• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In the case of an operating storage device, in particular a drawer cabinet, which has a body or a frame for receiving at least one drawer for storing tools, measuring means, workpieces and other production means, the at least one drawer, preferably a plurality of drawers, being inserted from the body or frame - And are extendable, for this purpose each drawer is provided with a drawer pull-out device (4), the respective drawer pull-out safety device being provided on each of the two sides of the respective drawer with a guide track (18) and at least one guide element guided by the guide track (18), wherein the respective guideway (18) is arranged on the body or frame and the at least one guide element on the respective drawer, or vice versa, and is provided with a discharge device with which an electrically conductive connection between the respective drawer and If the body or frame can be produced to improve the properties of the discharge device, it is proposed that the discharge device be provided with an electrically conductive discharge roller element (20) which is not loaded with the weight of the drawer.
    公开号:CH715801A2
    申请号:CH01241/19
    申请日:2019-09-30
    公开日:2020-07-15
    发明作者:Pastrolin Andrea；Brunschwiler Joël
    申请人:Lista Ag；
    IPC主号:
    专利说明:

    The invention relates to an operating storage means, in particular a drawer cabinet, which has a body or a frame for receiving at least one drawer or a pull-out shelf for storing tools, measuring equipment, workpieces and other production means, preferably several from the body or frame Drawers or pull-out shelves are retractable and extendable, for this purpose each drawer or pull-out shelf is provided with a drawer pull-out device, the drawer pull-out protection being provided on each side of the respective drawer with a guide track and at least one guide element guided by the guide track, the guide track on the body or frame and the at least one guide element is arranged on the respective drawer, or vice versa, and is provided with a discharge device with which an electrically conductive connection between the respective drawer u nd the body or frame can be created.
    [0002] Especially in the field of industrial production, objects that have a high value and / or have a high weight often have to be temporarily stored. These can be tools, measuring devices, components and the like, the value of which can easily represent a four or even five-digit euro amount. However, there is a tendency that such items are increasingly being stolen from company storage facilities, such as storage cupboards, even from factories and workshops whose access is restricted to certain groups of people. This causes considerable financial damage to the company. For this reason alone, the housings and drawers of such operating storage means are usually formed from metallic materials, or at least largely consist of metallic materials. Metallic materials are also used because they can be used in a comparatively cost-effective way to achieve high resilience and long operating times. A disadvantage of metallic materials, especially for drawers, however, is that this involves the risk of the drawer being electrically charged. Such charging can be brought about in particular by the friction of the drawer guide means, which are usually designed as rollers and which run during the pull-out and push-in movement in a rail, which are connected to and arranged on the body or frame of the respective cabinet.
    For this reason, a solution is already provided in the prior art with which drawers can be unloaded again or equipotential bonding can take place. This previously known solution provides for a graphite roller to be provided in addition to the usually metallic rollers or plastic rollers with which the pull-out and extension movements are carried out and the drawer is also loaded. The roles are usually provided on both sides of the respective drawer in the same number. In addition, one roller of the one drawer side is provided with one of the rollers of the other drawer side as a pair of rollers, the two rollers being arranged along a common (virtual) axis. All of these roles are load-bearing roles, which transfers the weight portion of the respective drawer and its contents acting on them via a guide rail to the body of the company storage cabinet and thus removes it. In the previously known solution, the electrically conductive roller is provided instead of one of the other load-bearing rollers. This solution can be seen as a disadvantage that the graphite roller reduces the maximum load capacity of the drawer and also the durability of the pull-out.
    The invention is therefore based on the object to provide a functionality of the drawer less restrictive discharge device of the type mentioned, which nevertheless enables safe and stable equipotential bonding between the drawer or a pull-out shelf and the body or frame of a drawer cabinet or a drawer shelf .
