping the handle 132 of the recess 130 (not shown) and pushing

  up along the guide 120. As shown by the

  4, the door support 111 is a part of a foot

  tubular and in the usual way, it is usually direc-

  normally at the anterior panel 121 while the guide

  120, above the access opening 113 of the compartment

  112, is simply a rectilinear vertical guide.

  In contrast, Figure 5 shows another embodiment of the variant of Figure 4. Figure 5

  shows the door 114 in the open position above the door

  refrigerator part 112 and above the claws.

  128, the upper mounting means in the form of shank 122 being in place in the opening or support locking claw 136. This support claw helps to maintain

  the door 114 in the open position when the vertical guide

  120 upwardly directed cal is present in the door support 111. In the case shown, there is only one set of support claws 136, 136, but it will be understood immediately that an additional set (for example inferior) of support claws can be provided in the

  vertical guides 120, 120. The only disadvantage of the

  positively downward in relation to the

  tif upward is the need for prolongation

  up the 111 door supports that must

  generally exceed the top of the refrigeration cabinet

  as such, for example going upwards

the lid 119.

  As shown in FIGS. 3 and 5, when the door 14 or 114 runs in the guide 20 or 120 in spaced-apart position from the front panel 21 or 121 outwards, the inner or rear surface of the door 14, 114 and the joint 34, 134 that it bears are out of contact with the anterior panel 21, 121 while, as shown

  FIG. 4, when the door 114a is pushed towards the

  along the claws 128, 128, its interior surface

  re and especially its seal 134 applies so

  watertight on the surface of the anterior panel 21, 121

  the access opening 13, 113 of the compartment 12, 112.

  It will be understood that instead of previous feet

  rectangular or square 16, we could use

  tubular legs, for example round, oval, pentagonal

  gonaux, hexagonal etc., in which case the door supports

  11 would be constituted in each case by the surface area

  the tubular foot of each side of the door 14,

  adjacent to the surface 15 of the front panel 21 which

  turn the access opening 13 compartment 12. In-

  it is obvious that the door support could

  take other forms, for example that of a corneal

  re, an elongated flat plate or the like. However, in their preferred form, the door supports do indeed constitute a surface or part of tubular feet

  preferably rectangular and especially squared.

  Such a construction is considered as more important because then the means of mounting sou? Frs 22, 22 may have their hermits inside the tubular feet so that they are not easy. to withdraw fortuitously and certify p & - aocidente3lemento In addition although ba.e refrigeration of

  the invention must be specially designed to serve in

  with refrigerant means-n hu tye Peltier, it is not necessary to consider the bi, 3 according to the invention as limited to the use with ds. means of this type because one can use any type apopri4L means

  refrigeration system for cooling purposes.

  inside the refrigerator compartment and it is completely

  it is not important that coez do means. or part of them are located inside or outside the block according to the invention, as long as they have the effect of cooling inside.

compartment.

  Given the lock on performed according to

  l: invention by means of claws 28, 28 and 128, 128

  inward and downward, the blocks according to

  the invention are able to withstand strong vibrations.

  and even to shocks without opening, at least partially

  thanks to the assistance of gravity to maintain

  the door in a position surely closed. The refrigeration block

  ration of the invention requires a minimum of space,

  whether in the open or closed position or between

  and access to the compartment is achieved

  simple and easy. By raising or lowering the door

  cases, it is easy for the door to

  pledge the compartment. The closure is simply done by bringing the door to align with the inclined claws

  inward and downward, intended for a firm

  ture, then pushing down and

  to bring the door and its seal to the closed position

  or cover and sealing vis-à-vis the surface surrounding the access opening of the compartment. A simple reverse movement, for example to the outside

  and upwards, serves, of course, to clear or disengage

  open the opening to access the compartment.

