• 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:
    The invention relates to a hollow wall box (1) for technical building installations, in particular electrical / electronic installation devices having a can body (2) formed by a bottom (4), a peripheral wall (3) and a mounting opening (5) opposite the bottom (4) ) made of plastic with a radially outwardly projecting support flange 8 and means for securing the hollow wall box (1, 1.1-1.5) in a can hole (25). The can body (2) carries on its outer lateral surface adjacent to the support flange (8) on its side facing the bottom (4) a circumferential annular body (15) of a relative to the plastic material of the can body (2) softer elastomeric plastic material whose enveloping cylindrical Jacket surface has a larger diameter than the adjacent lateral surface of the can body (2).
    公开号:AT520425A4
    申请号:T50070/2018
    申请日:2018-01-26
    公开日:2019-03-15
    发明作者:
    申请人:Obo Bettermann Hungary Kft；
    IPC主号:
    专利说明:

    As a hollow wall box running installation box
    The invention relates to a hollow wall box for building services installations, in particular electrical / electronic installation equipment with a formed by a bottom, a circumferential wall and a bottom mounting hole assembly made of plastic with a radially outwardly projecting support flange and means for securing the cavity wall box in a can hole.
    Cavity wall boxes of the type in question are installation boxes, which are used for electrical applications in the installation of electrical and / or electronic devices in buildings. Such hollow wall boxes have a can body, which is formed by a bottom, a circumferential wall and a bottom opposite mounting hole. The can body itself serves to accommodate electrical / electronic installation devices, such as sockets, equipment carrier and the like. To the can body at its the mounting opening bordering wall portion in the radial direction outwardly projecting support flange is formed. This serves to limit the depth of insertion of the cavity wall box, when it is inserted into a mounted in a building wall can hole. The hollow wall box further has fastening means for securing this in such a can hole. The fastening means may be, for example, can be issued in the radial direction of clamping body, each of which sits on the threaded shaft of a screw. The set screw is guided in an integrated into the can body, enclosed by a screw channel jacket screw channel. For inserting the hollow wall box into a can hole, each clamping body is in a introduced into the outer wall of the can body sprag receiving. If the hollow wall box with its can body inserted into a can hole, the clamping body are swung to engage behind the can wall enclosing wall portions. By tightening the screws, the hollow wall box is clamped to this wall section, which is then located between the support flange and the swung-out clamping bodies.
    In addition to a recording of electrical and / or electronic installation devices such Holwanddosen should meet other requirements. By installing such a Holwanddose should, if possible, the sound insulation of the drywall only be influenced as little as possible. This is especially true in applications when cavity wall boxes from opposite sides of the wall are installed flush with each other. If such a hollow-walled box is to have sound-damping or sound-transmitting properties, these can, as known from DE 20 2009 014 372 U1, have a certain thickness of elastomeric casing covering the interior or located on the outside of the can body. In another embodiment, it is provided that the bottom of the hollow wall box is coated with a flexible material, wherein the outwardly facing surface of this coating carries projecting knob-like projections. Such an installation box is known from DE 20 2017 101 772 U1. From this document, a further embodiment for sound attenuation has become known, in which the peripheral wall parallel to the central longitudinal axis of the can body over a part of its length extending strips of a flexible material, wherein the strips protrude beyond the outer circumferential surface of the wall of the can body. By this measure, a sound decoupling between the made of hard plastic can body and the can hole providing wall is brought about. Furthermore, it is desired that such cavity wall boxes, when used in a drywall, also not adversely affect the windproofness provided by the wall. Occasionally, in such a hollow wall box also required that in the case of a fire smoke-tightness is given to prevent that emerges on the hollow wall socket smoke in the drywall and possibly from other wall openings again. Such hollow wall boxes have, if designed for this purpose, via inserts or approaches of intumescent material, so that, depending on the application of heat development, this foams outside or inside the can body. Thus, in the prior art, differently designed hollow wall boxes exist for each of the stated requirements.
    Based on this discussed prior art, the invention is therefore based on the object to propose a cavity wall box for installation in particular electrical / electronic installation devices, which, without having to take additional measures, can meet several of the aforementioned requirement profiles.