    This object is achieved according to the invention in an operational storage means of the type mentioned by the features of claim 1. In this case, it can in particular be provided for an operational storage device of the type mentioned at the outset that the discharge device is provided with an electrically conductive discharge roller element which is not loaded with the weight of the drawer. This discharge roller element, which is advantageously load-free from the drawer weight, should preferably be in permanent, electrically conductive contact, in particular with the drawer pull-out device. Likewise, the discharge roller element should be in permanent, electrically conductive contact with the drawer. According to the invention, it is thus provided that the load of the respective drawer is carried out solely by the guide elements carrying the respective drawer on the guideway arranged laterally from the drawer. All of the load-bearing guide elements can thus be designed and optimized solely for their only task, namely the load-bearing and ensuring permanent safe storage of the drawer on the drawer pull-out device, and therefore do not necessarily have to be electrically conductive. Usually, they, at least their outer peripheral surfaces, are preferably formed from at least one material which is particularly resistant to mechanical loads and which is preferably not electrically conductive. This means that the load capacity and the durability of the drawer or drawer extension can be increased considerably. Nevertheless, with the solution according to the invention, a charge equalization between the drawer and the body or frame can be created at any time. For this purpose, according to the invention, a discharge roller element which is not loaded by the weight (of the drawer) and which is electrically conductive is provided. Likewise, any fastening and holding elements with which the discharge rolling element is fastened, held and with which its ability to rotate about its own axis of rotation is achieved should at least be electrically conductive to the extent that between the component to which the discharge rolling element is attached and the peripheral surface of the discharge rolling element, which an electrically conductive connection exists for contact of the discharge roller element with a contact surface for the discharge roller element on the drawer pull-out device. In principle, all conductive materials are conceivable for this, for example metallic materials. In particular, an electrically conductive plastic, for example a polyethylene or a polypropylene, can be provided for the discharge rolling element. POM-C ELS is a possible example of such an electrically conductive plastic.
    The discharge rolling element is either attached to the drawer or a pull-out shelf and in contact with the body or the frame for discharge, or else attached to the body or and then in contact with the drawer or a component connected to the drawer, such as, for example a contact surface of a drawer. The load-bearing guide elements can be chosen freely; in a non-exhaustive list, they can be designed, for example, as rollers, balls, slide extensions or linear guides. According to the invention, compatibility between the respective guide elements and the discharge rolling element is not necessary, i.e. - In contrast to the previously known solution from the prior art - different guide elements for load transfer can be provided with the discharge roller element in comparison to the at least one discharge roller element not only in terms of size, shape and materials. The at least one discharge rolling element can also be combined with completely different types of guide elements. The respective drawer of the operating storage means can thus be optimized in each case with regard to the unloading device and the load-bearing capacity of the drawer pull-out, without the unloading device and the means for load transfer of the weight force influencing one another or being dependent on one another, as in the prior art.
    In order to achieve a safe electrical conductive contact between the drawer and the body or frame of the operating storage means despite the lack of weight, or at least part of the weight, the drawer on the discharge roller element, a pressure means can be provided in an advantageous manner, with which the discharge rolling element is pressed with a biasing force against the body or the frame, or against an element which is electrically conductive with these components. If the discharge roller element is attached to the body or to the frame or is electrically conductively connected to it and is stationary with it, it can be provided that the discharge roller element is pressed against the respective drawer with the pressure means using a pretensioning force. In other words, the discharge roller element, which can rotate freely and passively about its own axis, is attached either to the body or to the respective drawer and should preferably be pressed by means of a pressure element against the respective of the two components mentioned, to which the discharge roller element is not attached and to which an electrically conductive contact is to be generated. It is particularly preferred here that the discharge roller element is in contact with a guide rail of the drawer pull-out device, the guide rail being able to be fastened both to the body / frame and to the respective drawer. If the guide rail is attached to the drawer, the discharge rolling element should be attached to the body and vice versa.
    With the invention, a particularly preferred embodiment is possible with which even during the execution of a relative movement of the respective drawer when it is pulled out and inserted into the body or the frame, the discharge roller has an electrically conductive contact between the drawer and the body or Frame produced, in particular produced without interruption and permanently.
    In a particularly preferred embodiment of the invention, a pressure means can be provided with which the discharge rolling element can be pressed against an element connected to the body or frame or against the body or frame itself. With such a preferred embodiment of the invention, a particularly reliable conductive contact between the drawer and the body can be made possible.
    In connection with the invention it can be advantageous that only one discharge roller is provided per drawer and each drawer is thus (only) assigned a separate discharge roller. Furthermore, it can be preferred that load-bearing guide elements are only provided in pairs in a drawer, that is to say that for each guide element on one side of the drawer there is also a corresponding guide element on the opposite side and these two pairs of guide elements are provided for interacting with different guide tracks, namely with guideways arranged on different sides of the drawer. A total of several pairs of guide elements and an additional discharge roller element can thus be provided for a drawer. If the guide elements are designed as load-bearing guide rollers, a drawer can thus preferably be provided with an odd number of rollers, namely an even number of guide rollers and only one additional discharge roller element.
    Further preferred embodiments of the invention result from the claims, the description and the drawing.
