CN1216101A - Ffeezer - Google Patents

Abstract

The invention concerns a freezer (10) with a housing (11) fitted with a door (14) having a rotatably mounted handle (20) designed as a twin-armed lever, the lever having a longer arm (21) which is gripped by the hand to open the door (14) and a shorter arm (22) which presses against the housing (11) when the handle is operated. Fixed to the door is a mounting element (50) with a least one guide (51) which extends up to the side of the longer arm (21), engages in a countersupport (27) on this arm (21) and holds the door handle (20) securely about its axis of rotation over essentially the whole of its angle of rotation.

Description

freezer

The invention relates to a refrigerating device with a door installed on its heat-insulating shell. A rotatable door handle designed as a double-arm lever is arranged on the door. The door handle is used as a handle by a longer The lever arm that opens the door and a shorter lever arm that rests on the shell when the handle is operated.

For the freezer, especially for the freezer equipped with a large door opening, people are gradually disposing the door opening auxiliary device for the convenience of opening the turning surface. This auxiliary device is designed either as a mechanical device that partially removes the magnetic sealing material of the door from the edge of the housing opening used as a door armature, or as a double-armed lever with the help of its longer lever used as a handle Arm, the force used to open the door is significantly reduced due to the length of its rod. The just mentioned possibility for reducing the door opening force is disclosed by German utility model 1811327. That patent illustrates and describes a two-armed lever that is rotatably positioned on the front of an insulated door, with the longer lever arm serving as a handle, and the shorter lever arm for opening the door either acting on the The compression rod or acts on the compression plate.

The object of the present invention is, on the basis of the state of the art, to propose a fastening device for a door handle according to the preamble of claim 1, thanks to which device the door handle is fastened in a very bending-resistant manner with simple constructional means On a door body composed of a thin-walled shell and an insulating material filled therein.

According to the invention, the above-mentioned object is achieved by means of the following method, that is, a detachable fixing element is installed on the door, which has at least one guide section extending from the rotation axis towards the side of the long lever arm, and the guide section is located on the long lever arm. Corresponding guide sections on the lever arm engage and support the door handle in the direction of the axis of rotation of the door handle, at least in approximately the entire range of the angle of rotation of the door handle.

With this solution according to the invention, a fastening measure is created for the double-armed lever-shaped door handle arranged on the insulating door of the freezer, which is targeted to act on the long lever arm of the door handle as a handle. The force on the door, mainly the force applied to the fixed element when it is operated unexpectedly and against the regulations, is transmitted to the door shell in the form of surface load. In this way, point-like deformation of the door shell that is sometimes harmful to work performance at the point of force application and damage to the door caused by point-like overload are avoided, and the elimination of door shell deformation is always reliable within the entire door corner range. Furthermore, since the detachably mounted fastening element can be fastened on the loose side of the door without major installation costs, this method is also used for simple and time-saving replacement of the retaining elements of the door.

According to a preferred embodiment of the object of the invention, it is designed that the fixing element has a sickle-shaped shoulder on its guide section, which is used to prolong the guide section engaged with the corresponding guide section, and can extend into the design of the door. The receiving groove on the handle is similar to the groove, and it is rigidly engaged with it in the direction of rotation of the door handle.

By means of this measure, it is simply achieved that the actuating force acting on the long lever arm of the door handle is more advantageously transferred to the fixed element, so that the axis of rotation of the door handle is relieved to the greatest extent and thus avoids almost approaching the point The force of the shape is transferred to the door shell on the one hand through the rotating shaft, and to the door handle on the other hand.

If, according to a suitable embodiment of the subject of the present invention, on the door handle, in addition to the corresponding guide segment on its long lever arm, a corresponding guide segment is provided on its moment lever arm, it is at least on the door handle Within the range of the rotation angle of the fixed element, it is rigidly engaged with the other section guide section located on the fixed element in the direction of the rotation axis of the door handle. Then, the force introduced into the long lever arm during the door opening process will be formed particularly reliably and over a large area. It is transferred to the door handle in the form of surface load acting on the door shell and door handle.

If it is designed according to another preferred embodiment of the object of the invention that the guide section on the fixing element is designed as two sections of guide plates that are almost facing each other close to each other, then the guide section will be particularly special in terms of processing technology. Economically, it can nonetheless be manufactured with sufficient guidance accuracy.

If according to the next suitable structure of the object of the present invention, it is designed as follows, that is, the free ends of the guide plates on the fixing element deviate from each other, then a particularly large active area is realized by the guide plates for producing an effect on the door body and Surface load on door handle.

