Block device

Abstract

To provide a block device that realizes the advantage of pre-assembling and reliably finally arranging functional elements such as a vibration damper and / or a separation device in a designated installation space, preferably in an automobile.SOLUTION: A block device comprises a predetermined free space for a functional element, and is provided with a blocking extension part. The expansion part extends perpendicular to a cylindrical axis of the functional element, is composed of at least one, preferably two, holding parts extending along the cylindrical axis, and is provided with at least one material accumulation for fixing the functional element in a specified installation space provided in an automobile, where the fixing is, for example, clamping, and either a press-fit connection or a fitting connection may also be considered.SELECTED DRAWING: Figure 1a

Description

[Technical Field]

[0001] The invention relates to a blocking device for functional elements, in particular damping and / or decoupling devices, used in particular in motor vehicles, which provides free space for the functional elements and / or damping or decoupling devices. [Background technology]

[0002] In the prior art, functional elements and / or damping or isolating devices are used in motor vehicles, for example, to prevent vibrations from spreading within the vehicle, and functional elements are used between the vehicle body and vibrating engine parts or other parts in the vehicle that are prone to vibrations, and / or in connection with other areas within the vehicle.

[0003] For example, WO 2020 / 001872 (Patent Document 1) discloses a vibration damping mechanism in which, for example, an engine and / or a compressor are held within a linkage mechanism. The engine and / or compressor naturally generate vibrations during operation, which can be particularly disturbing for vehicle occupants. For this reason, the joint structure within the mechanism is provided with elastic elements, which are connected to the vehicle body via elastomers. The elastomers isolate the vehicle body from the compressor as much as possible, thus damping the vibrations emanating from the engine and / or compressor. The damping and / or isolating device proposed in Patent Document 1 consists of various components that must be joined and assembled within appropriate openings in the vibration damping mechanism. Both the pre-assembly and the final assembly are relatively complex and, accordingly, costly. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2020 / 001872 Summary of the Invention [Problem to be solved by the invention]

[0005] The object of the present invention is to provide a blocking device which offers the advantage of pre-assembling and ensuring the final placement of functional elements such as vibration damping and / or isolation devices in a designated installation space, preferably in a motor vehicle. [Means for solving the problem]

[0006] According to the invention, a blocking device for a functional element, in particular a damping device and / or a separating device, is proposed, which device has a predetermined free space for the functional element and is provided with a blocking extension, which extends perpendicular to the cylindrical axis of the functional element and consists of at least one, preferably two, holding parts extending along the cylindrical axis, and is provided with at least one material accumulation for fixing the functional element in a specified installation space provided in the motor vehicle, the fixing being, for example, by clamping, but both a press-fit connection and a mating connection can also be considered.

[0007] The retaining portions are advantageously struts (elongated members) arranged in the axial direction of the block device.

[0008] The mass of material can be made from a polymeric material with a good coefficient of friction and permanent elastic properties, such as rubber, and can in particular be injection molded.

[0009] The blocking extension extending perpendicular to the cylinder axis is advantageously provided according to the installation space in the vehicle, and may be a cover or may have a star-shape, an oval shape or any other shape, provided that the area of ​​the blocking extension allows the functional element to be fixed in the predetermined installation space.

[0010] Furthermore, the blocking extension must be connected to the functional element in such a way that the free space provided for separating the functional elements before and after final assembly can be limited in a defined manner. This is achieved by the gap provided by the accumulation of material between the blocking extension and the functional element. This gap defines the maximum deflection, displacement and vibration of both the blocking device itself and the functional element in the axial direction of the blocking device, which is made possible by the present invention.

[0011] The invention can be used advantageously and cost-effectively with any rotationally symmetric functional element and its installation space.

[0012] At least one material for fixing the functional element in a corresponding installation space in the vehicle is adapted to securely fix the functional element, for example by clamping, in connection with pre-assembly and positioning in the final installation space. The material preferably acts on the functional element near the cylindrical axis in the overall arrangement for retention. The material may also latch the blocking device to the functional element. Other press-fit or mating connections may also be used.

[0013] The blocking extension is advantageously connected to the functional element at a distance, i.e., a gap, in the direction of the cylinder axis of the overall arrangement in order to limit the movement and / or vibration of the functional element, thereby preventing excessive movement of the functional element and / or the damping and / or isolating device with a permanently elastic elastomeric damping and / or isolating part and preventing the elastomeric part from being subjected to excessive loads and premature aging, thereby extending the service life of the functional element.

