Vehicle rearview mirror
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- BAYERISCHE MOTOREN WERKE AG
- Filing Date
- 2016-12-22
- Publication Date
- 2026-08-06
AI Technical Summary
Existing vehicle rearview mirrors struggle to adequately reduce engine vibrations, leading to visibility issues, particularly in single-track vehicles, often requiring heavy masses that compromise driving behavior.
A vehicle rearview mirror design featuring a mirror glass mounted on a four-bar linkage mechanism, including a frame, coupler, and rockers, which simulates a long cantilever for soft mounting, reducing engine vibrations while maintaining visibility and allowing for a lightweight, cost-effective construction.
The four-bar linkage design effectively dampens engine vibrations, improving visibility and reducing weight and production costs, while maintaining optimal driving behavior.
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Abstract
Description
[0001] A vehicle rearview mirror is specified. This vehicle rearview mirror can be, in particular, a rearview mirror of a single-track vehicle, such as a motorcycle.
[0002] Mirror glass in car and motorcycle mirrors is mounted in elastic sockets or sealing lips to limit the transmission of engine vibrations and thus the deterioration of visibility. To increase effectiveness, masses are attached to the back of the mirror glass.
[0003] However, it is not always possible to sufficiently reduce the transmission of engine vibrations. Visibility may be impaired in certain engine speed ranges. In some cases, high masses are required to achieve effectiveness, which can have negative consequences for handling, for example, in single-track vehicles.
[0004] It is therefore a problem to be solved for at least some embodiments to specify a vehicle rearview mirror by which the negative effects of engine vibrations can be significantly limited.
[0005] This problem is solved by an object according to the independent patent claim. Advantageous embodiments and further developments of the object are further described in the dependent patent claims, the following description, and the drawings.
[0006] A vehicle rearview mirror described here, according to at least one embodiment, comprises a mirror housing and a mirror glass. The mirror glass is movably mounted relative to the mirror housing by a mirror support arm designed as a four-joint. The mirror support arm designed as a four-joint can, for example, include a frame, a coupling, and two swing arms extending between the frame and the coupling.
[0007] By suspending the mirror glass on a four-joint mechanism, engine vibrations are particularly well compensated. In contrast to mounting in a socket or sealing lip, this allows for a very soft and therefore low-frequency mounting, especially since the four-joint mechanism simulates a very long arm. Furthermore, the direction of movement of the mirror mounting arm can be precisely positioned to minimize any obstruction of the driver's view. Additionally, the rearview mirror described here is inexpensive to manufacture and lightweight. Overall, this rearview mirror can significantly improve the driver's visibility.
[0008] According to another embodiment, the mirror glass is directly attached to a mirror glass support. The mirror glass support can, for example, form the coupling of the four-bar linkage. Furthermore, the coupling of the four-bar linkage can, for example, be directly attached to a mirror glass support. The mirror glass support is preferably connected to the mirror glass at an edge region.
[0009] According to another embodiment, the mirror housing forms the frame of the four-bar linkage. Furthermore, the frame of the four-bar linkage can, for example, be attached directly to the mirror housing.
[0010] According to a further embodiment, the swing arms of the mirror bearing arm, designed as a four-bar linkage, are each rotatably connected to the frame and / or rotatably to the coupling. For example, the swing arms can be designed as rods, each of which is connected to the frame and the coupling via pivot joints.
[0011] According to another embodiment, the rocker arms of the four-bar mirror mounting arm are bonded to the frame and / or the coupling. Furthermore, the rocker arms can, for example, be integrally formed with the frame and / or the coupling. The four-bar mirror mounting arm of the vehicle rearview mirror can, for example, be designed as a hollow profile. This hollow profile can, for example, be a plastic hollow profile. Preferably, the hollow profile is elastically designed. It is further preferred that the hollow profile is designed to react flexibly to shear stress. The hollow profile can also have one or more film hinges. The film hinges can be formed, in particular, at the transitions between the frame, coupling, and / or rocker arms.