    This object is achieved according to the invention by an aforementioned, generic hollow wall box in which the can body carries on its outer surface adjacent to the support flange on its side facing the ground a rotating ring body of a plastic material of the can body softer elastomeric plastic material whose enveloping cylindrical Jacket surface has a larger diameter than the adjacent lateral surface of the can body.
    In this hollow wall box of the can body carries adjacent to its support flange on its side facing the ground at least one rotating annular body. This is in contrast to the material of the can body made of an elastomeric plastic. This ring body is from the cylindrical surface of the can body. Due to its adjacent arrangement next to the support flange on its side facing the bottom of the can body side of the ring body, when inserted into a can hole, abuts against the borehole wall of the can hole. Since the ring body is made of an elastomeric plastic, in this way an effective sound insulation between the can body and the can hole providing wall is made. The circumferential design of the annular body, which may also be provided from a plurality of individual segments, ensures that the sound or vibration decoupling between the can body and the wall is actually given, therefore, the can body rests at any point on the borehole wall of the can hole.
    Such a plastic body may be a seated in a circumferential groove of the can body O-ring. In another embodiment, it is provided that the cavity wall box is a multi-component injection molded part and the can body with its support flange of a harder plastic component and the ring body are formed of a softer plastic component. In such an embodiment, the annular body can sit on the outer circumferential surface of the circumferential wall of the can body. It is also possible to arrange the ring body in an introduced into the lateral surface of the can body groove, wherein the annular body protrudes in the radial direction of the groove. The ring body is designed in a preferred embodiment of such a design of the cavity wall box in the manner of a circulating belt with a typically rectangular cross-sectional geometry. In such an embodiment, structures, such as circumferential or transversely to the direction of rotation ribs, knobs o-the other circumferential structures, quite possibly even names can be formed on the outer surface of the annular body.
    As a rule, you will run around the ring body and thus not interrupted.
    Due to the annular body, which rests after insertion of the hollow wall box to the borehole wall of the can hole, not only a sound decoupling and thus an effective soundproofing is provided, but by this measure is at the same time a windproofness between the interior of the cavity wall and the room in whose wall the Cavity wall socket is used provided. Also, this ring body is a smoke barrier, since the windproofness prevented at the same time prevents or at least impedes the entry or exiting of smoke. The arranged adjacent to the support flange circumferential annular body provides during assembly of the cavity wall box in the can hole for a secure, tight fit, which facilitates the process of bracing the cavity wall box at the can wall having the hole.
    In a further development, it is provided that the ring body extends up to the support flange and covers its surface facing the bottom of the can body. Then the soft plastic component is also integrated into the tension of the cavity wall box on the wall, which not only a sound decoupling, but also the wind and smoke tightness can be improved.
    In a hollow-wall box designed as a multicomponent injection-molded part, in which the at least one annular body is also urge-molded in a tool, in one exemplary embodiment the sprue channels for the annular body are introduced into the inner wall of the can body or are located on the outside. These sprue channels extend in the axial direction of the hollow wall box and thus in the direction of their depth. The remaining on the can body sprue to form the at least one rotating annular body is then exposed to the interior of the can body. In one embodiment of the hollow wall box it is provided that the soft plastic component contains intumescent components that inflate with appropriate heat. Such particles can readily be formed into a urine with the soft plastic component. In such an embodiment, the ring body and the sprues exposed inside the can inflate, with appropriate thermal action. Due to the sprues exposed in the can interior, the interior of the can body foams, providing an internal smoke seal. By foaming of the ring body also provided by the ring body anyway sealing effect is further improved. Thus, only by using such a soft plastic component, an effective inner and outer sealing of the hollow wall box against smoke in case of fire can be provided without the need for additional or other tools for the production of hollow cavity box should be used.
