Tie rod equipped housing and method of manufacturing tie rod equipped housing

By relocating the annular seal to the outer section of the tie rod and optimizing the nut-bushing interaction, the tie rod-equipped housings achieve reduced length with increased bushing stroke and enhanced sealing, addressing the limitations of prior art while ensuring secure assembly and corrosion protection.

JP7825388B2Active Publication Date: 2026-03-06ROBERT BOSCH GMBH
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-07-28
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing tie rod-equipped housings have a limited stroke due to the long dimension of the nut along its central longitudinal axis, which restricts the movement of the bushing, and there is a risk of damage to the annular seal and undesired position changes or loosening during the service life of the hydraulic device.

Method used

The solution involves relocating the annular seal to the outer section of the tie rod, using a nut with a smaller central longitudinal axis and incorporating a bushing design that allows the nut to be inserted into the bushing's inner hollow space, reducing the overall length while maintaining the maximum possible stroke of the bushing, and ensuring secure assembly without damaging the seal.

Benefits of technology

This design achieves a reduced overall length with increased bushing stroke, enhances sealing reliability, prevents seal damage, and eliminates the need for costly protective coatings, ensuring secure assembly and improved corrosion protection.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a tie rod equipped housing, a hydraulic device, a manufacturing method of the tie rod equipped housing, and a surface of the hydraulic device and / or a method for assembling the tie rod equipped housing to the interior.SOLUTION: A tie rod (46) included in a housing protrudes through an interior hollow space (52) of a bush (50), and the interior hollow space of the bush (50) is configured so that the bush (50) can slide through at least one partial area (48c) of a nut (48), facing in a direction away from a housing portion (40), at the side facing the nut (48). At least the partial area (48c) of the nut (48) is configured to enter the interior hollow space of the bush (50).SELECTED DRAWING: Figure 2a
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Description

[Technical Field]

[0001] The present invention relates to a tie rod-equipped housing and to a hydraulic device, as well as to a method for manufacturing a tie rod-equipped housing and a method for assembling a tie rod-equipped housing on and / or within a hydraulic device. [Background technology]

[0002] FIG. 1 shows a schematic diagram of a conventional cover known internally to the applicant as prior art.

[0003] 1 at least partially encloses an interior volume 12 into which a tie rod 14 extends. In addition, the tie rod 14 extends from the cover 10 through an opening 16 formed in the cover 10. An inner section 14a of the tie rod 14 resides in the interior volume 12, while an outer section 14b of the tie rod 14 extends to the exterior surface of the cover 10.

[0004] The opening 16 formed in the cover 10 is fluid-tight sealed by an O-ring 18 disposed on at least the inner region 14a of the tie rod 14. The O-ring 18 is located within an inner bore of a nut 20 that is threaded onto the threads 14c of the inner region 14a of the tie rod 14. The O-ring 18 is pressed into the inner bore of the nut 20, and is compressed to form a fluid-tight seal by contact between the cover 10 and the O-ring 18, as well as between the tie rod 14 and the O-ring 18, and also by contact between the nut 20 and the O-ring 18. Furthermore, the nut 20 has a relatively long dimension along its central longitudinal axis extending through the center of its inner bore so that the region of the nut 20, indicated by arrow 22, can be compressed onto the tie rod 14. However, in the cover 10 of FIG. 1, the relatively long dimension of the nut 20 along its central longitudinal axis limits the stroke of a bushing (not shown) slidably disposed on the inner region 14a of the tie rod 14.

[0005] 1 is mounted on a flange 24 of a hydraulic system (only partially shown) so that the outer section 14b of the tie rod 14 protrudes through a hole 26 formed in the flange 24. A separate nut 28 is threaded onto the threads 14d of the outer section 14b of the tie rod 14, pressing the cover 10 against the flange 24. The separate nut 28 may also be crimped onto the tie rod 14, as shown diagrammatically by arrow 30, although the separate nut 28 has a significantly shorter dimension along its central longitudinal axis extending through the center of its inner bore than nut 20. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention provides a tie rod-equipped housing having the features of claim 1, a hydraulic device having the features of claim 8, a method for manufacturing a tie rod-equipped housing having the features of claim 10, and a method for assembling a tie rod-equipped housing on and / or inside a hydraulic device having the features of claim 11.

