Refrigerated furniture, especially refrigerated shelves, with height-adjustable feet
Patent Information
- Application Number
- DE502024000630
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2023-04-12
- Filing Date
- 2024-04-12
- Publication Date
- 2026-02-19
- Estimated Expiration
- 2044-04-12
AI Technical Summary
Existing refrigerated display cases face challenges with unstable positioning due to heavy rear components and difficulty in accessing height adjustment mechanisms, which can lead to tipping and obstructed operation.
A refrigerated display case with a height adjustment unit positioned forward in the depth direction, utilizing a transmission mechanism to adjust rear support feet, ensuring stability and easy accessibility by integrating the mechanism into the base assembly, allowing for secure and user-friendly setup.
The solution provides stable positioning by preventing tipping and facilitates easy height adjustment without obstruction from internal components, ensuring reliable operation and user-friendly assembly.
Description
[0001] The invention relates to a refrigerated display case, in particular a refrigerated shelf, which has an interior with a cooling chamber surrounded at the rear by a rear wall group, optionally at the top by a roof group and at the bottom by a floor group, and which is placed or can be placed on a floor at the bottom by means of a height-adjustable stand arrangement, which comprises rear stands arranged in a respective rear support position and adjustable in height by means of a height adjustment unit accessible from the interior.
[0002] A refrigerated display case, specifically a refrigerated shelf of this type, is described in WO 2019 / 048042 A1. This known refrigerated shelf has height-adjustable feet located at the rear of the underside, which are adjusted by means of a cord. The height adjustment cord is guided forward through a lower horizontal frame leg and is accessible at its front end from the top of the lower frame leg. The rear end of the cord is connected to a corresponding rear foot in such a way that pulling on the front end of the cord produces a screwing motion of the adjustable rear foot.
[0003] In a design of a refrigerated display case with height-adjustable feet shown in WO 2015 / 181126 A1, an adjustment position is not located in front of the foot position.
[0004] EP 2 098 138 A1 shows a piece of furniture (not a refrigerated cabinet) with a lifting mechanism having two swivel arms, with wheels arranged on a front and a rear end section of the swivel arms.
[0005] Another refrigerated display case in the form of a refrigerated shelf with rear-mounted feet is shown in EP 3 104 748 B1. This known refrigerated shelf has a frame with C-shaped side frames and at least one C-shaped intermediate frame spaced between them in the width direction. These intermediate frames feature lateral bottom braces or intermediate braces extending from front to back in the depth direction, lateral vertical braces or further vertical braces extending in the height direction, and lateral roof braces or further roof braces extending in the depth direction. The frame thus constructed supports a base assembly, a back panel assembly, and a roof assembly of the refrigerated shelf, which are fitted with cladding and contain associated components of the refrigeration unit to maintain the interior or cooling compartment of the refrigerated shelf at the required temperature.Advantageously, various cooling components, such as the compressor and evaporator, are arranged in the rear panel assembly for efficient, homogeneous cooling, and a mounting space and air duct for the cooling air are provided. For the construction of the rear panel assembly, vertical support struts are advantageously positioned parallel to the front, spaced between the respective base and top struts. To set up and support the refrigerated display case, a stand assembly is provided beneath the base struts, with feet positioned at the front and rear of the display case. These feet are height-adjustable via a height adjustment unit accessible from inside the display case through a corresponding opening. For easy access, the feet with the height adjustment unit are positioned in front of the rear panel assembly, or, in the illustrated refrigerated display case design, in front of the respective support strut.To counteract the risk of the refrigerated display case tipping backwards, which is particularly likely due to the considerable weight of the back panel assembly and the relatively large height compared to the depth of the display case, it is proposed to install an adjustable safety support element at the rear of the display case. This will require some adjustment during assembly and installation.
[0006] A similar refrigerated display case is shown in EP 2 887 840 B1, although no further details are given regarding the height adjustment of the stand arrangement.
[0007] Another refrigerated display case with a stand assembly located beneath a base unit or base supports and adjustment units accessible from the interior via openings is also described in EP 1 288 597 A1. In this case, the rear stands are set relatively far back in the depth direction. With such an arrangement, the operation of the associated height adjustment units can be relatively difficult to access and obstructed by components located in the base unit.
[0008] Other refrigeration equipment includes, for example, refrigerated counters and freezer chests.