    The supply of the soft plastic component in the production of the hollow wall box for the formation of at least one ring body can also be used to secure the clamping body bearing screws in their screw channels against falling out when their screw shaft does not engage in the complementary internal threaded holes of the clamping body. Such screws are guided in a screw channel as part of the can body, wherein such a screw channel is provided by a screw channel jacket. In order to provide an effective fall protection for such a screw, in such a screw channel jacket an opening to the screw channel is provided, which is filled with the soft plastic component, in such a way that the soft plastic component protrudes into the screw channel or crosses the screw channel depending on the design. Protrudes from the opening in the screw channel an end portion of this soft plastic component into it acts as a clamping member on the shaft of the screw. Due to the soft properties of the adjusting screw can be guided past this clamping member. The clamping connection is set up so that the clamping force is sufficient so that the adjusting screw can not fall out of the screw channel by itself. When the soft plastic component traverses the screw channel, for example as part of the sprue for the manufacture of the ring body, it spans the cross-sectional area or at least part of the cross-sectional area of the screw channel. By means of the set screw, this soft plastic overvoltage can be pierced. The soft plastic parts then pushed aside as they are pushed through the screw form an effective fall protection for the set screw. The soft plastic component is supplied in such an opening of the screw channel jacket by a connection of the opening to the sprue or a runner. The sprue channels located in the can body can be integrated in the screw channel jacket. In such an embodiment, it is thus necessary in the bottom of such a sprue only an opening to the screw channel out to introduce elastomeric plastic material as Einstellschraubenherausfallschutz in the screw channel.
    A hollow wall box of the type in question regularly has cable entries in the region of the bottom, the peripheral wall and / or an inclined wall portion which represents a transition from the peripheral wall into the ground. Such cable entries may be spanned by a soft plastic component. In other embodiments, the entire bottom region of such a cavity wall box is covered with a soft plastic component. In such a hollow wall box, the sprue channels or the sprue remaining in or on the hollow wall box for forming the annular body or bodies are typically connected to the one
    Cable entry covering plastic component connected. Then all soft plastic components of such a hollow wall box can be created in a single injection molding step.
    The invention is described below with reference to the accompanying figures, in which:
    1 is a perspective view of a cavity wall box according to a first embodiment of the invention,
    2: the hollow wall box of Figure 1 in another perspective view,
    3 is a partial longitudinal section through the hollow wall box of Figure 1 in the region of a screw channel without set screw,
    4 shows the illustration of Figure 3 after insertion of a set screw,
    5 shows the partial longitudinal section of the hollow wall box of the preceding figures, shown in FIG. 4, inserted in a can hole introduced into a wall, FIG.
    6 shows a hollow wall box in a perspective view according to a further embodiment,
    7 is a hollow wall box in a perspective view according to yet another embodiment,
    8 shows a hollow wall box in a perspective view according to yet a further embodiment,
    9: a hollow wall box in a perspective view according to yet another embodiment and
    Fig. 10: a partial longitudinal section corresponding to that of Figure 3 through a further hollow wall box.
    A hollow wall box 1 for receiving electrical / electronic installation devices, such as a socket, a device carrier or the like comprises a can body 2. In the illustrated embodiment, the can body 2 by a peripheral wall 3 and a bottom 4 is formed. The bottom 4 is opposite a mounting hole 5, through which the desired installation can be introduced into the cavity wall box 1. The mounting opening 5 can be closed by a cover, not shown in the figures. To fasten such a cover, two screws 6, 6.1 are used, each of which meshes with its internal thread a complementary internal thread in a screw channel, which is enclosed by a respective screw channel jacket 7, 7.1. Instead of a cover can be attached to the cavity wall box 1 and another component or device. To the can body 2, the mounting opening 5 enclosing, in the radial direction outwardly projecting a support flange 8 is arranged. The can body 2, as far as described above, is made of a hard plastic, typically a thermoplastic. This also represents the necessary electrical insulation between the interior of the can body 2 and its outside.
    For fixing the hollow wall box 1 in a wall component introduced canhole are provided in the illustrated embodiment two mutually the longitudinal axis with respect to diametrically opposed clamping body 9, of which due to the selected perspective in Figure 1, only a clamping body 9 can be seen. This is in the illustration of Figure 1 in its non-use position. The clamping body 9 is screwed onto the threaded shank 10 of an adjusting screw 11 and is pivoted in its non-use position shown in the figure into a clamping body receptacle 12 of the peripheral wall 3. The threaded shaft 10 is located in a screw channel 13, which is bordered by a protruding into the interior of the can body 3 screw channel jacket 14, 14.1. Such fastening means for securing a cavity wall box 1 in a can hole are known per se.
