Fittings for vehicles

Abstract

The invention relates to an accessory having a base (12) and at least one pivoting device (11) which is pivotable about a pivot axis (a) relative to the base (12), the accessory having a drive device (23) with which the pivoting device (11) is pivotable between a first position and a second position. The pivoting device (11) comprises a base part (15) and a displacement part (16), wherein the displacement part (16) is movably guided in translation relative to the base part (15) between a primary position and a secondary position, the base (12) is provided with a first holding surface (21) which is in engagement with a second holding surface (22) which is provided to the displacement part (16) and which rolls on the first holding surface during the pivoting movement between the first position and the second position, wherein the displacement part (16) is moved between the primary position and the secondary position.

Description

Technical Field

[0001] The present invention relates to an accessory for a vehicle having at least one pivoting device comprising a pivotable arm having a base and a portion that is translatably movable relative to the base. Background Technology

[0002] A headrest-shaped accessory is known from the prior art. The headrest has arms on two side regions of a base that are pivotable between a non-use position and a use position. Each arm includes a base and a retractable portion. The base is pivotally actuated by means of an actuator. The retractable portion can move between a base position and a retractable position by means of a separate actuator. Summary of the Invention

[0003] The objective of this invention is to provide an accessory that results in lower manufacturing costs and less control costs.

[0004] This task is solved by equipping components with advantageous features.

[0005] The device includes a base and at least one pivoting device having an arm pivotable relative to the base about a pivot axis between a first position and a second position. For example, two pivoting devices are constructed on the base. The arms of the two pivoting devices can move synchronously, for example. Alternatively, the arms of the two pivoting devices can also move asynchronously with each other.

[0006] In another embodiment, only a pivoting device is supported on the base. The arm of the pivoting device can pivot between a first position and a second position using a drive mechanism.

[0007] The pivoting device includes an arm having a base and an extension portion. The extension portion is translatably movable relative to the base between a primary position and a secondary position. In the primary position, the base and the extension portion are in a nested position. In the secondary position, the base and the extension portion are in a stretched position. This means that the arm formed by the base and the extension portion has a shorter length in the primary position than in the secondary position.

[0008] The actuator also moves the removal part between the primary and secondary positions. Therefore, the actuator is configured not only for the pivoting motion of the arm but also for the translational motion of the removal part relative to the base.

[0009] The removing part is guided on the base by means of a guiding device. With the aid of the guiding device, the removing part is movably guided on the base between a primary position and a secondary position.

[0010] The base is provided with a first retaining surface that engages with a second retaining surface, which is disposed on the disengaged portion. The first retaining surface is circular. The first retaining surface is constructed, for example, on a cylindrical element. During pivoting movement between a first position and a second position, the second retaining surface rolls on the first retaining surface, wherein the disengaged portion moves between the primary position and the secondary position.

[0011] A particular advantage of this invention is that only a driver exists for the pivoting movement of the base between the first and second positions and for the retraction movement of the retractor between the primary and secondary positions. Therefore, the manufacturing and control of the components are less complex in terms of component costs and control costs. Nevertheless, the desired functions, including pivoting and translational movements, are ensured using the solution according to the invention.

[0012] The second retaining surface is, for example, fixedly connected to the removal portion. The second retaining surface can be connected to the removal portion directly or indirectly. In this embodiment, the first retaining surface can be connected to the base, for example, by common fastening methods. Alternatively, the first retaining surface is, for example, integrally formed on the base. For example, the first retaining surface does not move relative to the base. In this embodiment, during pivoting, relative movement occurs between the first and second retaining surfaces, such that the second retaining surface moves around the first retaining surface guided by an arm formed by the base and the removal portion. This embodiment using the second retaining surface allows for simple manufacturing.

[0013] According to alternative embodiments, for example, the first retaining surface is movable relative to the base. The base can also be movable relative to the base. In this case, the first retaining surface rotates, causing the support removal portion to move relative to the base. In a specific pivoting movement of the base, the removal portion can perform a greater relative movement relative to the base in this embodiment compared to the case where the first retaining surface is not movable relative to the base.

[0014] For example, the first retaining surface is formed by a gear ring or gear, and the second retaining surface is formed by a toothed rail. The gear ring is, for example, fixedly connected to the base. Alternatively, the gear is, for example, movable relative to the base. The gear is, for example, driven by the same driver as the pivot. In this embodiment, no slippage occurs between the first and second retaining surfaces because the teeth are fitted together in a mating manner.

[0015] According to an alternative embodiment, the first retaining surface is formed by a friction wheel and the second retaining surface is formed by a friction rail. In this embodiment, the friction wheel can also be fixedly connected to the base and therefore immovable relative to the base, or alternatively, rotatable relative to the base. Using this embodiment, noiseless operation can be ensured when the retaining surfaces roll relative to each other.