[0007] The present invention provides tie rod-equipped housings having a reduced overall length compared to the prior art, while maintaining the maximum possible stroke of each bushing slidably arranged on the side of the nut facing away from the housing part of each tie rod-equipped housing. Similarly, the present invention provides tie rod-equipped housings having an increased maximum possible stroke of each bushing compared to the prior art, while maintaining the overall length. Furthermore, the present invention contributes to a reliable sealing of the internal volume of each tie rod-equipped housing according to the present invention. As will be explained in more detail below, the tie rod-equipped housings according to the present invention can also be securely assembled on and / or within a hydraulic device, such that there is no / almost no need to worry about undesired position changes or loosening of the tie rod-equipped housing during the useful life of the hydraulic device.

[0008] In a preferred embodiment, the tie rod-equipped housing has an annular seal arranged on the tie rod, the opening where the outer section of the tie rod protrudes from the housing part is at least liquid-tight sealed by the annular seal, the annular seal being arranged on the outer section of the tie rod. Positioning of the annular seal of this kind not only contributes to further reducing the overall length of the respective tie rod-equipped housing while maintaining the maximum possible stroke of the slidable bushing, but also significantly reduces the risk of damage to the annular seal during the service life of the tie rod-equipped housing.

[0009] For example, the annular seal may be an annular molded seal, an O-ring, and / or an annular cured adhesive. In this manner, inexpensively manufacturable components may be utilized as the annular seal.

[0010] Preferably, a central longitudinal axis extending through the center of the nut's inner bore can be defined, and the contact surface of the nut that contacts the housing portion has a first smallest outer diameter oriented perpendicular to the central longitudinal axis of the nut's inner bore, which is larger than a second largest outer diameter oriented perpendicular to the central longitudinal axis of the nut's inner bore of a portion of the nut that can be inserted into the inner hollow space of the bushing. In this way, the contact surface provides a sufficiently wide support surface for the housing portion. In particular, the first smallest outer diameter of the contact surface of the nut oriented perpendicular to the central longitudinal axis of the tie rod can be selected relatively freely.

[0011] The nut is preferably clamped to the associated tie rod, and because the annular seal member, when positioned on the outer region of the tie rod, does not come into contact with the nut threadedly secured to the same tie rod, there is no need to worry about damaging the annular seal member when clamping the nut, even if the nut is configured to have a relatively small dimension along its central longitudinal axis extending centrally through its bore.

[0012] For example, the nut may be clamped to the associated tie rod by three radial press-fits, with two adjacent radial press-fits offset from each other by an angle of 120°, which ensures a secure retention of the nut on the associated tie rod.

[0013] In another preferred embodiment of the tie rod-equipped housing, the outer surface of the nut consists of zinc, although in the tie rod-equipped housing according to the invention, there is no conventional need to coat the nut with a relatively strong, liquid-resistant protective layer such as zinc, since an annular sealing member attached to the outer area of ​​the tie rod prevents any contact of the nut with liquids external to the housing portion.

[0014] The advantages described above are also provided in hydraulic systems having tie rod-equipped housings of this type, where the tie rods of the tie rod-equipped housings are assembled to and / or within the hydraulic system such that the outer sections of the tie rods protrude through holes in the flanges of the hydraulic system.

[0015] The hydraulic device may be, for example, a master brake cylinder, a plunger device, or a hydraulic braking system. Thus, the present invention has many applications. However, it should be noted that the examples of hydraulic devices listed herein should not be construed as exhaustive.

[0016] The advantages described above are also ensured when a corresponding method for manufacturing a tie rod-equipped housing is implemented, which can be developed in accordance with the above-described embodiments of the tie rod-equipped housing.

[0017] Furthermore, the implementation of a corresponding method for assembling a tie rod-equipped housing on and / or within the hydraulic device also provides the advantages of the hydraulic device described above, and this method can also be developed in accordance with the embodiments of the hydraulic device described above.