    The hollow wall box 1 shown in Figure 1 carries adjacent to its support flange 8 a arranged in the manner of a band with a rectangular cross-sectional geometry annular body 15. The annular body 15 is made of an elastomeric plastic component. With its outer cylindrical outer surface, which corresponds to the embodiment of the lateral surface of the annular body 15 shown in Figure 1, this is against the lateral surface of the peripheral wall 3 (see also Figure 3).
    The bottom 4 of the hollow wall box 1 (see Figure 2) shows several cable entries, as they are known per se. In Figure 2, some cable entries are identified by the reference numeral 16. The cable entries 16 are covered by a skin of elastomeric soft plastic. The cable entries 16 allow insertion of cables or conduits at different locations. Where a cable entry is needed, the skin formed by the soft plastic component is punctured. This then forms together with the imported cable or the imported empty pipe at the same time a seal. The hollow wall box 1 further has two diametrically opposite tube inlets 16.1, which are also closed by the soft plastic component.
    The hollow wall box 1 is manufactured as a two-component injection-molded part. In a first step, the existing hard plastic can body has been ur-shaped. In a second step, the soft plastic component has been molded onto the can body 3 in a corresponding tool. Via sprue channels, the ring body 15 is connected to the soft plastic component applied in the region of the bottom 4 as far as into the circumferential wall. This Wegsamkeit remains after cooling of the workpiece as a sprue on or in the can body 2. This is advantageous because the sprues for supplying the soft plastic component to form the ring body or after the production of the cavity wall box 1 in this respect remaining sprue can be used for other purposes , In the illustrated embodiment, two feed channels extending in the axial direction of the can body 3 are provided for the supply of the soft plastic component in the region of the annular body 15. 1, such a sprue channel can be recognized on the screw channel casing 14.1 by the soft plastic component remaining therein as the sprue 17 (see FIG. This sprue 17 continues up to the present in the bottom of the soil 4 soft plastic component, with the cable entries 16 are spanned.
    FIG. 3 shows a partial longitudinal section through the screw channel jacket 14 enclosing the screw channel 13 with the sprue 17.1 facing the interior of the can body. This sectional view can also be seen that for holding the screw 11, a bottom 18 is provided with a screw passage 19. In the illustrated embodiment, the sprues 17, 17.1 extend in each case in one of the longitudinal extent of the respective screw channel jacket 14, 14.1 following groove. In the screw channel 14, an opening 20 is introduced adjacent to the bottom 19 to bring the soft plastic component from the inside of the can body on its outside, there to form the ring body 15. In Figure 3, the board of the annular body 15 relative to the outer side 21 of the peripheral wall 3 can be clearly seen. Due to the curvature of the hollow wall box 1 in the circumferential direction and the cutting plane in the screw channel 13, a step between the cutting plane and the distance of the screw channel 13 shown at a distance in the view is apparently to be assumed. This is not the case. The can body 2 extends at this point in a curvature, as is clearly visible from Figures 1 and 2.
    The sprue 17.1 engages through the opening 20 introduced into the screw channel jacket 14 and spans the screw passage 19 with a skin 22. This is continued in the radial direction outwards into the annular body 15. The skin 22 serves as fall protection for a screw inserted through the screw passage 19, the adjusting screw 11, as shown in FIG. With the screw foot, the skin 22 is pierced. The broken edge regions 23 conform to the threaded shaft 10 due to their elastomeric properties. Therefore, the screw 11 is secured with its screw shaft 10 against falling out, so that an assembly of the clamping body 9 is facilitated on this.
    In an embodiment, not shown in the figures, the annular body 15 is in a the ground 4 facing surface 24 of the support flange 8 covering ring body away.
