FR2754163A1 - FRYER WITH ROTATING HANDLE - Google Patents

Abstract

Fryer comprising a heated tank 3 receiving a frying bath and arranged in a fryer body 1, a cover and a basket assembly 5 with a support piece 7 which can be fixed in the area of the edge of the fryer body, on which a handle 11 is mounted movable in rotation with a view to moving a basket 17 mounted movable in vertical translation between a low frying position and a high drip position, the handle acting on the basket passing through a transmission system, arranged outside the tank 3 and having a flexible connecting element 19, preferably a metal strip, which is displaceable in translation by rotation of the handle 11 and to which the basket 17 is fixed.

Description

The present invention relates to a

  fryer comprising a heated bowl disposed in a fryer body and receiving a frying bath, a cover, and a basket assembly having a support piece which is removably attached during operation in the edge area of the fryer body , on which a handle is mounted movable in rotation for the purpose of moving a basket and on which the basket is mounted movable in translation vertically between a low frying position, in which the basket is in the frying bath, and a upper drip position, in which the basket is above the frying bath, the handle acting on the basket via a transmission system. On a known fryer of this type, marketed by the company TEFALR under the type "Universalis 1250", a rotary rod rigidly connected to the handle protrudes from the latter in the tank and transforms here, passing through a gear transmission, the rotational movement of the handle or of the rotary rod in a vertical translational movement of the basket in the tank. This has the disadvantage that when the support piece is positioned in the region of the edge of the body of the fryer, the transmission system is essentially inside the tank and thus clogs up during

operation.

  The object of the present invention is to provide a

  fryer designed to remedy this drawback.

  This object is achieved, according to the invention, in the case of a fryer as defined above, by the fact that the transmission system is disposed outside the tank and has a flexible connecting element which is displaceable in translation by rotation of the handle and to which the basket is fixed. The transmission system is thus well protected against fouling, located outside the tank. The rotational movement of the handle is transformed in a first stage of the transmission system into an essentially horizontal translational movement outside the tank. The flexible connecting element which enters the tank and which is connected to the basket serves as the second stage of the transmission system and transforms the horizontal movement of translation into

vertical movement of the basket.

  Preferably, the transmission system is arranged in the handle. For this purpose, it is necessary to provide sufficient space in the handle to accommodate the transmission system. In this regard, it is necessary to ensure that the ergonomic shape of the handle remains preserved. However, it is also possible to have

  the transmission system in the support room.

  To transform the rotational movement of the handle into translational movement of the flexible connecting element, the latter is advantageously connected to a slide guided in the handle so as to be immobilized in rotation and to be movable in rectilinear translation in the handle and the handle has at least one helical guide slide in which the slide is moved in translation in the handle when the latter rotates. This construction method is particularly simple and allows a soft and pleasant handling with acceptable control forces for the rotation of the handle. As a variant, it would also be possible, for example, to transform the rotational movement into a horizontal translational movement by a gear transmission system. From the manufacturing point of view, it is particularly advantageous for the handle to have a rotary actuation tube on

  the wall of which the guide rail is formed.

  According to a preferred embodiment, the handle has a guide tube fixed without the possibility of rotation on the support piece and having rectilinear guide slots in which is guided a pin connected to the flexible connecting element. This makes it possible to ensure good connection to the connecting element by simple means and to prevent with certainty an undesirable rotation if necessary of the flexible connecting element, which contributes to a reduction in the actuation forces required. to move the basket. At least one end position of the basket can be defined in a particularly simple manner by the fact that at least one end section of the guide slot serves as a stop. In order to ensure that the efforts which a user must exert to turn the handle are low, the actuating tube has in its wall a groove of

  helical guide in which the pin is guided.

  During the rotation of the actuating tube, a translational force is exerted on the pin by the respective inner face of the guide groove. The guide groove also provides the possibility of moving the basket in both directions, without technical means.

auxiliaries.

  To improve the control of the fryer, the handle can advantageously be folded against the wall of the body of the fryer when the support piece is held in the region of the edge of the body of the fryer. In order to exclude, if possible, a control error, it is possible, in a preferred embodiment, with a view to folding the handle, to actuate a lock using a release handle, the latter being mounted in the body wall of the fryer. Thus, when the support piece or the basket assembly is removed from the edge region of the body of the fryer, an inadvertent folding of the basket relative to the handle is practically excluded. The mounting of the unlocking handle in the support piece provides less security, but still always greater than that of mounting the unlocking handle in the handle. According to a preferred embodiment, the support piece comprises a first detection device for detecting whether the support piece is detached from the area of the edge of the tank and for subsequently activating a safety device for folding the

  support piece to prevent folding of the handle.