According to the invention, a further suitable configuration is designed in that the guide plates on the fastening element are produced by sinking the narrow side sections of the flat profile in steps in the same direction.

The advantage of this solution is that an inexpensive semi-finished product can be used for the fastening element, where the guide depth can be easily determined by bending. Furthermore, such a fastening element enables a particularly compact construction.

If according to the next preferred embodiment of the object of the present invention, it is designed as follows, that is, the guide section that is designed as a guide plate on the fixing element can engage with the corresponding guide section that is implemented as a groove-shaped receiving cavity on the door handle, and It forms an effective rigid connection in the direction of the axis of rotation. The guide plate on the stationary part is then placed precisely and positionally.

According to another preferred embodiment of the object of the invention, it is provided that the fastening element and the door handle are detachably fastened on the side opposite the door positioning side.

With the aid of this solution, the door handle including the fastening element can sometimes be retrofitted with reasonable installation effort by the operator of the freezer during the necessary subsequent change in door positioning. Furthermore, a door handle, which is fastened in this position on the freezer door, is particularly easy to operate for the operator.

According to another suitable embodiment of the object of the invention, it is provided that the fastening element is releasably arranged on the visible part of the side opposite the positioning side of the door and is covered by the door handle.

Such a solution is particularly advantageous due to its particularly high degree of ease of installation on the one hand and, on the other hand, to its inconspicuous and elegant integration with the door body due to the covering.

According to a preferred embodiment of the object of the invention, it is designed that the door handle has a receiving groove in which the short bow-shaped leg of a bow-shaped spring that presses the door handle into its rest position is inserted rigidly, It is covered to the greatest extent by the fastening element and is supported on the side of the fastening element facing away from the short lever arm of the door handle by means of its long bow-shaped leg on the fastening element.

According to the above configuration, the door handle automatically returns to the original position after the door opening operation is completed, so that the position of the door handle that prevents the refrigerator door from being completely closed is always reliably avoided. Furthermore, an extremely compact spring arrangement is possible by virtue of the selected point of application for the spring.

According to another preferred configuration of the object according to the invention, it is designed that the door handle includes an angular section with the pivot point of the door handle, through which the short lever arm of the door handle and its Part of a long lever arm, in this case one curved leg used to fix the door handle on the visible side, while the other leg extends essentially parallel to the front of the door and is equipped with the handle.

This solution ensures that the handle of the door handle does not protrude relative to the side of the door and the housing, otherwise the space requirement of the freezer would increase unnecessarily. Furthermore, with this solution, the gripping of the door handle does not cause difficulties due to furniture directly adjoining the freezer.

If it is designed according to another preferred embodiment of the object of the invention that the angled section has two legs of unequal length, the longer leg is designed as a receptacle that covers the fixing element and contains the corresponding guide section of the fixing element , in which the short legs extend essentially parallel to the front of the door and are equipped with a handle, then a door handle is obtained which can be mounted particularly satisfactorily on a door and which is rigid in form due to the shorter angle steel sides .

If according to the last preferred embodiment of the object of the invention it is designed that the door handle is made of plastic injection molding and reinforced with mineral material, then a door is obtained which can be produced cheaply in terms of processing technology, but has a particularly rigid shape. handle.

In the following description, the invention is explained with the aid of an exemplary embodiment which is shown in detail in the drawing. The picture shows:

Figure 1 shows a domestic refrigerator with a door handle designed as a double-arm lever positioned on its opened door, at the forefront of the perspective view,

FIG. 2 shows the door in the area of the door handle in a left side view, enlarged in part compared to FIG. 3 .

Figure 3 shows in front view the part of the door shown in Figure 2 on which the door handle is provided, in the area of the fixing element used for fixing on the door, it is represented in a partial section,

Figure 4 shows a door with a door handle on it in partial section from the top view,

Fig. 5 shows the door handle in the state of being detached from the door and the fixing elements fixed on the door handle in the form of a partial cross-section of the right view.

FIG. 1 shows a domestic refrigerator. A housing 11 designed as heat insulation has a freezer compartment 12 for accommodating stacked storage compartments 13 for frozen goods in the form of drawers, accessible through openings in the housing 11 . The entrance can be covered by a door 14 positioned on the shell 11, the door in the covered state is elastically attached to the periphery of the entrance by means of a magnetic sealing material 15, in order to open the freezer door, on its side opposite to the On the wall, a door handle 20 is rotatably arranged.