[0014] In a preferred embodiment of the blocking device according to the invention, two blocking extensions are provided axially opposite each other, with a material accumulation between them being provided on the inner peripheral edge of the holding part, which may be blocking extensions and / or struts (elongated members). Here, a functional element, in particular a damping device and / or a separating device, is held between the two plate-shaped and / or mushroom-shaped blocking extensions, which create a distance and / or gap between the functional element and the surfaces assigned to each of the blocking extensions on both sides. This defines the maximum deflection of the functional element. [Effects of the Invention]

[0015] The functional elements can be pre-assembled using a material accumulation on a correspondingly shaped blocking device according to the invention, so that the functional elements, in particular the damping and / or decoupling devices, can be reliably and permanently connected and / or fitted together even before final assembly. The accumulation of two materials, which causes corresponding components to bear against one another and generates a holding force, e.g. a clamping pressure, also ensures that the functional elements are reliably fixed in place throughout the service life of the overall arrangement consisting of the blocking device according to the invention and the functional elements, in particular the damping and / or decoupling devices.

[0016] Instead of using a mass of material to exert a holding force, in particular a clamping pressure, an adhesive may be used to secure the functional element in place. Other fastening methods are known to those skilled in the art, such as latch connections with corresponding shapes to the components to be connected.

[0017] The present invention will now be described in more detail with reference to preferred embodiments based on the drawings, but the same reference numerals in different drawings and embodiments indicate the same components, so there is no need to repeat the description. [Brief explanation of the drawings]

[0018] [Figure 1a] 1 is a side view perpendicular to the cylinder axis Z of one embodiment of the present invention. FIG. [Figure 1b] FIG. 1b is a plan view of FIG. [Figure 1c] FIG. 1B is a perspective view of the embodiment of FIGS. 1a and 1b. [Figure 2a] FIG. 10 is a side view of another embodiment of the present invention. [Figure 2b] This is a view of FIG. 2a rotated 90 degrees around the cylinder axis Z. [Figure 2c] FIG. 2c is a plan view of the embodiment of FIGS. 2a and 2b. [Figure 3a] 1 is a cross-sectional view showing a schematic view of a functional element and a blocking device of the present invention; [Figure 3b] 3b is a plan view of the embodiment of FIG. 3a, showing a cross section of FIG. 3a at section AA. [Figure 4] 3 shows a cross-sectional view of a blocking device and functional elements, in particular a damping device and / or a separating device, according to another embodiment of the invention. [Figure 5] FIG. 10 is a perspective plan view of a functional element and a blocking device according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] FIG. 1a is a side view of a blocking device 100 according to the present invention. The blocking device 100 has a blocking extension 10, which can be a cover and / or plate. Stabilizing struts 10a are provided to provide the cover and / or plate 10 with as little material as possible while still providing sufficient stability. Two retaining elements 12, in this case struts 12, extend from the cover and / or plate 10. As can be seen in FIG. 1b, a passage opening 16 for a connecting element (not shown), such as a retaining bolt, extends rotationally symmetrically around the cylinder axis Z. The passage opening 16 has a torsion-preventing retaining projection 14, which provides a clamping-like retaining area where a functional element 22, such as a damping device and / or a separating device 22, can be fixed in place. The accumulation 14 can be molded, e.g., injection-molded, from rubber. Various plastics can also be considered for this purpose. As shown, the passage opening 16 is not circular, but rather has a non-circular profile in this embodiment, in order to be able to receive and hold, in particular in a rotationally fixed manner, a corresponding sleeve 18 having a non-circular cross section, which may or may not comprise a structure for holding a stud bolt, for example an internal thread.

[0020] The perspective view of Figure 1c shows in particular the strut (elongated member) fixing projection 14a, which on the one hand provides a correspondingly shaped sleeve 18 (see Figures 4 and 5) and on the other hand can fix in place a functional element 22, in particular a damping device and / or a decoupling device 22. Hereinafter, instead of functional element 22, we will refer to the decoupling device, but we may also refer to the damping device.

[0021] As shown, the separation device 22 is secured to the inventive blocking device 100 by the accumulation of material from the anti-twist retaining projections 14 and / or strut (elongated member) securing projections 14a, which provide the pinch areas. Conversely, pre-assembly of the functional elements and their positional fixing after final assembly can also be simplified by using adhesive instead of pinch areas.

[0022] In the embodiment according to Figures 2a to 2c, two block extensions 10 are provided, each of which abuts against one another in the direction of the cylinder axis Z via two retaining portions and / or struts 12. The damping device 22 can be housed between the two covers 10 and can thus be held in place by a corresponding accumulation of material, e.g., clamping pressure, for pre-assembly and final fastening. The struts 12 themselves can abut adjacent to one another, but do not have to, because the upper and lower covers 10 are each held by a retaining force in a separating device 22 (not shown here) and are firmly held together by, e.g., clamping pressure, via the separating device 22 (not shown here).