[0016] To ensure the removal portion is guided on the base, the fitting includes a guiding device with a first guiding element disposed on the base, which engages with a second guiding element of the removal portion. This guiding element is, for example, a dovetail guide, wherein the side region of one guiding element is arranged in a groove of the other guiding element, such that only one degree of freedom exists in two opposite directions of movement. This prevents the removal portion from unintentionally detaching from the base.

[0017] The second retaining surface is arranged, for example, between the guide surface of the second guide device and the first retaining surface, such that the second retaining surface is always engaged with the first retaining surface when the pivot moves between the first position and the second position. For example, when the first and second retaining surfaces are constructed in the form of teeth, a gap may exist between the retaining surfaces. If, for example, the retaining surfaces are constructed as friction surfaces, a press fit may be provided.

[0018] The drive unit includes, for example, at least one motor, such as an electric motor. Alternatively, all suitable drives may be considered. Additionally, the drive may include, for example, a transmission mechanism to set the required gear ratio of the rotational speed between the drive shaft and the base of the motor or between the drive shaft and the first retaining surface.

[0019] The fitting is, for example, a headrest, and the pivoting device is an arm pivotable relative to the base. The arm is supported, for example, on at least one side region, particularly on two opposing side regions of the headbox that forms the base. The base and / or the extension portion can serve, for example, as a support for at least one speaker and / or at least one microphone and / or other electronic equipment. Alternatively or additionally, the arm can also serve as a headrest for the seat occupant, for example, in a second position. In a non-use position, for example, the base is arranged in a first position, and the extension portion is arranged generally vertically in the primary position. In the use position, the base pivots forward approximately 90° about the first position into the second position. The term "forward" here refers to the sagittal plane of the seat occupant sitting in a vehicle seat equipped with a headrest.

[0020] According to one embodiment, the accessory is an armrest and the pivoting device is an armrest capable of pivoting relative to the base. The armrest is arranged, for example, generally vertically in a first position, wherein, in the context of this invention, the term "vertical" includes a deviation from the vertical line up to 20°. As the armrest pivots from the first position to a second position, the removed portion of the armrest moves from the primary position to the secondary position, wherein the length of the armrest increases relative to the primary position.

[0021] Embodiments of the invention are described exemplarily with reference to the accompanying drawings in the following description. Here, for clarity (wherever different embodiments are involved), the same or similar parts, elements, or areas are indicated by the same reference numerals, partially with lowercase letters.

[0022] The features described with reference to only one embodiment may also be arranged in any other embodiment of the invention within the scope of the invention. Such modified embodiments (although not shown in the drawings) are included together with the invention.

[0023] All disclosed features are essential to this invention. Therefore, the disclosure of this application also fully includes the disclosures of the relevant priority documents (copies of earlier applications) as well as the disclosures of referenced publications and the devices of the prior art described, with the aim of incorporating individual or multiple features of these documents together in this application. Attached Figure Description

[0024] It is shown that:

[0025] Figure 1 A perspective view is shown of a headrest-shaped accessory with a pivoting mechanism in the form of a grand piano, arranged in a first position, which is a non-use position.

[0026] Figure 2 Showing according to Figure 1 The diagram shows the pivoting device arranged in a second position, which is the usage position.

[0027] Figure 3 A perspective rear view of the headrest is shown, in which the rear cover is not shown for clarity.

[0028] Figure 4 Showing according to Figure 1 Side view of the headrest.

[0029] Figure 5 Showing according to Figure 4 A side view, wherein the pivoting device is arranged in the middle position.

[0030] Figure 6 Showing according to Figure 4 A side view, wherein the pivoting device is arranged in the second position.

[0031] Figure 7 Showing according to Figure 3 The cross-sectional view of the section line BB in the diagram.

[0032] Figure 8A cross-sectional view is shown, in which the pivoting device is in the middle position.

[0033] Figure 9 Provided by Figure 7 A cross-sectional view, in which the pivoting device is in the second position. Detailed Implementation

[0034] exist Figure 1 The image shows a headrest-type accessory 10. The headrest base 12 is supported on retaining rods 13a and 13b, which can be fastened to the back of a vehicle seat (not shown). A headrest surface 14 is constructed on the base 12.

[0035] In this embodiment, the mounting component 10 is provided with pivoting devices 11a and 11b, which are constructed on opposite side regions 20a and 20b. Figure 1 In this configuration, only one pivoting device 11b is visible. Pivoting device 11a is only visible in... Figure 3 As shown in the diagram. Nevertheless, pivoting device 11a corresponds to pivoting device 11b, which is basically described herein.