In particular, as shown in FIG. 2, the door handle 21 is designed as a double-armed lever whose lever arms 21 and 22 have different arm lengths L1 and L2 with respect to the axis of rotation formed by the swivel bearing, wherein the lever arm 22 is given a shorter The arm length L2. The door handle 20, which is designed as a double-arm lever, consists of a tubular section with an approximately oval cross-section and an angular section connected thereto, the latter being made of angle steel. The angle section contains the shorter lever arm 22 and constitutes a part of the long lever arm 21, which is extended to its arm length L1 by its tubular section for operation and reduces the opening force when opening the door 14 to that obtained by the short lever arm. 22 The ratio of the arm length to the length of the long lever arm. The angle 23 comprising the short lever arm 22 consists of unequal length legs 24 and 25 arranged substantially at right angles to each other, the short leg 24 of which is connected to the tubular section of the door handle 20 and directed towards the positioning side of the door 14, substantially parallel to the front of the door (see relevant part of Figure 4). The long leg 25 of the angle steel 23 extends parallel to the side 16 opposite the positioning side of the door 14 and has a receiving hole 26 that is implemented as a through hole, the latter facing the outside of the long leg 25 facing away from the side 16. Expand in steps (see Figures 3 and 4).

The long leg 25 of angle steel 23 especially as shown in Fig. 3 and Fig. 5, on its inboard toward side 16, has configured the guide groove that is provided with near the side of the leg 25 that is perpendicular to lever arm 21 and 22 extension, and guide groove Towards the end of the free end of the long leg 25 is provided an introduction opening, not shown, while the slot openings of the guide grooves face each other and face the receiving opening 26 . The groove width of the guide groove is limited by the side wall faces used as the corresponding guide section 27, one of which is formed by the inner side of the long leg 25 towards the side 16, and the side walls facing the side walls are respectively arranged in strip-shaped on the wall sections 28 and 29. The receiving groove 30 similar to the groove is arranged directly below the wall section 28 (see FIG. 5 ), its groove opening faces the free end of the long leg 25, and its wall surrounding the groove space is designed as a closed wall surface , the slot width towards the long leg 25 is limited here by the inner side of the long leg which serves as a guide surface. A continuous, reinforcing rib 31 extending towards the lower wall section 29 is connected to a receiving groove 30 similar to a slot, and the reinforcing rib has a vertical 32 extending parallel to the free end of the long leg 25, and the opposite segment The inclined section 33 , the wall of the rib facing the free end of the leg 25 serves as a stop surface. The reinforcing rib 31 together with the groove-like receiving groove 30 and the wall sections 28 and 29 enclose a gap 34 which is designed to be open in the direction of the free end of the leg 25 . On the free end of the leg 25, on the side of the lower leg when in the installed position, diagonally opposite to the receiving groove 30 similar to the cutout, a tight cam 35 is set, which can be formed together, for example, on the free side of the leg 25. On the end, or in this case designed as an insert, the material properties of the pressure cam are optimal with regard to wear and friction. The fitting is equipped with a fixing section 36 for its fixing purpose, which can engage in a snap-in manner into a receiving slot which is not shown in detail and is only designed to be open towards the free end of the leg 25 and faces towards the receiving slot. The insertion direction of the slot is rigidly supported. Cam part 37 is connected on the fixed section 37, and its free end has cam profile 38, and it stretches out to the opposite side of the free end of leg 25, and in this case, the height that protrudes is adjusted to the difference of magnetic sealing material 15. Fill heights to obtain a cam travel that is substantially close to the same for all fill heights.