[0023] As can be seen, both blocking devices 100 extend along the barrel axis Z, and the cover 10 extends in the XY plane, which directions are common to all the illustrated embodiments.

[0024] The pinching area 14, particularly the anti-twist holding projections 14 that provide the pinching effect and the strut (elongated member) fixing projections 14a are clearly shown in FIG. 2c.

[0025] 3a and 3b show the components of the blocking device 100 according to the invention, as well as the damping device 22. Gaps 20 are provided between the isolating device 22 and each cover 10 of the blocking device 100 at each end face of the isolating device 22, respectively, which define the maximum deflection of the isolating device 22 during operation and contribute to limiting the load on the isolating device 22. The damping device 22 with its elastomeric part is therefore not subjected to excessive loads and therefore premature wear can be avoided. A sleeve 18, through which a retaining bolt (not shown) can be inserted and which acoustically isolates the vibrating part of the vehicle from the rest of the vehicle, is provided in the isolating device 22 in the passage opening 16 for the connecting element.

[0026] The particular shape of the separator 22 is not critical to the present invention.

[0027] As can be seen, the sleeve 18 has a peripheral flat area 18a that corresponds to the shape of the passage opening 16. This allows the strut 12 to, on the one hand, serve as a fixed mechanical bracket for the sleeve 18, and, on the other hand, to torsionally secure the sleeve 18 against rotation in the passage opening 16. The separating device 22 is clamped against the blocking device 100 according to the invention by means of the anti-twist retaining projections 14, which may also be referred to as clamping areas 14.

[0028] The isolating device 22 is explained in more detail in FIG. 4 and can in principle be provided in any shape suitable for the vibrations to be damped and the available installation space.

[0029] The separating device 22 has an outer connector sleeve 24 and an inner connector sleeve 24a. Between these two sleeves 24, 24a is a permanently elastic elastomer section 26 that provides a damping function. In the clamping region 14 along the cylindrical axis Z, an accumulation of material in the region of the cover and / or the region of the struts 12 holds and clamps the separating device 22.

[0030] Again, the gap 20 limits the deformation of the permanently elastic elastomer portion 26 in the Z-axis direction.

[0031] 5 shows another embodiment of the invention, which should be referred to in addition to the components already described. Here, a retaining bolt (not shown) that can be inserted through the free cross-section of the passage opening 16 can hold the vibrating part to be isolated, such as a compressor or an engine, on the body of a vehicle (not shown), and an isolating device 22 absorbs vibrations, noise, etc. emitted by the held mechanical part, such as a compressor. The blocking device 100 according to the invention is again composed of two covers 10 and two respective struts 12 (not visible in the figure), which fix the isolating device both in pre-assembly and in its final position, preferably by clamping pressure.

[0032] In summary, the blocking device 100 according to the invention secures the separating device 22 in place and, in particular, limits the maximum permissible load on it. The components of the blocking device 100 according to the invention can be easily manufactured from plastic. Conventional materials such as polypropylene, polyethylene, polyamide, etc. can be used for the blocking device 100. Such plastics are durable, mechanically stable, and inexpensive to process. Of course, metal blocking devices 100 can also be manufactured from metal, at a higher cost. [Explanation of symbols]

[0033] 100 Block Device 10 Blocking extension, cover, plate 10a Stable Structure 12 Retaining portion, strut (elongated member) 14 Anti-twist retaining protrusions, clamping area, material accumulation 14a Strut (long member) fixing protrusion, material accumulation 16 Connection member, passage opening for retaining bolt 18 sleeve 18a Flat outer area 20 Gap 22 Functional elements, isolation devices, damping devices 24 Outer connector sleeve 24a Inner Connector Sleeve 26 Permanently elastic elastomer part

Claims

1. A blocking device 100 for a functional element 22, in particular a damping device 22 and / or a decoupling device 22, comprising: a predetermined free space for the functional element 22; a blocking extension 10 extending perpendicular to the cylinder axis Z; At least one holding portion 12 extending along the cylindrical axis Z; and at least one accumulation of material 14, 14a for fixing said functional element 22. Block device 100.

2. 2. The blocking device (100) according to claim 1, wherein the blocking extensions (10) are provided in pairs opposite each other and are preferably covers.

3. 3. A blocking device (100) according to claim 1 or 2, wherein the blocking extension (10) has two of the retaining portions (12) extending along the cylindrical axis (Z) and preferably being struts.

4. A blocking device 100 according to any one of claims 1 to 3, wherein the blocking extension 10 preferably has a central passage opening 16, which has protrusions 14, 14a on its inner periphery that provide a holding area, in particular a clamping area 14, for holding the functional element 22, in particular the damping device 22 and / or the separating device 22.

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