Claims (16)

  1. Refrigeration block with storage compartment   refrigerator with an access opening which can be   by a door supported on both sides of the door.   access, characterized in that that means are pre-   seen in the supports (11) of the door (14) for him   put to move up and down as well   only inward and downward towards the   (12) and its access opening (13) to cut   when the door (14) is tightly juxtaposed   placed on the compartment (12) and to allow the   door (14) outwards and upwards for removal   from its position closely juxtaposed with the compartment   (12) and discover the access opening (13).   2. Refrigeration unit with cooling compartment   operator with an access opening that can be closed   by a door and surrounded by an outer surface,   in that means are provided on both sides of the   the access opening (13) for slidably mounting a door (14) which can be brought into position   closed over the access opening (13) and cooperatively   with the surface (15) surrounding the   ci, by pushing the door (14) inwards and downwards and by juxtaposing it closely to said surface (15) the opening door (14) disengaging from its cooperation   sealing with said surface (15) when it is   outward and upward.   Block according to claim 2, characterized in   it includes ways to open up more   the door (14) by pushing it downwards.   4. Block according to claim 2, characterized in that it comprises means for further opening   the door (14) pushing it further upwards.   5. Refrigeration unit with cooling compartment   a giver having an access opening which can be closed by a door and surrounded by a surface, said door being adapted to apply sealingly to said surface   and close the opening when the door is tightly juxtaposed   placed on said surface, characterized in that opposite-facing door supports (11) are provided on either side of the opening (13) on the sides of said surface (15). opening (15) with vertical guides (20) provided in the door supports (11) and spaced from said surface (15), the door (14) having   on each side of the upper and lower mounting means   are spaced apart vertically from one another for the   sliding floor of the door (14) in the guides (20) which comprise claws (28) spaced vertically   each other to the same extent as the means of   floor and tilted inwards and downwards in di-   rection of the opening (13) so as to place the door   (14) over the opening (13) and in cooperation with   with said surface (15) when pushed inwardly and downwardly along the claws (28), so that the door (14) can be moved along the vertical guide (20) so that to bring it into the claws (28) and out of them to close the opening (13) and to   to adapt it sealingly to said surface (15), the por-   (14) can open up and stop the adaptation of   che. Block according to Claim 5, characterized in   the door supports (11) are substantially normal   sore on the surface (15) surrounding the opening (13).   Block according to Claim 5, characterized in that each door support (11) comprises a part   a foot (16) supporting the block (10).   8. Block according to claim 5, characterized in that the door supports (11) and their guides (20) extend vertically enough distance to allow the door (14), in the open position, to clear the opening (13).   9. Block according to claim 8, characterized in that the vertical guides (20) extend vertically   upwards to the extent indicated.   10. Block according to claim 9, characterized in that the vertica guides (20) extend upwardly to a sufficient extent to allow the door (14) to release the cladding (15) of support claws. (28) being provided in a vertical direction by vertical guides (20) to maintain the position. (} - Qn pto- Iio open 11o B3loc according to the vondiQ-ion e-oarotérisé   in that the green guides (20) (e) vertical tooth   down to the extent of ii.4e.   12. Block according to the rveudicaion 119 oaractri-   in that the door supports (1 and 1, guides (20) extend green down to a sufficient height to allow the door (14) to clear the opening   (13) and to go further still.   13. Block according to claim 7, characterized in that the door support (1l) oomprinha me part   a tubular element constituting a foot (156) which door block (10o   14. Block according to claim 13,   in that the wall of a tubular element (16),   opposite the vertical guide (20), has an opening   for inserting mounting means (22) into   the door (14) through this opening.   Block according to claim 14, characterized   in that the opening is provided in a wall (11) of the two tubular elements (16) on opposite sides of the door (14).   16C Block according to claim 14, characterized   in that the mounting means is a rod (22).   17. Block according to claim 15, characterized   in that the mounting means constitutes a rod (22) passing through the door (14) from one side to the other and guided by sliding way.   Block according to claim 17, characterized   in that the door (14) is insulated and the rod (22)   crosses from one side to the other and also passes through the iso- lant (29) o   Block according to claim 17, characterized   characterized in that the door supports (11) and their guides (20) extend vertically far enough to allow a rod (22) to be inserted through the opening (13) and through the door (14), to constitute the means of   both upper and lower floor of the door (14).   Block according to Claim 5, characterized in that the door (14) has a seal (34) for its   watertight adaptation to the surface (15) surrounding the opening   re (13) when closely juxtaposed with this surface (15).   21. Block according to claim 5, characterized in that the door (14) comprises an outer surface having a cavity or recess (30) and a handle (32) placed in the latter.