[0012] According to another embodiment, the hollow profile is joined to the mirror housing via a socket or an elastomer body. For example, the hollow profile can be bonded to the socket or the elastomer body. Alternatively, the hollow profile can be joined or bonded directly to the mirror housing. Furthermore, the hollow profile can be joined or bonded directly to the mirror glass support on an opposite side.
[0013] According to another embodiment, the mirror glass is mounted in a frame, which may, for example, comprise an elastomer, with the frame preferably being attached to the mirror housing. The frame can, for example, restrict the movement of the mirror glass and further increase the damping.
[0014] According to another embodiment, the mirror glass is mounted so that it is movable relative to the mirror housing that the instantaneous center of motion of the mirror glass always lies outside the mirror housing. In other words, the instantaneous center of motion of the mirror glass can lie completely outside the mirror housing.
[0015] According to another embodiment, the rocker arms of the mirror bearing arm, designed as a four-bar linkage, run essentially parallel to the mirror plane of the mirror glass. The term "essentially" here can mean, for example, that deviations of up to 25° are included.
[0016] According to a further embodiment, the swing arms of the mirror bearing arm each have a length that corresponds to at least 2 / 3 of the height and / or width of the mirror glass. Such a design of the swing arms allows for particularly soft mounting of the mirror glass.
[0017] Further advantages and advantageous embodiments of the vehicle rearview mirror described here result from the following in conjunction with the Fig. 1 and Fig. 2 described embodiments.
[0018] They show: Fig. 1 a schematic representation of a vehicle rearview mirror according to an exemplary embodiment, and Fig. 2 a schematic representation of a vehicle rearview mirror according to a further embodiment.
[0019] In the exemplary embodiments and figures, identical or similarly functioning components may be designated with the same reference numerals. The depicted elements and their relative sizes are not necessarily to scale.
[0020] Fig. 1 shows a vehicle rearview mirror 1 according to a first embodiment. In the case of the vehicle rearview mirror 1This refers in particular to a rearview mirror of a single-track vehicle or a motorcycle.
[0021] The vehicle's rearview mirror 1 a mirror housing 2 and a mirror glass 3, which is movably mounted relative to the mirror housing by means of a mirror bearing arm designed as a four-joint. The mirror bearing arm designed as a four-joint has a frame. 5 , which is visible through part of the vehicle's rearview mirror 1 is formed, a coupling 6 , which are supported by a mirror glass carrier 4 , to which the mirror glass is attached, is formed, and two wings 7 , 8 , which are designed as rods. The swing arms 7 , 8 extend between the frame 5 and the coupling 6 and are each connected via swivel joints 9 with the frame 5 and the paddock 6 tied together.
[0022] The paddock6 forming mirror glass carriers 4 is located in an edge area of the mirror glass 3 directly with the mirror glass 3 connected. The swings 7 , 8 They have different lengths. Alternatively, the wings can 7 , 8 They should also be of the same length. Furthermore, the wings extend 7 , 8 essentially parallel to the mirror plane of the mirror glass 3 .
[0023] The mirror glass 3 is so movable relative to the mirror housing 2 stored so that the instantaneous center of motion of the mirror glass 3 always, i.e., in every possible arrangement of the mirror glass 3 opposite the mirror housing, outside the mirror housing 2 lies.
[0024] As an alternative to the illustrated embodiment, the mirror glass can be 3 for example, also in a transverse direction across the wings7 , 8 with the mirror housing 2 be connected.
[0025] In the Fig. 2 is a vehicle rearview mirror 1 illustrated according to a further embodiment. The vehicle rearview mirror 1 in turn, it features a mirror housing 2 and a mirror glass 3 , which is movable relative to the mirror housing by means of a mirror bearing arm designed as a four-joint 2 It is stored on.
[0026] The mirror bearing arm is designed as a hollow plastic profile, with the hollow plastic profile having two opposing sections which form the swing arms. 7 , 8 of the four-bar linkage, and two further opposing sections which form the frame 5 and the paddock 6 The four-joint joint is characterized by... 6 is directly connected to a mirror glass carrier 4 , on which the mirror glass 3is attached, connected. The frame 5 is via an elastomer body 11 with the mirror housing 2 connected. Alternatively, the frame can be 5 for example, directly with the mirror housing without an elastomer body 2 be connected.