    The invention is explained in more detail with reference to preferred exemplary embodiments shown purely schematically in the figures, in which:<tb> Fig. 1 <SEP> is a partial perspective view of a drawer cabinet according to the invention;<tb> Fig. 2 <SEP> is a partial representation of a rear corner area of a drawer together with a drawer pull-out device and an unloading device according to the invention;<tb> Fig. 3 <SEP> the partial representation from FIG. 2 in an exploded representation;<tb> Fig. 4 <SEP> a partial representation according to FIG. 2 for both guide rails of a drawer;<tb> Fig. 5 <SEP> is a top view of a rear corner area of a section through the body and of a drawer which is provided with a discharge device according to the invention.
    Fig. 1 shows a drawer cabinet 1, as it is largely common in its basic structure for the storage of operating and production resources, as well as for tools in the field of production or craft. The drawer cabinet 1 has a body 2 made of metal sheets. Each of the drawers 3 is provided with drawer pull-outs 4, for example with so-called full pull-outs. By means of the drawer extensions 4 known per se, individual drawers 3 can be pulled out of the body 2 and retracted back into the body 2.
    [0014] The drawer cabinet 1 can be provided with an access authorization device and with an individual pull-out protection. With the single pull-out protection, a simultaneous pulling out of more than one drawer - and thus also a risk of tipping due to too many pulled out drawers 3 - can be prevented. The access authorization device can be used to determine, preferably changeably, which drawers 3 are released for pulling out of the body 2 and which drawers 3 are locked for pulling out. Different access authorizations can exist for different users and / or groups of users and can preferably be set to be changeable. The respective data on access authorizations are stored changeably in a control (not shown) of the drawer cabinet 1 and / or a common control of a plurality of drawer cabinets 1. Both the access authorization device and the individual pull-out protection can fall back on the same locking mechanism with which a drawer 3 and / or a group of drawers 3 of the drawer cabinet 1 can be locked against pulling out separately from other drawers 3. For this purpose, for example, a tab arranged in the area of the rear of the respective drawer can interact with a closure profile arranged in the area of the rear wall of the body (not shown in the figures), as has been offered by the applicant for a long time. A drawer 3 retracted into the body 2 engages in the locking profile and, depending on the position of the locking profile, the locking profile can positively grasp or reach behind or release it, so that the locking tab and thus the drawer belonging to the respective locking tab are locked against being pulled out. The present invention is not limited to the type of mechanical locking or release by means of a single pull-out protection described here. In principle, the invention can be used with any individual pull-out protection and any access authorization device. In addition, it is also possible to use the invention without a single pull-out safety device or without the drawers being able to be locked.
    In the embodiment, all the drawers 3 of the drawer cabinet 1 are preferably identical in terms of their basic structure. You can only differ from each other in the drawer height. Thus, only one drawer 3 is described below, but the discussion applies to each of the drawers 3. However, the invention is not limited to identical drawers in a drawer cabinet. It is particularly suitable for use with differently designed drawers 3 or in combination with other storage devices, for example pull-out shelves.
    Each of the drawers 3 has an at least substantially flat, rectangular drawer bottom 7. This is encompassed and delimited on the one hand by drawer side walls 8, 9 lying opposite one another and at least substantially parallel to one another, and by drawer front wall 10 likewise aligned parallel to one another and a drawer rear wall 11. The walls 8, 9, 10, 11 of the drawers 3 can be profiled for stiffening and provided with means for arranging dividing means, not shown, of the receiving volume of the respective drawer 3.
    The drawer cabinet 1 is provided for each drawer 3 with a drawer puller 4, by means of which the respective drawer can be pulled out of the body of the drawer cabinet and inserted again. In the exemplary embodiment shown, the drawer pull-out device 4 of each drawer has an outer guide rail 14 on each of the two sides of the drawer 3, on which a guide track for rollers is formed. In the exemplary embodiment, the outer guide rails 14 are designed as approximately C-shaped metallic rails. Each of the outer guide rails 14 is fastened to the body by means of suitable fastening means, namely to the side walls 8, 9 of the body. The metallic outer 14 guide rail can have direct electrically conductive contact with the respective side wall, for example because it bears against the inside of the respective side wall 8, 9. This electrically conductive contact can alternatively or additionally take place via the fastening means, for example via metallic tabs 15 of the metallic guide rails, which are inserted into corresponding recesses in the metallic side wall 8, 9, or via likewise metallic screws, which are screwed into fastening recesses of the respective side wall .