[0009] The present invention is based on the objective of providing a refrigerated display case, in particular a refrigerated shelf, of the type mentioned above, which is equipped with a base arrangement that results in a secure setup with a user-friendly design.
[0010] This problem is solved in a refrigerated display case with the features of claim 1. According to the invention, an adjusting element is positioned in an actuating position in the depth direction towards the front of the refrigerated display case by an actuating distance, and the height adjustment unit has a transmission mechanism bridging the actuating distance, coupled on the one hand to the adjusting element and on the other hand to the associated base for transmitting a height adjustment actuation. The respective base is guided linearly in the height direction in a guide element that is attached to the base assembly.
[0011] By means of the height adjustment unit's actuation position, which is located forward of the front of the refrigerated display case via the transmission mechanism in the depth direction, the rear support feet can be moved into a support position at the rear of the display case, particularly under the back panel assembly, to ensure stable positioning and prevent the refrigerated display case, especially the display case, from tipping backwards. In this forward actuation position, the height adjustment unit is not obstructed from the interior, particularly from above, by cooling components or structural elements located in the back panel area and is therefore easily accessible to the operator or installer via the base assembly. The fact that each support foot is guided linearly in the vertical direction (z) within a guide element attached to or within the base assembly contributes to reliable and stable operation.
[0012] A particularly advantageous design for construction, assembly, and function consists in the refrigerated display case, especially a refrigerated shelf, having a frame with at least two lateral base supports extending in the depth direction and arranged on the outer surface of the base assembly. The rear feet are positioned at the rear end of the lateral base supports, and the associated adjustment mechanisms are integrated into or attached to the lateral base supports. The base supports provide advantageous and stable mounting options for the feet and height adjustment mechanisms.
[0013] Accordingly, a further advantageous embodiment consists in the frame having at least one additional bottom brace extending in the depth direction, spaced between the lateral bottom supports. A rear support leg is also arranged at the rear end of this additional bottom brace, and a height adjustment unit associated with this support leg is integrated into this rear support leg, with its operating position located in the depth direction x towards the front of the refrigerated display case. Using intermediate frames thus equipped with additional bottom braces, which advantageously also include further vertical braces and roof supports, several shelf modules can be arranged in a row in the width direction (i.e., in a y-direction extending to the xy-plane) and supported by easily accessible rear supports.
[0014] Accordingly, a further advantageous structure is obtained by the fact that the frame comprises rear lateral vertical struts connected to the rear end section of the lateral base struts and at least one further vertical strut connected to the rear end region of the at least one further base strut optionally present according to claim 3.
[0015] A further advantageous embodiment for the construction and function of the refrigerated display case consists in the fact that the frame, connected to the upper end section of the vertical struts and, if applicable, at least one further vertical strut with its end sections, has lateral roof struts projecting forward in the depth direction and, if applicable, at least one further roof strut projecting forward at a distance laterally between these.that between the lateral base struts and lateral roof struts, and between any at least one additional base strut and at least one additional roof strut, at least one vertical support strut is mounted extending forward in the depth direction from the respective lateral vertical strut and any additional vertical strut, and that the actuation position is located forward of the respective support strut in the depth direction towards the front, and the support position is located rearward of the respective support strut in the depth direction. The support struts provide advantageous mounting and arrangement options for the cooling components of the cooling unit and structural elements, such as wall assemblies and wall elements surrounding the interior or cold storage area, while maintaining high stability.
[0016] An advantageous design for the construction, operation, and function of the respective height adjustment unit consists in the transmission mechanism having a rocker mounted in the base assembly that can pivot around a fixed pivot point.
[0017] In a further advantageous embodiment for the construction and function, it is provided that the rocker is pivotably coupled to the adjusting part via a coupling section formed in its front section by a front pivot arm directed forwards in the depth direction from the pivot point and is coupled to the associated rear support foot via a transmission section formed in its rear section by a rear pivot arm directed backwards in the depth direction.
[0018] Further contributing to an advantageous design and function are the measures that the adjusting element, in the erected state of the refrigerated display case, is adjustable in the vertical direction, in particular linearly, by tilting the rocker up and down and fixed in a selected adjustment position, and that the associated base is brought into a desired height adjustment position in the vertical direction by means of the rocker in the opposite direction to the adjustment movement of the adjusting element, in particular linearly, and fixed against the force of gravity acting on it.