[0027] Preferably, the hollow plastic profile is elastically designed. Furthermore, the hollow plastic profile can, for example, be used at the transitions between swing arms. 7 , 8 and paddock 6 or swings 7 , 8 and frame 5 each have a film hinge.
[0028] Furthermore, the vehicle's rearview mirror indicates 1 a version 10 on, which are directly connected to the mirror housing 2 is connected, and in which the mirror glass 3 is stored. The version 2It may, for example, contain an elastomer and preferably serves as a stop or damping for the mirror glass. 3 .
[0029] The embodiments shown here can significantly reduce the transmission of engine vibrations from a vehicle. Furthermore, the vehicle rearview mirrors shown are 1 They are advantageously inexpensive to manufacture and also have a low weight.
[0030] The features described in the illustrated embodiments can also be combined according to further embodiments. Alternatively or additionally, the embodiments shown in the figures can have further features according to the embodiments described in the general description. Reference symbol list 1 Vehicle rearview mirror 2 mirror housings 3 mirror glass 4 mirror glass supports 5 frame 6 couplings 7 Swing arm 8 Swingarm 9 Swivel joint Version 10 11 Elastomer
Claims
[1] Vehicle rearview mirrors (1), in particular rearview mirrors for a single-track vehicle, comprising - a mirror housing (2), and - a mirror glass (3) which is movably mounted relative to the mirror housing (2) by means of a mirror bearing arm designed as a four-joint. [2] Vehicle rearview mirror according to claim 1, wherein the mirror bearing arm designed as a four-joint has a frame (5), a coupling (6) and two swing arms (7, 8) which extend between the frame (5) and the coupling (6). [3] Vehicle rearview mirror according to one of the preceding claims, wherein the mirror glass (3) is attached to a mirror glass support (4) which forms the coupling (6) of the four-bar linkage and / or to which the coupling (6) of the four-bar linkage is directly attached. [4] Vehicle rearview mirror according to one of the preceding claims, wherein the mirror housing (2) forms the frame of the four-bar linkage and / or the frame of the four-bar linkage is attached directly to the mirror housing (2). [5] Vehicle rearview mirror according to one of the preceding claims, wherein the swing arms (7, 8) of the mirror bearing arm designed as a four-joint are rotatably connected to the frame (5) and / or the coupling (6). [6] Vehicle rearview mirror according to one of the preceding claims, wherein the swing arms (7, 8) are designed as rods which are connected to the frame (5) and the coupling (6) via pivot joints (9). [7] Vehicle rearview mirror according to any one of claims 1 to 4, wherein the swing arms (7, 8) of the mirror bearing arm designed as a four-joint are bonded to the frame (5) and / or the coupling (6) and / or are formed integrally with the frame (5) and / or the coupling (6). [8] Vehicle rearview mirror according to one of the preceding claims 1 to 4 or 7, wherein the mirror bearing arm designed as a four-joint is designed as a hollow profile. [9] Vehicle rearview mirror claim 8, wherein the hollow profile has one or more film hinges. [10] Vehicle rearview mirror according to one of claims 8 or 9, wherein the hollow profile is joined directly to the mirror housing (2) or via a fitting (10) to the mirror housing (2). [11] Vehicle rearview mirror according to one of the preceding claims, wherein the mirror glass (3) is mounted so as to be movable relative to the mirror housing (2) that the instantaneous center of motion of the mirror glass (3) is always outside the mirror housing (2). [12] Vehicle rearview mirror according to one of the preceding claims, wherein the swing arms (7, 8) of the mirror bearing arm designed as a four-bar linkage run substantially parallel to the mirror plane of the mirror glass (3). [13] Vehicle rearview mirror according to one of the preceding claims, wherein the swing arms (7, 8) of the mirror bearing arm designed as a four-joint mechanism each have a length that corresponds to at least 2 / 3 of the height and / or 2 / 3 of the width of the mirror glass (3).
Citation Information
Patent Citations
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Vehicle outside rear view mirror
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Rail vehicle and external mirror device
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