  This arrangement also certainly avoids inadvertent folding of the basket relative to the handle when the basket assembly is removed from the body of the

deep fryer.

  Advantageously, a second device for detecting the fryer detects whether the support piece is detached from the area of the edge of the tank. If this is the case, a basket assembly rotation security prevents rotation of the basket.

handle.

  To improve the comfort of control or handling, at least one latching device is provided in the support part to define at least one preferred angular position of the handle and therefore a selected position of the basket. This is particularly advantageous for the position

  and the draining position.

  To simplify and improve the seal between the area of the upper edge of the tank or of the body of the fryer and the part of the cover cooperating with this area, the support piece is mounted outside the tank on the wall of the latter. and in addition to the connecting element, only a fixing section of reduced section to which is fixed a basket guide device extends inside the fryer through an opening formed between the area of the upper edge of the tank and the lower edge area of the cover. According to a preferred embodiment, the element of

  connection is made in the form of a metal strip.

  This strip has a small section, which facilitates sealing between the tank and the cover, has sufficient rigidity to transmit the translation forces to the frying basket and nevertheless has sufficient flexibility to transform the movement of horizontal translation into movement of vertical translation. Depending on the transmission system chosen and other characteristics of the fryer, the connecting element can also be produced in the form of a

  rubber strap or in the form of a threadlike element.

  Referring to the appended schematic drawings, an embodiment of a fryer according to the invention will be described below in more detail; in the drawings: FIG. 1 is a perspective view of a basket assembly above the area of the upper edge of the body of the fryer, which body is only shown in fragmentary form; Figure 2 is a schematic section, essentially along II-II of Figure 1, the basket assembly being placed in the body of the fryer; Figure 3 is a view of a support part of the basket assembly, taken from the right in Figure 2; Figure 4 is a plan view of the basket assembly, the handle being shown partially in section; Figure 5 is a partial view according to Figure 2, on a larger scale; Figure 6 is a view of the handle shells taken from the left in Figure 5; Figure 7 is a view according to Figure 5, the handle being immobilized in rotation. In Figure 1, there is shown schematically a part of a fryer body 1 on the upper edge of which a heated metal tank 3 is held in a manner known per se by its rolled upper peripheral edge. The tank 3 can be filled with oil or a similar frying bath and can be closed in a manner known per se using a

cover not shown.

  A basket assembly 5 includes a support piece 7 which

  can be mounted in a recess 9 in the fryer body 1.

  On the support piece 7 there is mounted in rotation a handle 11 which extends, in the actuatable state, approximately perpendicular to the circumferential wall of the fryer body 1 outwards. Opposite the handle 11, two parallel guide rods 13 for a basket carriage are fixed to the support part 7. These rods first extend horizontally over the upper peripheral edge of the tank 3, in the latter, and are then bent at about a right angle downward to extend parallel to the inner wall of the tank 3. A basket trolley 15 essentially in the form of a plate is guided movable in translation vertically on the rods of guide 13. A basket 17 intended to receive the products to be fried is in turn fixed in a manner known per se to the carriage 15. Furthermore, a metal strip 19

flexible is fixed to the carriage 15.

  The support piece 7 consists of a yoke 28 which, seen from above, has a U shape, open in the direction of the handle 11. Two opposing nesting tabs 23, in the form of a plate, elastically biased one against the other in the closing direction, are connected by vertical film hinges to the lower end sections, opposite, in the form of a plate, of the load so that they can be applied against the latter in the separated position. The yoke 21 surrounds a handle holder 25 roughly in the form of a socket which is mounted in the yoke so as to be able to rotate about a horizontal axis and which, in FIG. 1, carries by its lower side on the upper edges nesting lugs 23 brought closer to each other by pivoting. To this end, the handle holder 25 can rotate around a folding axis 27 which is fixed in the yoke 21 of the support piece 7. In FIG. 2, an arrow symbolizing a rotational movement is indicated, the folding down of the handle holder 25 and of the handle 11 fixed to the latter, from the horizontal position in which the handle 11 can be actuated, to the vertical storage position in which the handle is folded against the wall of the body of the fryer. While in Figure 2 the basket assembly 5 is shown as being mounted in the fryer body 1, in Figure 1 the basket assembly 5 is shown as being lifted

  upwards out of the fryer body 1.