[0019] Further advantageous design features for the construction, function and operation consist in the fact that the adjusting part is designed as a screw bolt which has an external thread section and is screwed into an associated threaded element with an adapted internal thread which is fixedly arranged in the base assembly in a height-adjustable manner.
[0020] For the design and function, it is further advantageous that a threaded element is fixedly attached to the respective lateral base strut and, if applicable, to at least one further base strut. The threaded element can be formed, for example, directly in a section of the base strut in question or in an element attached to it, e.g., welded on, such as a screw nut or threaded sleeve.
[0021] A further design feature advantageous for the construction, assembly and function consists in the fact that the coupling section has a claw arrangement that at least partially overlaps a section of the screw bolt laterally, and that the screw bolt is provided with a support arrangement fixed to it, at least in the vertical direction, which supports the claw arrangement with respect to the vertical direction on its upper and lower sides, and is rotatable about its bolt axis relative to the coupling section including the claw arrangement in order to pivot the rocker by moving it up or down.
[0022] If the external thread section is designed to have a left-hand thread and the internal thread is adapted accordingly in a complementary manner, the adjustment mechanism for height adjustment will be adapted to the usual operation of height-adjustable screw feet.
[0023] The measures taken to ensure reliable and stable operation also include attaching the guide piece to the relevant floor strut or other floor struts.
[0024] For safe operation and adjustment of the feet, it is further advantageously provided that the upper end face of the respective foot is equipped with a locking element by which the respective transmission section is pivotably held on the associated foot.
[0025] An advantageous design for operation and function is also achieved by ensuring that the front swivel arm between the actuation position and the pivot point is the same length as the rear swivel arm between the pivot point and the support position.
[0026] The invention is explained in more detail below with reference to exemplary embodiments and the drawings. The drawings show: Fig. 1 A refrigerated display case in the form of a refrigerated shelf with omitted side panels and partial interior fittings, comprising a support leg arrangement including rear support legs in a perspective view; Fig. 2 Essential components of a support leg arrangement with an actuating device designed as a height adjustment unit in a rear lower lateral section of a refrigerated shelf in a side view; Fig. 3 A further view of the rear lower lateral section of the refrigerated shelf. Fig. 2 with covered parts of the height adjustment unit in perspective view, Fig. 4 the rear lower side section of the refrigerated shelf according to Fig. 3with a view showing further components of the height adjustment unit, Fig. 5 a rear lower intermediate section of a refrigerated shelf with a rear support foot of the support foot arrangement and an actuating device designed as a height adjustment unit in a side view, Fig. 6 the rear lower intermediate section of the refrigerated shelf according to Fig. 5 with partially concealed height adjustment unit in perspective view, Fig. 7 the rear lower intermediate section of the refrigerated shelf according to Fig. 6with the height adjustment unit in a perspective view, Fig. 8 a rocker-type component of the height adjustment unit coupled on one side to an adjustment element and on the other side to an associated rear support of the support assembly in a perspective view, Fig. 9 three different cross-sectional views of the height adjustment unit, namely in the area of the adjustment element, in the area of a swivel bearing and in the area of the rear support, Fig. 10 a side view, partially cut away, of the height adjustment unit when coupled to the adjustment element and the associated rear support, Fig. 11 a side view of the height adjustment unit when coupled to the adjustment element and the associated rear support with an associated component in the form of a base strut of a base assembly of the refrigerated shelf assembly in a side view, Fig.Fig. 12 a further cross-sectional view of the height adjustment unit with the adjustment part and associated rear support attached, Fig. 13 a further cross-sectional view of the height adjustment unit with the adjustment part and rear support attached, as well as a section-wise component in the form of a base strut of the base assembly of the refrigerated display case, Fig. 14 the height adjustment unit when coupled to the adjustment part and the associated rear support with further components of the rear lower area of the refrigerated display case in a side view, and Fig. 15 two enlarged detail views according to the ones in . Fig. 14 highlighted details C and D.
[0027] Fig. 1Figure 6 shows a perspective view of a refrigerated display case designed as a refrigerated display case 6. This case is an example composed of two shelf modules and features a vertical rear wall assembly 3. A base assembly 4, projecting forward in the depth direction, is attached to the lower end of the rear wall assembly 3, and a roof assembly 140, projecting forward, is attached to the upper end of the rear wall assembly 3. These elements enclose an interior space 5 containing a (not further specified) refrigerated compartment at the rear, bottom, and top. The refrigerated display case 6 has a C-shaped frame, constructed from rear, bottom, and roof frame members. This frame supports the rear wall assembly 3, base assembly 4, and roof assembly 140, each with its respective (partially shown) cladding and refrigeration unit components. The refrigerated display case 6 can be enclosed laterally (by side walls, not shown here).The refrigerated shelf 6 is supported towards the floor by a support arrangement comprising front and rear support feet 21 projecting below the base group 4.