[0018] Other features and advantages of the present invention will now be described with reference to the drawings, which show: [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a schematic diagram showing a conventional cover. [Figure 2a] 1 is a schematic partial view showing a first embodiment of a tie rod-equipped housing. FIG. [Figure 2b] 1 is a schematic partial view showing a first embodiment of a tie rod-equipped housing. FIG. [Figure 2c] 1 is a schematic partial view showing a first embodiment of a tie rod-equipped housing. FIG. [Figure 2d] 1 is a schematic partial view showing a first embodiment of a tie rod-equipped housing. FIG. [Figure 2e] 1 is a schematic partial view showing a first embodiment of a tie rod-equipped housing. FIG. [Figure 2f] 1 is a schematic partial view showing a first embodiment of a tie rod-equipped housing. FIG. [Figure 2g] 1 is a schematic partial view showing a first embodiment of a tie rod-equipped housing. FIG. [Figure 3] FIG. 10 is a schematic partial view showing a second embodiment of a tie rod-equipped housing. [Figure 4] 10 is a flowchart illustrating an embodiment of a method for manufacturing a tie rod-equipped housing. DETAILED DESCRIPTION OF THE INVENTION

[0020] Figures 2a to 2g show schematic partial views of a first embodiment of a tie rod equipped housing.

[0021] The tie rod-equipped housing, partially shown in schematic form in Figure 2a, has a housing portion 40 shaped so that the housing portion 40 at least partially encloses an interior volume 42. The housing portion 40 may be, for example, a cover. It should be noted, however, that the configurability of the tie rod-equipped housing described below is not limited to any particular shape or material for the housing portion 40.

[0022] The tie-rod-equipped housing also includes a tie rod 46 that extends into the interior volume 42 and protrudes from the housing portion 40 through an opening 44 formed in the housing portion 40. The tie rod 46 can be understood to be specifically a tie rod. An inner section 46a of the tie rod 46 extends into the interior volume 42, while an outer section 46b of the tie rod 46 protrudes to the outer surface of the housing portion 40.

[0023] A nut 48 of the tie rod-equipped housing is threaded onto an inner section 46a of the tie rod 46 that extends into the internal volume 42, so that the contact surface 48a of the nut 48, or a washer disposed on the tie rod 46 between the nut 48 and the housing section 40, contacts the housing section 40. In the example of FIGS. 2a to 2g, the contact surface 48a of the nut 48 contacts the housing section 40. The nut 48 is shown enlarged from different sides in FIGS. 2b to 2d. A screw nut or nut may also be understood as the nut 48. The nut 48 is preferably threaded onto a thread 46c, such as an M10 thread, formed on the inner section 46a of the tie rod 46. To this end, an internal thread matching the thread 46c may be formed on at least one partial inner surface of an inner bore 48b extending through the nut 48. The inner bore 48b of the nut 48 may be understood to be, in particular, a cylindrical inner bore 48b.

[0024] A bushing 50 is slidably arranged on the inner section 46a of the tie rod 46 on the side of the nut 48 facing away from the housing part 40, with the tie rod 46 protruding through an inner hollow space 52 of the bushing 50. The bushing 50 is shown enlarged from different sides in Figures 2e to 2g. A sliding bushing, plain bearing bushing, or bushing may also be understood as the bushing 50. The bushing 50 may be made of a plastic, in particular a thermoplastic resin, for example. A particularly preferred material for the bushing 50 is, for example, polyoxymethylene (POM).

[0025] 2e to 2g, the inner hollow space 52 of the bushing 50 is configured on the side facing the nut 48 so that the bushing 50 can slide via at least one partial section 48c of the nut 48 facing away from the housing part 40, so that at least the partial section 48c of the nut 48 projects into the inner hollow space 52 of the bushing 50. In this way, at least the partial section 48c of the nut 48 facing away from the housing part 40 can be inserted into the inner hollow space 52 of the bushing 50. By "at least one partial section 48c of the nut 48 can be inserted into the inner hollow space 52 of the bushing 50," it is understood that at least the partial section 48c of the nut 48 projecting into the inner hollow space 52 is surrounded / encircled in two dimensions by the bushing 50, when viewed in a cross section oriented perpendicular to the central longitudinal axis 56 of the tie rod 46 and intersecting the partial section 48c projecting into the inner hollow space 52.

[0026] The preferred configuration of the inner hollow space 52 of the bushing 50 described in the previous paragraph, in which at least one subsection 48c of the nut 48 can be inserted into the inner hollow space 52, allows for a reduction in the overall length / design space of the tie-rod-equipped housing while maintaining the maximum possible stroke of the bushing 50. The reduction in the overall length of the tie-rod-equipped housing compared to the prior art facilitates assembly of the tie-rod-equipped housing or a hydraulic device configured with a tie-rod-equipped housing, particularly on and / or within a vehicle / automobile. Alternatively, the preferred configuration of the inner hollow space 52 of the bushing 50 can be used to increase the maximum possible stroke of the bushing 50 while maintaining the overall length of the tie-rod-equipped housing.