  The handle 11 comprises a slide guide tube 29 (FIGS. 1, 5) projecting from the handle holder 25 of the support part 7 and produced in a single piece with the latter, this tube having in its wall two slots for guide 31 rectilinear, parallel (Figures 1, 4). The metal strip 19 extends from the carriage 15 essentially along the guide rods 13 first vertically upwards and then, through a slot 32 provided in the yoke 21, horizontally towards a handle slide 33 in the form of barrel inside the slide guide tube (Figures 1, 2). Using a rivet 34, the metal strip 19 is fixed to the handle slide 33 (Figures 1, 4). A pin 35 is fixed, perpendicular to the length of the metal strip 19 and of the slide 33, to the latter so that its two ends are guided movable in longitudinal translation in the guide slots 31 of the guide tube 29 (FIGS. 1, 4). A tension spring 37 is hooked by one end to the slide 33, on the side of the latter remote from the metal strip 19, the other end of this spring, remote from the slide 33, being hooked to a pin 39 held in

  notches 41 at the free end of the guide tube 29.

  During the translational movement of the slide 33 in the guide tube 29, the metal strip 19 is pushed over a curved bearing surface 43 of the handle holder through the slot 32 of the yoke 21 (Figures 1, 5) . In combination with the self-weight of the basket 17 and the frying product, if any, placed in this basket, the metal strip 19 pushes the basket 17 down into the frying bath. During this movement, the tension spring 37 is tensioned and accumulates energy which is intended to reinforce the reverse movement of the basket 17, vertically upwards out of the frying bath, under the effect of

  rotation movement of the handle 11, as described above

  after. The guide tube 29 which is mounted on the support piece 7 so that it cannot rotate around its longitudinal axis and can be folded down around the folding axis 27 is surrounded by an upper handle half-shell 51 and a lower handle half-shell 53 together forming a rotary handle shell, closed towards the outside. The handle shell 51, 53 is mounted on the support part 7 so that it can rotate around its longitudinal axis, unlike the guide tube 29, and can be folded down like the guide tube 29. The handle shell 51, 53 has on the inner face of its peripheral wall a first and a second guide rails 55, 57 in the form of helical grooves. These slides are arranged so that the pin 35 of the slide 33 is guided both in the two parallel guide slots 31 of the guide tube 29 and in the two guide slides 55, 57. By the rotation of the handle shell 51 , 53, a translational force along the longitudinal axis of the handle shell 51, 53 is exerted by the inner flanks of the guide rails 55, 57 in the form of helical grooves, on the two ends of the pin 35. The slope of the propeller of the two guide rails 55, 57 is such that, taking into account the nature of the materials sliding on each other, the tolerances of the constituent parts, the weight of the basket 17 and the accumulation capacity d energy of the tension spring 37, the basket can be raised and lowered over its entire vertical stroke without excessive effort, controlling this movement

  being soft and pleasant for the user.

  With a view to mounting the handle shell 51, 53 on the support part 7 with the possibility of rotation, but without the possibility of axial translation, an upper mounting axis 59 and a lower mounting axis 61,

  parallel and spaced are fixed in the handle holder 25.

  For mounting on these axes, the handle shell 51, 53 comprises, at its end penetrating into the handle holder, a mounting ring 63 with a peripheral groove 65 (Figures 5, 7). The mounting ring 63 also has on its front side a first latching recess 67 and, offset by about 130 relative to this first, a second latching recess 69 (FIG. 6). A latching sleeve 71 which bears by a spring 73 against the inner face of an end wall of the handle holder 25 (FIG. 5) can cooperate with these latching recesses. The snap-in recesses 67 and 69 are arranged on the mounting ring 63 of the handle shell 51, 53 rotatable so that the snap-in sleeve 71 engages, for example in the angular position of the mounting ring 63 and therefore of the handle shell 51, 53, corresponding to the lowered frying position of the basket 17 in the frying bath, in one of the latching recesses 67, 69. The same is valid in the position d draining of the basket 17 above the frying bath. Therefore, it is only possible to rotate the handle shell 51, 53 to get it out of these predetermined positions only provided that a sufficient rotational force is applied to the handle shell 51, 53 so that the snap socket

  71 is released from the respective recess 67, 69.

  To mark or define other preferred positions of the basket 17, other latching recesses may be provided

in the mounting ring 63.