[0028] A curtain of cooling air is guided through the base assembly 5, the rear wall assembly 3, and the roof assembly 140 via channels formed within them, in order to cool the cold storage room as efficiently and evenly as possible. For this purpose, components of the cooling system that generate and guide the cooling air (such as the compressor and evaporator) are located, particularly in the rear wall assembly, and these components contribute to a relatively high weight, especially in the rear section of the refrigerated display case. To prevent the refrigerated display case 6, which also has a relatively large vertical dimension (z) compared to its depth (x) (from front to back), from tipping backward, the support positions P of the rear feet 21 are positioned as far back as possible in the rear section of the refrigerated display case 6.To enable the simplest possible operation when adjusting the height of the rear feet, an operating position B, which is easily accessible from the interior from above, has been moved to an area in front of the rear wall group 3, which is easily accessible from the interior from above, and the height adjustment unit 2, as shown in the following. Figures (2 to 15) ) shown in more detail, provided with a transmission mechanism which in its front area in the depth direction x is coupled to an adjusting part 22 arranged at the actuation position B and in its rear area directed towards the back of the refrigerated shelf 6 to the associated rear support foot 21 in order to adjust the latter in the height direction z or vertically with respect to the refrigerated shelf 6 (in the erected state therefore essentially in the direction of gravity).
[0029] How Fig. 1As shown, the frame of the refrigerated display case 6, viewed from the side, has C-shaped side frames, each with a lateral (rear) vertical brace 11 and a lateral bottom brace 10 of the base assembly 4 attached to its lower end and pointing forward in the depth direction x, as well as a lateral roof brace 14 of the roof assembly 140 attached to the upper part of the respective vertical brace 11 and pointing forward in the depth direction x. Between the C-shaped side frames, further C-shaped frames (intermediate frames) are arranged in the width direction (y-direction), each with another rear vertical brace 11'. At the lower end of these intermediate frames, another bottom brace 10' pointing forward in the depth direction x is attached, and at the upper end of these intermediate frames, another roof brace 14' pointing forward in the depth direction x is attached.The side frames each have a vertical support strut 12 running parallel to the respective side vertical strut 11 and spaced in the depth direction x towards the front face between the side bottom strut 10 and the side roof strut 14. The intermediate frames each have at least one further support strut 12' running parallel to the respective vertical strut 11' and spaced in the depth direction x towards the front face between the further bottom strut 10' and the further roof strut 14'. The support struts 12, 12' form parts of the rear wall assembly 3 and serve to stabilize and support the rear wall assembly with the components installed therein and to support the roof assembly 140 against the bottom assembly 4. Advantageously, heat-insulating bearing blocks 13 are arranged below the support struts 12, 12' for support and insulation from the respective bottom struts 10, 10'.The actuation positions B for adjusting the rear support feet 21 are located in front of the support struts 12, 12' in the depth direction x towards the front and are thus easily accessible from the interior 5 of the refrigerated display case 6. In the illustrated embodiment, the actuation positions B are arranged in the area of the bearing blocks 13, in which through-openings 131 (see following figures) are formed, through which the respective adjusting element 22 for adjusting the height of the respective rear support foot 21 can be accessed with a tool.
[0030] Fig. 2Figure 1 shows a rear side view of a refrigerated display case with a height adjustment unit 2 integrated into the base assembly 4, with the cladding panels removed. The rear support leg 21 is supported on the floor in the rear support position P as a vertically elongated adjustment pin extending in the height direction z. At a distance D in the depth direction x towards the front of the rear support leg 21, the longitudinally extended adjustment element 22, also oriented vertically in the height direction z, is arranged with its longitudinal axis in the actuation position B and is adjustable in the height direction z.To transmit the height adjustment actuation of the adjusting part 22 to the rear support foot 21, a transmission mechanism bridging the distance D is provided, which in this case is designed as a rocker 20, which is pivotably mounted in a pivot bearing 23 in the base part, specifically in the relevant lateral base strut 10, and is coupled with its front end region to the adjusting part 22 and with its rear end region to the rear support foot 21.