Especially as seen in Fig. 5, above the compression cam 35, the inside of the slit 34 provides a high platform 40 of the tube base type, the high platform has a section that is inclined relative to the reinforcing rib section 33, and is open to the side wall 16. Groove 41, fixed groove is sealed by stop wall 42 toward side wall section 29 direction, and it transitions toward an end of wall section 28 in the annular arcuate zone 43 that is arranged concentrically around accommodating groove 26, and the ring width of annular arcuate zone The groove width is larger than that of the fixing groove 41 . The legs of a substantially U-shaped bow spring 44 can be inserted rigidly into the fixing groove 41 , the correctly positioned configuration of the bow spring being determined by the positioning of the end faces of the fixing legs on the positioning wall 42 . The footing that is connected on the fixed leg of U-shaped arch spring is in the fixed state of the arch spring in the annular arch region 43, by means of the gap between the walls of the annular arch region that determines the width of the base surface. On the other hand, the unsecured legs of the bow spring protrude into the gap 34 . This gap is used to receive a fastening element 50 consisting of a flat plate with an essentially rectangular front, with narrow rectangular sides of unequal length, which are sunken in steps. The step height obtained by sinking corresponds to the height of the plateau 40 , so that the fastening element 50 arranged in the gap 34 is supported on the plateau 40 with its inner side facing the plateau 40 . In addition, the trapezoidal cutting of the end face of the fixing part 50 constitutes a guide section 51 extending parallel to the plate body of the fixing part and the free ends are away from each other. The guide section 51 can guide and engage with the corresponding guide section 27, so that the door The handle 20 and the fastening part 50 are rigidly connected to each other in the direction of the axis of rotation of the door handle 20 (see also FIG. 3 ). The fixed part 50 has a different form of long rectangular side, wherein in the installed position of the fixed part 50, the long rectangular side towards the free end of the leg 25 is configured with a section of knuckle section 52 arranged in its entire height range, the knuckle section faces the side of the high platform 40 On the inside are the legs of the bow spring 44 protruding into the gap 34 as a support. The other of the two long rectangular sides of the fixing part 50 has a trapezoidal profile, and its larger step height is determined by a sickle-shaped shoulder 54, and the guide section 51 continues to extend by means of the shoulder by the length determined by its step depth , and the height of the steps is adjusted to the height of the receiving groove 30 similar to the notch, so that the shoulder 54 similar to the sickle can penetrate into the receiving groove and engage with it in the direction of the rotation axis of the door handle 20 . A locating segment 55 configured with a straight edge profile is arranged directly below the sickle-shaped shoulder 54, and another locating segment 56 with a straight edge profile is connected to the locating segment 55 towards the guide segment 51 located below. Section 56 is set back opposite positioning section 55 (see in particular FIG. 5 for this).

The fixing part 50 is provided with three vertically stacked through holes between its two guide sections 51, as shown in Fig. 3 and Fig. 5, wherein the two through holes arranged near the guide section 51 are used as fastening through-holes 57 , while the through-holes arranged in between are designed as bearing holes 58 .

A fastening screw with a countersunk head can be inserted in the fastening hole 57 and is provided with an external thread for fastening the screw shank of the fastening part 50 on the side wall 16, and in a region for stabilizing the side 16 in the region of the fastening part 50 The nut threads formed in the reinforcement part 60 are engaged with each other, and the reinforcement part is packed into the cavity of the door body as a back paving part (see Fig. 3 and Fig. 4). The bearing holes 58 arranged between the fixing holes 57 are used to rotatably support the door handle 20 on the side wall 16. At this time, a matching screw 61 is provided for the rotatable support, and its screw head is arranged in the receiving position under the installed state. The inside of the groove 26, while the middle section of its screw shaft passes through the bearing hole 58, the end section of which is configured with an external thread and the nut thread in the reinforcement part 60 interengages and interacts.

When in the mounted state on the side wall 16, the door handle 20 is carried by the fixing element 50, for this purpose the guide section 51 of the fixing element is inserted into the corresponding guide section 27 and the door handle 20 is fitted in it The screw 61 constitutes a rigid fixation in the direction of the axis of rotation. In the installed state, the door handle 20 is forcibly located in the rest position I through the positioning of the pre-tensioned bow spring 44 on the side wall 16 on the side wall 16, and the rest position I is located on the positioning block 55 by means of the reinforcing rib section 32. The positioning is determined such that in rest position I the short leg 24 of the door handle 20 is positioned parallel to the front of the door 14 . In order to open the door 14, the door handle 20 is turned around the cooperating screw 61 used as the axis of rotation, and is brought into its working position II. Positioning becomes a signal. When the door handle is released, it automatically returns to its rest position I due to the effect of the pretensioned bow spring 44 .

If it is necessary to replace the door retainer, the matching bolt 61 is removed, and the door handle 20 is pulled down in a direction parallel to the side wall 16, so that the guide section of the fixing part 50 is disengaged from the corresponding guide section 27. Immediately afterwards by removing the fixing screw 59, the fixing part is removed from the side 16 and, after the subsequent replacement of the door retainer, is installed again on the turnable side of the door 14, where in this case not only the fixing The part 50 is similar to the shoulder 54 of a sickle, and the tubular section of the door handle 50 for operation is arranged towards the direction of the installation base of the refrigerator 10 . In the case of two-person installation of the door handle 20 , the flexibility of its long lever arm 21 is significantly reduced by virtue of the rigid engagement between the sickle-shaped shoulder 54 and the slot-like receiving groove 30 .