  In the draining position, the latching sleeve 71 enters the first latching recess 67. When the basket assembly 5 is engaged in the wall of the fryer body 1 (FIG. 7) or is removed from this body (Figure 1), a locking yoke 77 (Figure 7) rotatably mounted on the folding axis 27 enters a guide groove 75 formed in a position opposite the first latching recess 67 on the front side of the ring 63. The locking stirrup 77 is pushed upwards in the locking groove 75 by a stirrup tab 79 connected by a film hinge to the lower side of the handle holder 25. This is so, from firstly, when, as shown in FIG. 1, the basket assembly 5 is removed from the fryer body 1. As soon as the support piece 7 has left the recess 9 of the fryer body 1, the two interlocking tabs 23 fold against one another and thus pass below the handle holder 25. From this in fact, the rotation of the handle holder 25 around the folding axis 27 is prevented in principle. This is also the case, on the other hand, when, when the support part 7 is put into place in the recess 9 of the fryer body 1, the two interlocking lugs 23 are spaced apart from one another. 'other and pushed against the inner wall of the plate-shaped end portions of the yoke 21, by a lever or folding button 81 trapezoidal, mounted in the region of the recess 9, so that the handle holder 25 and the bracket tab 79 bear on a bearing surface

  82 of the fold-down button 81 (FIG. 7).

  By pushing the folding button 81 against a button spring 82 which is guided and rests in the fryer body 1, the folding button 81 comes out of engagement with the caliper tab 79 (Figure 5). Since, in addition, the nesting lugs 23 are pushed by the folding button 81 out of the pivoting region of the handle holder 25 between the plate-shaped end portions of the yoke 21, the lug d the stirrup 79 is released downwards by pivoting, under the effect of its preload, so that the locking stirrup 77 comes out of engagement with the locking groove 75. For this purpose, the locking stirrup 77 can also be pre-stressed using a spring. After pressing the folding button 81, the handle 11 can be folded against the wall of the body.

fryer 1.

Claims (14)

  1. Fryer comprising a heated tank receiving a frying bath and arranged in a fryer body, a cover, and a basket assembly having a support piece which is removably fixed, in operation, in the edge area of the body. fryer, on which a handle is mounted movable in rotation for the displacement of a basket and on which the basket is mounted movable in translation vertically between a low frying position in which the basket is in the frying bath and a position drip tray in which the basket is located above the frying bath, the handle acting on the basket via a transmission system, characterized in that the transmission system is arranged outside the tank (3) and has a flexible connecting element (19) which can be moved in translation by rotation of the handle (11) and to which the basket (17) is attached.   2. Fryer according to claim 1, characterized in that the transmission system is arranged in the handle (11).   3. Fryer according to claim 2, characterized in that the connecting element (19) is connected to a slide (33) which is guided in the handle (11) so as to be immobilized in rotation and to be movable in translation rectilinear in this handle, and that the handle has at least one helical guide slide (55, 57) which, when the handle rotates, displaces the slide   (33) in translation inside the handle.   4. Fryer according to claim 3, characterized in that the handle (11) has an actuating tube (51, 53) rotatable, the guide slide (55, 57) being formed on the wall of this tube.   5. Fryer according to any one of the claims   previous, characterized in that the handle (11) has a guide tube (29) fixed without possibility of rotation on the support piece (7) and having rectilinear guide slots (31) in which is guided a   pin (35) connected to the connecting element (19).   6. Fryer according to claim 5, characterized in that at least one end portion of the guide slot (31) serves as a stop to define an extreme position of the basket (17).   7. Fryer according to claims 4 and 5, characterized   by the fact that the actuating tube (51, 53) has in its wall a helical guide groove (55, 57)   in which the pin (35) is guided.   8. Fryer according to any one of claims   previous, characterized in that when the support piece (7) is held in the region of the edge of the fryer body (1), the handle (11) is foldable against the wall of the fryer body (1).   9. Fryer according to claim 8, characterized in that an unlocking handle (81) makes it possible to actuate a latch (77) for the folding of the handle (11) and that the unlocking handle (81) is mounted in the wall of the fryer body (1) or in the room support (7).   10. Fryer according to any one of claims   , characterized in that the support part (7) has a first detection device (23) which detects whether the support part (7) is detached from the region of the edge of the fryer body (1) and which then activates a safety of folding down (23) of the support part for   prevent the handle (11) from folding down.   11. Fryer according to any one of the claims   Preceding, characterized in that a second detection device (23) of the fryer detects whether the support piece (7) is detached from the region of the edge of the fryer body (1) and then activates a rotation safety device   (77) to prevent rotation of the handle (11).   12. Fryer according to any one of claims   previous, characterized in that at least one latching device (67, 69, 71) is provided in the support piece (7) to define at least one preferred angular position of the handle (11) and therefore a position of the basket (17).   13. Fryer according to any one of claims   previous, characterized in that the support piece (7) is mounted outside the tank in the wall of the fryer body (1) and that in addition to the connecting element (19), only a part fixing section (13) of small section to which the guide device (15) for the basket is fixed protrudes inside the fryer through an opening formed between the upper edge section of   the tank (3) and the lower edge section of the cover.   14. Fryer according to any one of the claims   previous, characterized in that the element of   connection consists of a metal strip (19).