    The designed in the embodiment as a full or telescopic pull-out drawer 4 of the respective drawer has an inner guide rail 16 for each drawer on each of its two side walls, which are mounted by means of rolling elements in an outer guide rail. The outer guide rail is fixed in place on the inside of the respective side wall 8, 9 of the body. The inner guide rail 16 can be moved longitudinally relative to the outer guide rail 14 by means of a roller bearing 17 of the telescopic extension, as a result of which the inner guide rail 16 can be pulled out of the body 2 and pushed back in relative to the outer guide rail 14. The respective inner guide rail 16 has a guide path 18 for the drawer which extends in the pull-out direction, on which the guide elements of the drawer 3 can be moved for their movement on the inner guide rail 16 to produce relative movements of the drawer and stand up for transferring the load of the drawer weight. Due to the possible relative movement of the drawer 3 with respect to the inner guide rail 16 and the relative movement of the inner guide rail 16 with respect to the outer guide rail 14, the drawer can be fully pulled out of the body or frame. In order to achieve an electrical discharge of the drawer 3 via the body 2 or the frame, the outer guide rail 14 should be electrically conductively connected to the body. Likewise, the inner guide rail 16 should be electrically conductively connected to the outer guide rail 14, which can be achieved, for example, by electrically conductive roller bearings 17 of the telescopic extension, which electrically conductively connect the likewise electrically conductive inner and conductive outer guide rails 14, 16 to one another.
    In order to achieve the greatest possible smoothness of both a single and a telescopic pull-out, the guide elements with which the drawer 3 is arranged on the guide track 18 can preferably be made of plastic, in particular a plastic that has a particularly high fatigue strength even with high loads and is usually not electrically conductive. In order to enable a continuous discharge possibility or a continuous equipotential bonding of the drawer 3, a discharge device is provided in the drawer cabinet shown, which has a discharge roller element attached to the drawer 3. The discharge roller element is designed as a passively freely rotatable discharge roller 20 with a cylindrical peripheral surface 21. The discharge roller 20 should consist of a conductive plastic or plastic compound, or at least have one, so that the storage of the discharge roller 20 with the peripheral surface 21 of the discharge roller is connected to one another in an electrically conductive manner. Such a plastic can be, for example, a polyethylene or a polypropylene.
    The cylindrical peripheral surface 21 of the discharge roller 20 is arranged on a contact surface 22 of the outer guide rail 14. In the exemplary embodiment, the contact surface 22 is an outer surface of the upper leg 14a of the outer guide rail 14. An axis of rotation of the discharge roller 20 is aligned parallel to the flat contact surface 22, as a result of which there is line contact between the discharge roller 20 and the contact surface 22.
    The discharge roller 20 is attached to the drawer 3 by means of an electrically conductive (metallic) pressure element, which can also be referred to as a biasing element. In the preferred exemplary embodiment, the pressure element is designed as a spring plate 25 which has a plurality of approximately U-shaped bends / folds, the resulting two U-shapes 26, 27 being opposed and open on opposite sides. In the exemplary embodiment, the bends / bends are each designed as 90 ° bends / bends. A base leg 26a of the lower U-shape 26 is significantly longer than a base leg 27a of the upper U-shape. One leg 26b of the bend / fold is part of both U-shapes. A lower leg 26c of the U-shape 26 is used to fasten the spring plate 25 to a tab 28 of the drawer, at the rear end thereof. The tab 28 is located on the outside of the drawer 3 approximately in the corner area where the rear wall 11, a side wall 8, 9 and the base plate 7 meet. The lower leg 26c of the spring plate 25 can be fastened to the tab 28 with suitable fastening means, for example with two rivets 31. The discharge roller 20 is inserted into the upper U-shape 27, the axis of the discharge roller 20 being inserted in two opposite recesses in the upper U-shape 27.
    The discharge roller 20 is preferably against the contact surface 22 with a biasing force. To achieve the pretensioning force, the distance between the fastening points of the spring plate and the contact surface and the radius of the discharge roller are matched to one another in the exemplary embodiment in such a way that the distance between the fastening points of the rivets 31 and the contact surface 22 is smaller than the diameter of the discharge roller 20 with a deflection of the lower base leg 26a - in relation to its unloaded state - and thus also the upper U-shape, against the contact surface 22. The deflection of the base leg 26a generates an elastic restoring force in the spring plate, which serves as a pretensioning force of the discharge roller 20 with which the discharge roller 20 is pressed against the contact surface 22 of the outer guide rail and thus ensures reliable contact between the discharge roller 20 and the contact surface 22. In other embodiments of the invention, instead of a spring plate 25, any other conceivable element can also be provided, by means of which the discharge roller 20 can be pressed against the contact surface 22 in order to produce reliable permanent contact between the discharge roller 20 and the contact surface 22.