[0031] The adjusting element 22 is designed as an adjusting bolt rotatable about its longitudinal axis, which has an external threaded section extending at least over an adjustment section and is screwed into an internal thread fixed in the base assembly, in this case in the relevant lateral base strut 10. In the illustrated embodiment, the internal thread is formed in a threaded element 221 fixedly attached to the lateral base strut 10, e.g., welded on. The adjusting element 22 has a projection in its upper region for a tool, for example, an Allen key, to screw it in more or less far downwards or outwards upwards for height adjustment. In the illustrated embodiment, the threaded element 221 is arranged under or in a recess of the bearing block 13 on the lateral base strut 10, e.g.,The bearing block 13 is welded in place and accessible via the through-opening 131 formed in the bearing block 13 above the tool attachment. The bearing block 13, on whose upper surface the support strut 12 is also supported, is attached to the upper surface of the lateral bottom strut 10 by means of fasteners 130, in particular by screws. It is also conceivable to form the threaded element as an internal thread in the bottom strut 10 itself or in another element of the base assembly 4.
[0032] For coupling a coupling section 201 arranged in the front area of the rocker 20 (see also Fig. 8The adjusting element 22, designed as an adjusting bolt, has a drive unit in the form of a support arrangement 220 with an upper and lower support part, between which the coupling section 201 is pivotably held when the adjusting element 22 is adjusted upwards and downwards. The lower support part supports the coupling section 201 on its underside when the adjusting element 22 is moved upwards, and the upper support part supports the coupling section 201 on its upper side when the adjusting element 22 is moved downwards, whereby the adjusting element 22, designed as an adjusting bolt, can rotate about its longitudinal axis within the coupling section 201 relative to the coupling section 201 or the rocker 20. Fig. 2As shown, the adjusting element 22 can, with its lower portion, dip through an opening provided in a lower wall of the lateral base strut 10 when moved downwards. For example, the lateral base strut 10 is designed as a U-shaped or C-shaped profile open to the outside or inside, or as a differently shaped, partially open, or alternatively as a closed hollow profile.
[0033] The rocker 20 is pivotably mounted in the base assembly, in this case the lateral base strut 10, in the pivot bearing 23, for which purpose it has a physical axis of rotation 230 (cf. Fig. 8 ) with lateral axle stubs and is rotatably mounted in associated bearing receptacles in the floor assembly 4 or the lateral floor strut 10. Alternatively, the pivot bearing 23 can also have a bearing bore through which a bearing bolt mounted in the floor assembly or floor strut 10 is guided. How Fig. 3As shown, the pivot bearing 23 is mounted on the open side of the lateral base strut 10 in a side part 100 stably attached thereto, with the rocker 20 being held pivotably. Fig. 4 The arrangement of the rocker 20 in the lateral base strut 10 can be seen in a see-through view. Furthermore, the Figs. 3 and 4 the training of the adjustment unit accordingly Fig. 2 when installed in the rear, lower side section of the refrigerated shelf 6 in perspective view.
[0034] As in Fig. 2 As further shown, the rocker arm 20 with its section directed rearward from the pivot bearing 23 in the depth direction x, the rear pivot arm, is connected in its end area to a transmission section 202 (cf. Fig. 8The rocker arm 20 is coupled to the upper part of the associated rear support leg 21 to move the leg downwards or upwards in the height direction z by pivoting the rocker arm 20 using the adjusting element 22, thus setting the desired support height. When the adjusting element 22 is raised, the rear pivot arm of the rocker arm 20 presses against the support leg 21 and moves it downwards in the height direction z, while when the adjusting element 22 is moved downwards, the support leg 21 is moved upwards in the height direction z. For this purpose, the transmission section 202 is pivotably mounted on the upper part of the support leg 21. To guide the support leg 21 stably in the height direction z, a guide piece 101 in the form of a guide sleeve is attached to the base assembly 4, in this case on the underside of the lateral base strut 10.For stable attachment of the side panel 100, it is provided in one piece with a leg directed upwards in the height direction z and is attached to the associated lateral rear vertical strut 11, as shown in the . Figs. 3 and 4 visible.