[0027] The side of the bushing 50 facing the nut 48 preferably has an extension 52a of the inner hollow space 52 configured so that at least the partial section 48c of the nut 48 facing away from the housing part 40 can be inserted into the extension 52a of the inner hollow space 52. The extension 52a of the hollow space 52 can also be called a cavity of the inner hollow space 52 into which at least the partial section 48c of the nut 48 can enter. The extension 52a of the inner hollow space 52 may be configured to have a cylindrical outer-casing inner surface. The minimum inner diameter Φ of the cylindrical outer-casing inner surface of the extension 52a of the inner hollow space 52 may be wide enough to allow at least the partial section 48a of the nut 48 to enter therein. For example, the minimum inner diameter Φ of the cylindrical outer-casing inner surface of the extension 52a of the inner hollow space 52 may be at least 18 mm.

[0028] 2e to 2g, the bushing 50 is configured with spring members 50a and lugs 50b for clamping the sheet metal part 53 to the bushing 50. However, the design of the bushing 50 is relatively open to choice.

[0029] The tie-rod-equipped housing, partially shown diagrammatically in Figures 2a to 2g, further includes an annular sealing member 54 disposed on the tie rod 46. The opening 44, through which the outer region 46b of the tie rod 46 protrudes from the housing portion 40, is fluid-tightly sealed by at least the annular sealing member 54. Another advantage of the tie-rod-equipped housing of Figures 2a to 2g is that the annular sealing member 54 is disposed on the outer region 46b of the tie rod 46. Therefore, the location of the annular sealing member 54 can be rephrased as moving the annular sealing member 54 from the internal volume 42 to the outer surface of the housing portion 40, as compared to the prior art described above.

[0030] Unlike the prior art, the arrangement of the annular seal 54 in the outer region 46b of the tie rod 46 allows for a further reduction in the overall length of the tie rod-equipped housing while maintaining the maximum possible stroke of the bushing 50. In particular, the "total seal length" of the annular seal 54 can be reduced in this way relative to the overall length of the tie rod-equipped housing. As will become clear with reference to the following description, there is usually sufficient design space on the outer surface of the housing section 40 for the annular seal 54, and the annular seal 54 can be integrated into this design space so that installing the annular seal 54 in the tie rod-equipped housing does not (substantially) affect the overall length of the tie rod-equipped housing.

[0031] A further advantage of moving the annular seal member 54 from the internal volume 42 to the external surface of the housing part 40 is the liquid-tight sealing of the edge of the opening 44 located on the external surface. This contributes to a more efficient prevention of liquid penetration / intrusion from the external surface of the housing part 40 through the opening 44 into the internal volume 42, thus improving corrosion protection of all components of the tie-rod-equipped housing located inside the internal volume 42.

[0032] In the tie rod-equipped housing of FIGS. 2a through 2g, the annular sealing member 54 is, by way of example only, an O-ring 54. The O-ring 54 may be made of, for example, an elastomer. Accordingly, a low-cost, standard component may still be used for the O-ring 54. Alternatively, the annular sealing member 54 may be made of another annular molded sealant or a ring-cured adhesive. The ring-cured adhesive may be made of, for example, silicone or acrylic. To dispense the adhesive, a dispenser needle of an automatic dispenser device may move in a circular orbit around the central longitudinal axis 56 of each tie rod 46. Optionally, the adhesive may be precisely distributed by a plastic ring pressed against the tie rod 46, followed by ring-curing.

[0033] Due to the corrosion protection provided by the transfer of the annular sealing element 54 from the internal volume 42 to the external surface of the housing part 40, the external surface of the nut 48, and in particular the entire external surface of the nut 48, can be made of zinc without any problems. There is no need to worry about wetting of the nut 48 by liquids penetrating / entering the internal volume 42, since the annular sealing element 54 arranged in the external region 46b of the tie rod 46 already (usually) prevents wetting of the edges of the opening 44 located on the external surface. In this way, the conventional need for a relatively expensive zinc-nickel coating of the nut 48 is eliminated.

[0034] Furthermore, moving the annular sealing member 54 from the interior volume 42 to the exterior surface of the housing portion 40 eliminates the conventional need to integrate the annular sealing member 54 within the bore 48b of the nut 48. Accordingly, the nut 48 may be configured to have a relatively short overall dimension along a central longitudinal axis 48d oriented centrally through the bore 48b of the nut 48. The overall dimension of the nut 48 along the central longitudinal axis 48d may be, for example, 7 mm or less.