It goes without saying that the construction of the door handle 20 and its fixation on the side 16 of the door 14 can also be used for so-called "side-by-side-combinations" (Side-by-Side-Kombination), wherein the free, rotatable door side walls face each other. , for a type of such freezer, the tubular section of one of the door handles 20 points to the installation bottom surface of the freezer, while the tubular section of the other door handle 20 points to the shell cover of the freezer.

Claims (12)

1. refrigerating plant, have one and fan the door that is positioned on its insulated shell, being provided with a position on the door can rotate, be designed to the catch of double-arm lever, catch has a segment length's, lever arm as door open knob, and one section weak point, when operating grip, be supported on the lever arm on the shell, this refrigerating plant is characterised in that, on door (14), fix a demountable retaining element (50), it has one section lead segment (51) that (21) one sides are extended from axis of rotation towards the long lever arm at least, lead segment and one section corresponding lead segment (27) engagement that is arranged on this long lever arm (21), and at least almost in the gamut of the catch anglec of rotation, on the axis of rotation direction of catch, support catch rigidly.

2. refrigerating plant as claimed in claim 1, it is characterized in that, retaining element (50) has a convex shoulder (54) that is similar to reaping hook on its lead segment (51), convex shoulder is used for prolonging the lead segment (51) engaged with corresponding lead segment (27), and can be insinuated in the holding tank that is similar to grooving (30) that is arranged on the catch (20), cooperate with holding tank rigidity on the rotating shaft direction of catch (20).

3. refrigerating plant as claimed in claim 1 or 2, it is characterized in that, the corresponding lead segment (27) on long lever arm (21) on the catch, corresponding lead segment (27) also is set on short lever arm (27), corresponding lead segment is at least in the rotational angle range of catch (20), with another section lead segment (51) the rigidity interlock on the rotating shaft direction of catch (20) on the retaining element (50).

4. as the described refrigerating plant of one of claim 1 to 3, it is characterized in that the lead segment (51) on the retaining element (50) is designed to two-section guide plate near each other, aspectant.

5. as the described refrigerating plant of one of claim 1 to 4, it is characterized in that the free end of the guide plate on the retaining element (50) is spaced-apart.

6. as the described refrigerating plant of one of claim 1 to 5, it is characterized in that, make guide plate by the narrow edge section stairstepping ground sinking of flat plate.

7. as the described refrigerating plant of one of claim 1 to 6, it is characterized in that, be designed to the lead segment (51) on the retaining element (50) of being positioned at of guide plate, can be positioned at corresponding lead segment (27) interlock on the catch (20) with the flute profile holding tank, and effectively be rigidly connected towards the axis of rotation direction with one of its formation.

8. as the described refrigerating plant of one of claim 1 to 7, it is characterized in that retaining element (50) and catch (20) are fixedly mounted on removably and are positioned on the side (16) opposite with door (14) oriented side.

9. as the described refrigerating plant of claim 1 to 8, it is characterized in that retaining element (50) is arranged on the visible part of the side (16) opposite with door (14) oriented side with removably, and covered by catch (20).

10. as the described refrigerating plant of one of claim 1 to 9, it is characterized in that, catch (20) has a holddown groove (41), one section rhaeboscelia that catch (20) is forced to the semielliptic spring (44) on its resting position I is inserted in the holddown groove rigidly, the semielliptic spring element (50) that is fixed covers to greatest extent, and is supported on retaining element on the side of catch (20) short lever arm (22) by its another section rhaeboscelia that is positioned on the retaining element (50).

11., it is characterized in that catch (20) comprises and is designed to dihedral as the described refrigerating plant of one of claim 1 to 10; One section (23) that have the catch pivot point, the short lever arm and the local long lever arm (21) thereof of Men La (20) have been constituted by it, in this case, be used for fixing catch (20) angle steel (23) leg and be in another leg on catch (20) resting position, extend in the front that is arranged essentially parallel to door (11).

12. refrigerating plant as claimed in claim 11, it is characterized in that, the section (23) that is designed to dihedral has neither isometric leg, long leg wherein (25) is designed to cover retaining element (50), the holding tank (34) that has the corresponding lead segment (27) of retaining element (50), and short-leg (24) is basically parallel to the front extension of door (14) on the resting position I of catch (20), and has disposed handle.

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