[0035] The design and installation of the height adjustment unit 2 in the lower lateral area of the refrigerated display case, as shown, offers advantages in terms of its placement and function. However, a design mounted laterally, for example inwards, to the frame of the refrigerated display case is also conceivable. In this case, the actuation position B is advantageously positioned upstream of the rear support position of the respective rear upright by a distance D in the depth direction x via a functionally identical transmission mechanism. Another integration into the base assembly 4 is also possible while maintaining the functional principle (e.g., via an arrangement with flexible or hydraulic actuation elements).
[0036] The Figs. 5, 6 and 7 show the installation of a height adjustment unit 2 according to the one in the Figs. 2, 3 and 4The assembly shown is in a different installation situation, namely in a lower rear part of an intermediate frame of the frame structure, which is arranged in the width direction y of the refrigerated display case 6 at a distance between the side frames and has a further bottom brace 10', a further rear vertical brace 11', and a further roof brace 14'. The further bottom brace 10' is here designed as a profile in the form of an upwardly open top-hat rail with a U-shaped central section in cross-section and side sections (profile legs) bent outwards at right angles at its edges (as shown in the applicant's EP 3 104 748 B1 mentioned above, see there e.g. Fig. 3The roof strut 14' is formed from a profile of corresponding cross-section, but with the open side facing downwards. Between the further bottom strut 10' and the further roof strut 14', two support struts 12', positioned in front of the further vertical strut 11', are mounted on the profile legs, the further support struts 12' being supported on the associated further bottom strut 10' via bearing blocks 13. In this installation, the adjustment unit 2 with the adjustment element 22, the rocker 20 and the associated rear support foot 21 is attached laterally to the further bottom strut 10'. The height adjustment unit with the rocker 20 is arranged under one of the two lateral profile legs of the further bottom strut 10', which are bent outwards at right angles, and is fastened by means of mounting parts, in this case a side piece 102, spaced parallel to the associated vertical U-leg.The axis of rotation 230 of the rotary bearing 23 is mounted in a bearing receptacle formed in the side piece 102 and the adjacent parallel U-leg, as shown in the lateral illustration. Fig. 5 in conjunction with the perspective representations of the Figs. 6 and 7 This reveals itself, whereby in Fig. 7 The height adjustment unit 2 is shown in a (partial) see-through view in its installed position. The adjusting element 22, arranged vertically to the side of the relevant U-shaped leg and in the form of an adjusting bolt, is also accessible via a through-opening 131 in the bearing block 13 with a tool and can be rotated via the tool projection formed on it and adjusted via the threaded connection according to the embodiment shown in the illustration. Figs. 2, 3 and 4The rocker 20 can be moved up and down to adjust the rear support leg 21, which is coupled to it, to the desired height. The operating position B is corresponding to the rear support position P. Fig. 2 The unit is offset in the depth direction x towards the front by a distance D and is thus easily accessible from the interior 5 from above. Where trim panels are present, a through-opening is also provided in them, or they can be easily removed in the area of the operating position B, as is also the case with the installation according to the Figs. 2, 3 and 4 that is the case.
[0037] The Fig. 8, 9 , 10, 11 , 12, 13 , 14 and 15 further illustrations of the height adjustment unit 2.
[0038] In Fig. 8The height adjustment unit 2 is shown in perspective, coupled to the rocker 20 with the coupling section 201 formed on its front pivot arm to the adjusting part 22 and with its transmission section 202 formed on the rear pivot arm to the associated rear support foot 21. Clearly visible is the coupling section 201, which has two claw-like lateral end sections and partially encompasses the adjusting part 22 in the form of the adjusting bolt between the lower and upper abutment parts of the abutment assembly 220. The adjusting part 22 is fastened by means of its outer threaded section in the base assembly 4, in particular the relevant base strut 10 or 10', by means of the nut formed here. B. welded, threaded element 221 is movable up and down in the height direction z and the coupling section 201 allows a pivoting of the rocker 20 at least over the height adjustment path.The rocker 20, which pivots in the xz plane, is not displaceable in the depth direction x of the refrigerated cabinet or refrigerated shelf 6 when installed, and the coupling section 201 is securely held on the adjusting element 22, the design of which allows for easy assembly on the adjusting element 22. This is also evident from the... Fig. 9The left side shows a cross-section of the height adjustment unit 2 in the area of the adjustment element 22, and the tool attachment or actuation element 222 is also visible. The lateral parts of the coupling section 201 between the abutment parts of the abutment assembly 220, as well as parts of the base strut and lateral reinforcing plates for the rotary bearing 23, are also visible. The middle illustration shows a section of the height adjustment unit 2 as installed in a lateral base strut 10 in the area of the rotary bearing 23. The right illustration shows a cross-section of the height adjustment unit 2 in the area of the respective rear support foot 21 with the sleeve-shaped guide piece 101 and also parts of the lateral base strut 10 as well as reinforcing lateral mounting parts. A parallel to the axis of rotation 230, i.e.,in the lateral direction y, a locking element 203 is inserted, which is attached to a U-shaped locking element 212 in cross-section on the upper side of the base 21 or the shaft 210 thereof (cf. . Fig. 10 ) is held in its position stabilized upwards, downwards, and backwards. This secures the base 21, preventing it from falling out of the guide, particularly during transport or when the refrigerated unit is lifted during installation. This ensures a secure, positionally accurate connection between the transmission section 202 of the rocker 20 and the rear base 21 during height adjustment. The shaft 210 on the underside of the base 21 is provided with a bottom-facing end piece 211.