[0035] Because the nuts 48 do not contact the annular seal member 54 located on the same tie rod 46, there is no need to worry about the annular seal member 54 contacting and thus damaging the internal threads and / or threads 46c of the nuts 48. This eliminates the cost of the conventional prior art to ensure that neither the internal threads nor the threads 46c of the nuts 48 are present / adjacent at or immediately around the annular seal member 54. Optionally, the nuts 48 may be clamped to the associated tie rod 46, which improves retention of the nuts 48 (when the nuts 48 are clamped, the threads 46c that each nut 48 contacts are radially pressed / deformed, thereby securing the nuts 48 from unintentional removal from the associated tie rod 46). For example, the nuts 48 may be clamped to the associated tie rod 46 by multiple radial presses, as shown by arrows 48e in FIGS. 2c and 2d. When the nut 48 is clamped to the tie rod 46 by three radial press-ins, it is preferable that two adjacent radial press-ins are offset from each other by an angle of 120°. Alternatively, the threads 46c of the tie rod 46 and the internal threads of the nut 48 can be axially stressed against each other to prevent the nut 48 from unintentionally coming off the tie rod 46. Damage to the annular sealing member 54 due to tightening of the nut 48 or due to the threads 46c of the nut 48 being axially stressed against each other is not a concern because the nut 48 does not come into contact with an annular sealing member 54 disposed on the same tie rod 46.

[0036] 2a to 2g, the contact surface 48a of the nut 48 that contacts the housing part 40 has a first minimum outer diameter D1 oriented perpendicular to the central longitudinal axis 48d of its inner bore 48b, which is larger than a second maximum outer diameter D2 oriented perpendicular to the central longitudinal axis 48d of the inner bore 48b of a subsection 48c of the nut 48 that is insertable into the inner hollow space 52 of the bushing 50. The contact surface 48a thus provides a sufficient support surface for supporting the housing part 40. The second maximum outer diameter D2 of the subsection 48c of the nut 48 that is insertable into the inner hollow space 52 of the bushing 50 may be, for example, 18 mm or less.

[0037] In particular, the nut 48, shown enlarged in FIGS. 2b-2d, includes a form-fitting portion 48f and a cylindrical portion 48g adjacent to the form-fitting portion 48f, the form-fitting portion 48f and the cylindrical portion 48g being integrally formed with one another. The form-fitting portion 48f is configured to have a first minimum outer diameter D1 oriented perpendicular to the central longitudinal axis 48d of the inner bore 48b, while the cylindrical portion 48g has a second maximum outer diameter D2 oriented perpendicular to the central longitudinal axis 48d of the inner bore 48b. The form-fitting portion 48f serves as an interface / contact portion for a screwing tool used to thread the nut 48 onto the threads 46c. The surface of the form-fitting portion 48f may be hexagonal, for example. The size between the flats of the form-fitting portion 48f may be 19 mm or greater. The partial section 48c of the nut 48 that can be inserted into the inner hollow space 52 of the bushing 50 can be rephrased as the "end section" of the cylindrical section 48g that faces away from the form-fitting section 48f.

[0038] 2a, for the sake of clarity, only one tie rod 46 of the tie rod-equipped housing is shown with its nut 48 and bushing 50. However, it goes without saying that the tie rod-equipped housing may be configured to have multiple tie rods 46, all of which are attached by their nuts 48 to the openings 44 of the housing part 42 in such a way that the bushings 50 arranged on the respective tie rods 46 are slidable therethrough. For all tie rods 46, the respective nuts 48 and the bushings 50 arranged on the same tie rod 46 may be configured in such a way that the bushings 50 are slidable through at least a partial section 48c of the nut 48 arranged on the same tie rod 46 that faces away from the housing part 40.

[0039] 2a to 2g are assembled on and / or in a hydraulic device 58 (only partially shown) such that the outer section 46b of the tie rod 46 of the tie rod-equipped housing protrudes through a hole 60 in a flange 62 of the hydraulic device 58. Since such a type of flange 62 is usually constructed with a relatively large minimum thickness to ensure a suitable strength, the flange 62 / its hole 60 provides sufficient design space for the integration of the annular sealing element 54. The placement of the annular sealing element 54 in the hole 60 formed in the flange 62 additionally ensures that the annular sealing element 54 does not (substantially) affect the overall length of the tie rod-equipped housing.