    The electrical discharge of the respective drawer 3 or a potential equalization between the drawer 3 and the body 2 thus takes place in the embodiment shown here only by way of example for the invention, from the drawer via the tab 28 of the drawer, the spring plate 25 of the axis of the Discharge roller 20, the peripheral surface of the discharge roller 20, the (outer) guide rail 14 of the drawer and then the body 2 of the drawer cabinet instead. The equipotential bonding can take place both when the drawer is pushed in and when it is pulled out and in any intermediate position of the drawer, even when the drawer is being pulled out or pushed in.
    Reference list
    1 drawer cabinet 2 body 3 drawer 4 drawer puller 7 drawer bottom 8 drawer side wall 9 drawer side wall 10 drawer front wall 11 drawer rear wall 14 outer guide rail 14a upper leg 15 tab 16 inner guide rail 17 roller bearing 18 guide track 20 discharge roller 21 cylindrical peripheral surface 22 contact surface 25 spring plate 26 U-shape 26 Base leg 26b Leg 26c lower leg 27 U-shape 27a base leg 28 tab 31 rivet
    权利要求:
    Claims (10)
    [1]
    1. operating storage means, in particular a drawer cabinet (1), which has a body (2) or a frame for receiving at least one drawer (3) for storing tools, measuring means, workpieces and other production means, with the body (2) or frame which at least one drawer, preferably several drawers (3), can be pulled in and pulled out,For this purpose, each drawer is provided with a drawer pull-out device, the respective drawer pull-out protection being provided on each of the two sides of the respective drawer with a guide track and at least one guide element guided by the guide track, the respective guide track on the body or frame and the at least one guide element on the respective drawer, or vice versa, are arranged, as wellis provided with a discharge device with which an electrically conductive connection between the respective drawer and the body or frame can be produced for the electrical discharge of the drawer,characterized in thatthe discharge device is provided with an electrically conductive discharge roller element that is not loaded with the weight of the drawer.
    [2]
    2. Operating storage means according to claim 1, characterized in that a load transfer of the drawer takes place exclusively via guide rollers guided by the respective guideway and the discharge rolling element is free of drawer loading due to an insertion or extraction movement of the drawer and due to contact with the body or frame, in particular with the guideway , starts rotating.
    [3]
    3. Operating storage means according to one of the preceding claims, characterized in that in particular also during the execution of a relative movement of the respective drawer when it is pulled out and inserted into the body or the frame, the discharge roller has an electrically conductive contact between the drawer and the body or frame generated.
    [4]
    4. Operating storage means according to claim 1, characterized by a pressure means with which the discharge rolling element can be pressed against an element connected to the body or frame or against the body or frame itself.
    [5]
    5. Operating bearing means according to one of the preceding claims, characterized by a biasing element with which the discharge rolling element can be pressed against a body or frame connecting element or against the body or frame itself under a bias.
    [6]
    6. Operating storage means according to claim 5, characterized in that the biasing element has a spring element.
    [7]
    7. Operating storage means according to at least one of the preceding claims, characterized in that the discharge rolling element is electrically conductive and in particular has a conductive plastic.
    [8]
    8. Operating storage means according to at least one of the preceding claims, characterized in that the guide elements are arranged on a flat guide track of the drawer pull-out device and the discharge rolling element on a flat contact surface, both the guide track and the contact surface extend in the direction of a pull-out direction of the drawer, the guide track and the contact surface is at least substantially perpendicular to one another.
    [9]
    9. Operating storage means according to at least one of the preceding claims, characterized in that the at least one drawer is provided on two of its opposite sides with the same number of guide elements of the drawer extension device and additionally has the discharge roller element.
    [10]
    10. Operating storage means according to at least one of the preceding claims, characterized in that the at least one drawer is provided with an odd number of rollers, namely an even number of guide rollers and an unloading roller.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3632264A1|2020-04-08|
    WO2020069768A1|2020-04-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH0195478A|1987-10-06|1989-04-13|Inaba Seisakusho:Kk|Static electricity processing device for sliding body|
    DE202005008286U1|2005-05-27|2006-10-05|Paul Hettich Gmbh & Co. Kg|drawer|
    DE202011005006U1|2011-04-07|2014-05-23|Grass Gmbh|Power supply device and furniture with power supply device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH11952018|2018-10-01|
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