[0039] The rocker 20, for example, is designed as a die-cast part and can be composed of two parts molded separately in vertical longitudinal section, which also offers manufacturing and / or assembly advantages during installation. Viewed from the pivot bearing or axis of rotation 230, the rocker tapers towards the front and rear pivot arms, thus ensuring good utilization of the clearance for pivoting movement while maintaining high stability of the rocker 20, for example, when installed in the base struts 10, 10'.
[0040] Fig. 10 shows a longitudinal section of the height adjustment unit 2 in the area of the adjustment part 22 and the associated base 21, showing one longitudinal half of the rocker 20. Fig. 11 shows a rocker 20 built into a base strut 10 as shown in the illustration. Fig. 10 .
[0041] Fig. 12 shows another longitudinal section of the height adjustment unit 2, where the rocker 2 is also shown in a longitudinal section, while Fig. 13the height adjustment unit 2 as shown in the illustration Fig. 12 when installed in a floor strut 10 shows.
[0042] Fig. 14 Figure 1 shows a further representation of the height adjustment unit 2 in longitudinal section when installed in a base strut 10 in the area of the rear section thereof with an upwardly directed leg of the side part 100, as well as a detail D around the adjustment part 22 and a detail C in the area of the rear adjustment foot 21. These details are shown in Figure 2. Fig. 15 A more detailed explanation.
[0043] An advantageous design of the height adjustment unit 2 consists in the fact that the adjustment part 22 or the adjustment bolt is provided with a left-hand thread and the threaded element 221 with an internal thread adapted to it, whereby the height adjustment can be carried out in the usual direction as with direct adjustment of the base.
[0044] The length of the rear and front pivot arms of the rocker 20 can be the same, so that the adjustment travel of the adjusting element 22 corresponds to the adjustment travel of the base 21. It is also conceivable that the rear and front pivot arms can be of different lengths, thereby achieving a corresponding transmission ratio. The length of the rocker 20 in the depth direction x can be adjusted according to the distance to be bridged between the actuation position B and the rear support position P and is, for example, between 8 cm and 30 cm, preferably between 10 cm and 20 cm.
Claims
1. A refrigerated cabinet, in particular refrigerated shelf (6), which has an interior space (5) having a cooling chamber and enclosed at the back side by a back wall assembly (3), optionally at the upper side by a roof assembly (140) and at the bottom by a base assembly (4) and which is set up or can be set up on a floor using a height-adjustable pedestal arrangement, which comprises rear pedestals (21) arranged in a respective back side support position (P) and adjustable in the height direction (z) by means of a height adjustment unit (2) accessible from the interior space (5), wherein an adjustment part (22) is located upstream the rear support position (P) in an actuating position (B) in the depth direction (x) towards the front side of the refrigerated cabinet by an actuating distance (D), and the height adjustment unit (2) has a transmission mechanism that bridges the actuating distance (D) and is coupled with the adjustment part (22) on one hand, and, on the other hand, with the associated pedestal (21) for the transmission of a height adjustment actuation, characterized in that the respective pedestal (21) is guided in a linear sliding manner in the height direction (z) in a guide piece (101) which is fastened to or in the base assembly (4).
2. The refrigerated cabinet according to claim 1, characterized in that the refrigerated cabinet, in particular the refrigerated shelf (6), has a frame structure with at least two lateral base struts (10) arranged in the outer side area of the base assembly (4) and extending in the depth direction (x) and the rear pedestals (21) are arranged at the rear end area of the lateral base struts (10) and the associated adjustment units (2) are installed on or in the lateral base struts (10).