[0040] The flange 62 may be pressed against the housing part 40 by a device nut 64 that is screwed onto the outer section 46b of the tie rod 46. A further thread 46d, for example an M8 thread in particular, may be formed in the outer section 46b of the tie rod 46 for screwing the device nut 64. The housing part 40 and the flange 62 may in particular be clamped together under a prestress.

[0041] In the example of Figures 2a to 2g, the hydraulic device 58 is, by way of example, a master brake cylinder 58, of which only a rod piston 66 and a return spring 68 are shown in Figure 2a. An electromechanical brake booster 70 precedes the master brake cylinder 58, and Figure 2a only partially shows an output rod 72, a reaction disc 74, an input rod 76, and a valve body 78 of the electromechanical brake booster 70. However, the components of the master brake cylinder 58 and the electromechanical brake booster 70 shown in Figure 2a should be interpreted as exemplary only. Alternatively, the hydraulic device 58 may be, for example, a plunger device or a hydraulic brake system.

[0042] FIG. 3 shows a schematic partial view of a second embodiment of a tie rod-equipped housing.

[0043] In the tie-rod-equipped housing of Figure 3, the entire nut 48 is configured as a form joint 48f. The nut 48 may be, for example, an M10 nut 48. The nut 48 is threadedly fixed to an inner region 46a of the tie rod 46 that projects into the internal volume 42 so that a washer 80, which is disposed on the tie rod 46 between the nut 48 and the housing portion 40, contacts the housing portion 40. However, in Figure 3, only the nut 48 and the washer 80 are shown as components of the tie-rod-equipped housing.

[0044] In the tie rod-equipped housing of Fig. 3 as well, the inner hollow space 52 of the bushing 50 is configured on the side facing the nut 48, and the bushing 50 can slide via at least one partial section 48c of the nut 48 facing away from the housing part 40, so that at least the partial section 48c of the nut 48 extends into the inner hollow space 52 of the bushing 50. With regard to other characteristics and configuration requirements of the tie rod-equipped housing of Fig. 3, reference is made to the explanation given for Figs. 2a to 2g.

[0045] FIG. 4 shows a flowchart illustrating an embodiment of a method for manufacturing a tie rod-equipped housing.

[0046] In method step S1 of the manufacturing method described herein, a tie rod is placed in a housing part at least partially surrounding an internal volume, so that the tie rod extends into the internal volume and protrudes from the housing part through an opening formed in the housing part. In subsequent method step S2, a nut is screwed onto an inner section of the tie rod extending into the internal volume, so that the contact surface of the nut or a washer disposed on the tie rod between the nut and the housing part contacts the housing part. In further method step S3, a slidable bushing is placed on the inner section of the tie rod on the side of the nut facing away from the housing part, so that the tie rod protrudes through the inner hollow space of the bushing and the bushing is slidable through at least one partial section of the nut facing away from the housing part, so that at least a partial section of the nut protrudes into the inner hollow space of the bushing. Method steps S1 to S3 can be performed in any chronological order.

[0047] The manufacturing method described herein also provides the advantages described above. Additionally, the manufacturing method described herein can also be used to implement other features of the tie rod-equipped housing described above.

[0048] In a further development, an optional method step S4 can be performed to assemble the tie rod-equipped housing manufactured by method steps S1 to S3 onto and / or into the hydraulic device. In method step S4, the tie rod-equipped housing is assembled onto and / or into the hydraulic device so that the outer sections of the tie rods of the tie rod-equipped housing protruding from the housing parts protrude through holes in the flanges of the hydraulic device. [Explanation of symbols]

[0049] 40 Housing part 42 internal volume 44 Opening 46 tie rod 46a inner area 46b Outer area 48 Nut 48a Contact surface 48b inner hole 48c subarea 48d Center long axis 50 Bush 52 Inner hollow space 54 Sealing material 58 Hydraulic equipment 60 holes 62 flange 80 washer D1 Minimum outer diameter D2 Maximum outer diameter