    FIG. 5 shows the hollow wall box 1, inserted into a can hole 25, which is inserted into a wall component 26 of a hollow wall which is otherwise not shown in any more detail. The support flange 8 rests with its surface 24 on the outside of the wall 26. The clamp body 9 are swung out and engage behind the wall 26 (not shown). By tightening the screw 11, the cavity wall box 1 is clamped to the wall element 26. The diameter of the can hole 25 and the outer diameter of the hollow wall box 1 with its annular body 15 are matched. In the illustrated embodiment, the diameter of the ring body 15 is a few tenths of a millimeter larger than the inner diameter of the can hole 25 is exploited during assembly, the resilient material property of the ring body 15 as well as for demoulding reasons by a few degrees to the bottom 4 inclined towards wall 3. This facilitates insertion. The hollow wall box is held in the can hole 25 due to the above-described circumstances with a slight interference fit in the radial direction. This not only a sound decoupling the wall, but also a circumferential windproofness is given.
    In the illustrated embodiment, the soft plastic component also contains intumescent components that inflate with appropriate heat development. For this reason, the sprues 17, 17.1 are exposed to the interior of the can body. With appropriate heat these assets are able to foam the interior of the can body 2 of the cavity wall box 1. In such a case, the annular body 15 inflates and leads in addition to the Innenrauchabdichtung by the foaming of the sprues 17, 17.1 to an effective outer seal. Since these components are also in the region of the cable entries 16, there is also a foaming at this point, so effectively a smoke barrier is provided by the hollow wall box 1.
    The above-described features of the hollow wall box 1 with respect to the conception and design of the soft plastic component can also be the subject of a cavity wall box independently.
    Figures 6 to 9 show further embodiments of hollow wall boxes, which differ solely by design of their respective ring body. Thus, the above statements apply to the hollow wall box 1 equally for the hollow wall boxes of Figures 6 to 9.
    In the hollow wall box 1.1 of Figure 6 15.1 low-height ribs extending in the axial direction are formed on the outside of the annular body.
    To the annular body 15.2 of the hollow wall box 1.2 of Figure 7 circumferential ribs 28 are integrally formed on the outside of the annular body 15. In this embodiment, the ribs 28 may well be addressed as a plurality of spaced apart individual ring body of the type in question.
    In the embodiment of Figure 8, the hollow wall box 1.3 has on the outside of its annular body 15.3 molded nubs. The knobs are grouped in the longitudinal rows following rows.
    In the embodiment of Figure 9, the outside of the ring body 15.4 is characterized by two mutually displaced zigzag webs 30, 30.1.
    In the embodiments of Figures 6 to 9, the individual structures enclosing lateral surface of the respective annular body 15.1-15.4 each above the outer surface of the adjacent peripheral wall protruding, as this is described to the annular body 15 of the hollow wall box 1.
    FIG. 10 shows, in a partial longitudinal section, which in principle corresponds to that of FIGS. 3 to 5, but in a cavity wall box 1.5, which corresponds in design to those of FIGS. 1 and 2 in the region of the screw channel jacket 7. This screw channel jacket is indicated at the hollow wall box 5.1 of Figure 10 with the reference numeral 7.2. In the screw channel jacket 7.2 a screw 6 corresponding screw is not used. In this partial longitudinal section of the cavity wall box 1.5 and the tube inlet 16.2 is shown in section. In this embodiment, the soft plastic component for forming the annular body 15.5 is supplied by an extension of the screw channel jacket 7 in extension of the tube insertion 16.2 occluding soft plastic component. In this embodiment, therefore, the soft plastic component is in contrast to the embodiment of Figures 1 to 5 to the ring body 15.5 neither open on the inside nor outside open.
    The invention has been described with reference to embodiments. Without departing from the scope of the applicable claims, numerous other possibilities for a person skilled in the art to implement the invention without this having to be explained in more detail in the context of these statements.
    LIST OF REFERENCES 1.1.1-1.5 Hollow wall socket 2 can bodies 3 wall 4 base 5 mounting opening 6,6.1 screw 7, 7.1,7.2 screw channel jacket 8 supporting flange 9 clamping body 10 threaded shaft 11 adjusting screw 12 clamping body holder 13 screw channel 14, 14.1 screw channel jacket 15, 15.1-15.5 ring body 16 cable entry 16.1,16.2 Pipe infeed 17, 17.1 Sprue 18 Floor 19 Screw passage 20 Opening 21 Outside 22 Skin 23 Border area 24 Area 25 Can hole 26 Wall element 27 Rip 28 Rip 29 Pips 30,30.1 Zigzag ridges
    权利要求:
    Claims (12)
    [1]
    claims
    1. hollow wall box for building technical installations, in particular electrical / electronic installation equipment with a through a bottom (4), a circumferential wall (3) and the bottom (4) opposite mounting opening (5) formed can body (2) made of plastic with a radial Direction outwardly projecting support flange (8) and means for securing the cavity wall box (1, 1.1-1.5) in a can hole (25), characterized in that the can body (2) on its outer circumferential surface adjacent to the support flange (8) its circumferential to the bottom (4) side facing a circumferential annular body (15, 15.1-15.5) from a relative to the plastic material of the can body (2) softer elastomeric plastic material whose enveloping cylindrical surface has a larger diameter than the adjacent lateral surface of the can body (2 ).