3. The refrigerated cabinet according to claim 2, characterized in that the frame structure has at least one further base strut (10') directed in the depth direction (x) at a distance between the lateral base struts (10), at the rear end area of which a rear pedestal (21) is equally arranged and in which a height adjustment unit (2) associated with this pedestal (21) is installed.
4. The refrigerated cabinet according to claim 2 or 3, characterized in that the frame structure comprises rear lateral vertical struts (11) connected to the rear end section of the lateral base struts (10) and at least one further vertical strut (11') connected to the rear end area of at least one further base strut (10') that is optionally present according to claim 3.
5. The refrigerated cabinet according to claim 4, characterized in that the frame structure has lateral roof struts connected with their end sections to the upper end section of the vertical struts (11) and any optionally present further vertical struts (11') and protruding forward in the depth direction (x), and optionally at least one further roof strut arranged at a distance laterally between them and protruding forward, between the lateral base struts (10) and lateral roof struts and the optionally present further base strut (10') and at least one further roof strut, at least one vertical support strut is attached forwardly in the depth direction (x), spaced apart from the respective lateral vertical strut (11) and at least one optionally present further vertical strut (11'), and the actuating position (B) in the depth direction (x) of the respective support strut is located upstream the front side and the support position (P) in the depth direction (x) of the respective support strut is located downstream the back side.
6. The refrigerated cabinet according to one of the preceding claims, characterized in that the transmission mechanism has a rocker (20) mounted in a swiveled manner in the base assembly (4) around a fixed pivot point (231).
7. The refrigerated cabinet according to claim 6, characterized in that the rocker (20) is coupled in a swiveled manner to the adjustment part (22) by means of a front swivel arm directed forward from the pivot point (231) in the depth direction (x) via a coupling section (201) formed in its front section, and is coupled to the associated rear pedestal (21) by means of a rear swivel arm directed rearward from the pivot point (231) in the depth direction (x) via a transmission section (202) formed in its rear section.
8. The refrigerated cabinet according to claim 7, characterized in that the adjustment part (22) can be adjusted linearly up and down in the height direction (z) when the refrigerated cabinet is in the raised position, by swiveling the rocker (20), and is fixed in a selected adjustment position, and the associated pedestal (21) is brought linearly in the height direction (z) into a desired height adjustment position using the rocker (20) in the opposite direction to the adjustment movement of the adjustment part (22) and is fixed against the force of gravity acting on it.
9. The refrigerated cabinet according to one of the preceding claims, characterized in that the adjustment part (22) is formed as a screw bolt, which has an external thread section and is screwed into an associated threaded element (221) with an adapted internal thread, which is fixedly arranged in the base assembly (4), in a height-adjustable manner.
10. The refrigerated cabinet according to claim 9, insofar as it refers back to claims 2 to 8 or 3 to 8, characterized in that a threaded element (221) is permanently attached to the respective lateral base strut (10) and optionally, to at least one further base strut (10').
11. The refrigerated cabinet according to claim 9 or 10, characterized in that the coupling section (201) has a claw arrangement that at least partially laterally overlaps a section of the screw bolt, and the screw bolt is provided with an abutment arrangement (220) fixedly arranged to it at least in the height direction (z) and supporting the claw arrangement with respect to the height direction (z) on its upper side and on its lower side, and is pivotable around its bolt axis relative to the coupling section (201), comprising the claw arrangement, in order to swivel the rocker (20).
12. The refrigerated cabinet according to one of the claims 9 to 11, characterized in that the external thread section has a left-hand thread and the internal thread is adapted to be complementary thereto.
13. The refrigerated cabinet according to one of the claims 2 to 12 or 3 to 12, characterized in that the guide piece (101) is fastened to the relevant base strut (10) or further base strut (10').
14. The refrigerated cabinet according to one of the claims 6 to 13, characterized in that the upper edge area of the respective pedestal (21) is provided with a locking member (212) by means of which the respective transmission section (202) is held on the associated pedestal (21) in a swiveled manner.
15. The refrigerated cabinet according to one of the claims 7 to 14, characterized in that the front swivel arm between the actuating position (B) and the pivot point (231) has the same length as the rear swivel arm between the pivot point (231) and the support position (P).