Claims

1. A tie rod-equipped housing, a housing portion (40) shaped to at least partially enclose an interior volume (42); a tie rod (46) extending into the interior volume (42) and projecting from the housing portion (40) through an opening (44) formed in the housing portion (40); a nut (48) screwed onto an inner region (46 a) of the tie rod (46) projecting into the internal volume (42) so that a contact surface (48 a) of the nut (48) or a washer (80) arranged on the tie rod (46) between the nut (48) and the housing part (40) contacts the housing part (40); and a bushing (50) slidably arranged on the inner region (46 a) of the tie rod (46) on a side of the nut (48) facing away from the housing part (40), the tie rod (46) protruding through an inner hollow space (52) of the bushing (50), 1. A tie rod-equipped housing, characterized in that the inner hollow space (52) of the bushing (50) is configured on the side facing the nut (48) so that the bushing (50) can slide via at least one partial section (48c) of the nut (48) facing away from the housing part (40), so that at least the partial section (48c) of the nut (48) projects into the inner hollow space (52) of the bushing (50).

2. 2. The tie rod-equipped housing of claim 1, wherein the tie rod-equipped housing has an annular seal member (54) disposed on the tie rod (46), the opening (44) through which an outer region (46b) of the tie rod (46) protrudes from the housing portion (40) is fluid-tightly sealed by at least the annular seal member (54), and the annular seal member (54) is disposed on the outer region (46b) of the tie rod (46).

3. 3. The tie rod equipped housing of claim 2, wherein the annular seal member (54) is an annular molded seal, an O-ring (54), and / or an annular cured adhesive.

4. 4. The tie rod-equipped housing according to claim 1, wherein a central longitudinal axis (48d) extending through a center of the inner bore (48b) of the nut (48) can be defined, and the contact surface (48a) of the nut (48) that contacts the housing part (40) has a first minimum outer diameter (D1) oriented perpendicular to the central longitudinal axis (48d) of the inner bore (48b) of the nut (48), which minimum outer diameter is larger than a second maximum outer diameter (D2) oriented perpendicular to the central longitudinal axis (48d) of the inner bore (48b) of the nut (48), of the subsection (48c) of the nut (48) that is insertable into the inner hollow space (52) of the bushing (50).

5. 5. A tie rod mounted housing according to any one of claims 1 to 4, wherein the nut (48) is clamped to the associated tie rod (46).

6. The nut (48) is clamped to the associated tie rod (46) by three radial press-fits, and two adjacent radial press-fits are spaced apart by an angle of 120°.

6. The tie rod equipped housing of claim 5, wherein the tie rods are offset relative to each other.

7. 7. The tie rod-equipped housing of claim 1, wherein the outer surface of the nut (48) is made of zinc.

8. In the hydraulic device (58), 8. A hydraulic device having a tie-rod-equipped housing according to claim 1, wherein an outer section (46b) of the tie-rod (46) of the tie-rod-equipped housing is assembled to a surface and / or an interior of the hydraulic device (58) so as to protrude through a hole (60) in a flange (62) of the hydraulic device (58).

9. The hydraulic device (58) of claim 8, wherein the hydraulic device (58) is a master brake cylinder (58), a plunger device, or a hydraulic braking system.

10. A method of manufacturing a tie rod-equipped housing, comprising the steps of: a tie rod (46) is disposed in a housing portion (40) that at least partially surrounds an internal volume (42) such that the tie rod (46) extends into the internal volume (42) and protrudes from the housing portion (40) through an opening (44) formed in the housing portion (40) (S1); a nut (48) is screwed onto an inner region (46a) of the tie rod (46) projecting into the internal volume (42) so that a contact surface (48a) of the nut (48) or a washer (80) arranged between the nut (48) and the housing part (40) on the tie rod (46) comes into contact with the housing part (40) (S2); a slidable bushing (50) is arranged on the inner section (46a) of the tie rod (46) on the side of the nut (48) facing away from the housing part (40) so that the tie rod (46) protrudes through an inner hollow space (52) of the bushing (50) and the bushing (50) is slidable through at least one partial section (48c) of the nut (48) facing away from the housing part (40) so that at least the partial section (48c) of the nut (48) protrudes into the inner hollow space (52) of the bushing (50) (S3).

11. A method for assembling a tie rod-equipped housing on and / or in a hydraulic device (58), the tie rod-equipped housing having the features of any one of claims 1 to 7 or manufactured according to a manufacturing method according to claim 10, comprising the steps of: The method (S4) includes assembling the tie rod-equipped housing to the surface and / or interior of the hydraulic device (58) so that an outer section (46b) of the tie rod (46) of the tie rod-equipped housing protruding from the housing portion (40) protrudes through a hole (60) in a flange (62) of the hydraulic device (58).

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