    [2]
    2. cavity wall box according to claim 1, characterized in that the at least one annular body (15, 15.1-15.5) in a circumferential, in the wall (3) of the can body (2) inserted groove sits.
    [3]
    3. hollow wall box according to claim 1 or 2, characterized in that it is a multi-component injection molded part and the at least one annular body (15, 15.1-15.5) is formed by a soft plastic component.
    [4]
    4. hollow wall box according to claim 3, characterized in that the annular body (15, 15.1-15.5) is circumferentially not interrupted.
    [5]
    5. cavity wall box according to claim 2 or 3, characterized in that the inner wall of the can body (2) one or more, the axial extent of the cavity wall box (1) following, a runner for the production of at least one ring body (15,15.1-15.5) from the soft plastic component filling sprue (17, 17.1) carries.
    [6]
    6. hollow wall box according to claim 5, characterized in that the sprue (17, 17.1) with respect to its thickness at least partially in a in the inner wall of the can body (2) introduced groove sits.
    [7]
    7. hollow wall box according to claim 5 or 6, characterized in that on the can body (2) inside, following its longitudinal extension, a plurality of each screw channel (13) detecting screw channel shells (7, 7.1, 7.2, 14, 14.1) are integrally formed and that the in the interior of the can body (2) facing lateral surface of at least one screw channel jacket (14, 14.1) carries a sprue (17, 17.1).
    [8]
    8. hollow wall box according to one of claims 5 to 7, characterized in that the soft plastic component of the hollow wall box (1, 1.1-1.5) contains intumescent components.
    [9]
    9. hollow wall box according to one of claims 5 to 8, characterized in that it comprises one or more spanned with a soft plastic component cable entries (16) and the sprue (17, 17.1) connected to one or more such, a cable entry (16) spanning soft plastic components is.
    [10]
    10. hollow wall box according to one of claims 3 to 9, characterized in that the can body (2) inside, following its longitudinal extent, at least one innengewindelosen a screw channel enclosing screw channel casing (14, 14.1) is formed, that this at least one screw channel casing (14, 14.1) has a radial, filled with the soft plastic component opening (20) to the screw channel (13) out and that the soft plastic component for holding a in the screw channel (13) inserted screw (11) protrudes into this.
    [11]
    11. hollow wall box according to claim 10, characterized in that extending through the opening (20) extending therethrough soft plastic component as an extension of the sprue (17, 17.1) via a screw passage (19) as a skin (22).
    [12]
    12. hollow wall box according to one of claims 3 to 11, characterized in that the consisting of the soft plastic component ring body extends to the support flange and the soft plastic component covers the pointing towards the bottom of the can body Stützflanschfläche.
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    同族专利:
    公开号 | 公开日
    AT520425B8|2019-05-15|
    AT520425B1|2019-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1615851A1|1968-02-06|1970-05-21|Berker Geb|Device box for the watertight installation of device boxes|
    DE102013112305A1|2013-11-08|2015-05-13|Kaiser Gmbh & Co. Kg|Installation housing for electric lights|
    EP3159988A1|2015-10-21|2017-04-26|Legrand France|Electrical box for installation in a wall having different thicknesses|EP3826123A1|2019-11-20|2021-05-26|Kaiser GmbH & Co. KG|Installation box|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50070/2018A|AT520425B8|2018-01-26|2018-01-26|As a hollow wall box running installation box|ATA50070/2018A| AT520425B8|2018-01-26|2018-01-26|As a hollow wall box running installation box|
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