[0036] Pivoting devices 11a and 11b include an arm 24 pivotally supported on the base 12 of the mounting 10 about a pivot axis a. The arm 24 is capable of... Figure 1 The first position shown and Figure 2 The pivot point is between the second position shown. The pivot angle is, for example, approximately 90°.

[0037] The pivoting device 11 has audio components, such as a speaker and / or microphone, which should be moved to a position in which, with respect to direction x1, it is in front of the head abutment surface 14 of the base 12 for favorable sound and, if necessary, favorable voice reception. Additionally, a translational relative movement of the remover 16 relative to the base 15 is performed synchronously with the pivoting movement, such that the remover 16 and the base 15 are in a nested arrangement in a first position and in a stretched arrangement in a second position.

[0038] In the extended arrangement, arm 24 has a length L2. In the nested arrangement, the arm has a smaller length L1 relative to the extended arrangement. When audio functionality is not required, the seat passenger's freedom of movement and line of sight are not impaired.

[0039] Arm 24 includes a base 15 and a retractable portion 16 that is translatably movable relative to the base 15 in directions p1 and p2. A bracket 17 is held on the retractable portion 16 and surrounds the audio component in a manner not shown.

[0040] The guiding device 30 has a first guiding element 25 at the base 15 and a second guiding element 26 at the removal portion 16. The first guiding element 25 and the second guiding element 26 of the removal portion 16 work together to allow the removal portion 16 to move in directions p1 and p2. Directions p1 and p2 relate to the movement of the removal portion 16 relative to the base 15.

[0041] The guide devices 25 and 26 are configured, for example, such that only the remover 16 has degrees of freedom of movement relative to the base 15 in directions p1 and p2. In this case, this is a so-called dovetail guide, wherein the lateral region of the guide device 26 is guided in the groove 27 of the guide track of the guide device 25.

[0042] The base 15 is held on the retainer 18, which is fastened to the rotating shaft 19. The rotating shaft 19 can be driven by the drive shaft 28 of the motor 23 (see...). Figure 3 The motor is driven by a gearbox held on the base 12. As in this embodiment, the motor 23 can drive the rotating shaft 19 in two different rotational directions, u1 and u2. Alternatively, the rotational direction can be reversed by means of a gearbox intermediately connected between the retainer 18 and the rotating shaft 19. The motor 23 may also include a transmission mechanism for changing its output speed.

[0043] On the two side regions 20a and 20b of the base 12, a first retaining surface 21, in the form of a gear tooth on each side, is fixedly and immovably connected to the base 12. The teeth of the first retaining surface 21 are engaged with the teeth of a gear rail formed by a second retaining surface 22. The second retaining surface 22 is fixedly connected to or integrally constructed with the removal portion 16.

[0044] Arm 24 rotates around axis a from according to Figure 4 and Figure 7 The movement of the first position along direction u1 causes the retractor 16 to move relative to the base 15 along direction p1. In the first position, the arm 24 has a length L1. When the arm 24 has reached the second position (see...), Figure 6 and Figure 9 The removed portion 16 extends to its maximum extent and has a length L2.

[0045] In this embodiment, the first position is a vertical position, meaning the central axis m of the base 15 is arranged approximately vertically. The concept of "vertical" in the context of this invention includes a vertical line and deviations of the base's position from the vertical line along two rotational directions up to 20°. In this example, the first position is a non-use position.

[0046] In the second position, the base 15 is pivoted approximately 90 degrees about the first position. The second position in this example is a horizontal position, meaning that the central axis m of the base 15 is arranged approximately horizontally. The term "horizontal" in the sense of this invention includes a horizontal line and a deviation of the base's position from the horizontal line in both rotational directions up to 20 degrees. The second position in this example is the usage position.

[0047] Arm 24 is driven in the opposite direction of rotation by means of motor 23, so that the arm rotates from the second position to the first position along direction u2. During this movement, the remover 16 moves relative to the base 15 in direction p2.

[0048] exist Figures 6 to 9 As can be seen, in all positions of the base 15, the second retaining surface 22 of the retractable portion 16 is arranged between the guide surface 29 and the first retaining surface 21 of the base 15, such that the first retaining surface 21 and the second retaining surface 22 are always engaged. Because in this embodiment the first retaining surface 21 and the second retaining surface 22 include interacting teeth, a clearance fit is sufficient, for example. Alternatively, instead of the teeth, the first retaining surface 21 and the second retaining surface 22 may have friction surfaces, for example, an interference fit may be chosen.

[0049] exist Figures 7 to 9 The middle shows Figures 4 to 6 The position of the pivoting device 20b is shown in cross-section. The drive shaft 28 and the rotation shaft 19 are visible.

[0050] As an alternative to the embodiments described herein, the device 10 may also have only a pivoting device with an arm 24, which includes a base 15 and a retraction portion 16.

Claims

1. An accessory for a vehicle, having a base (12) and at least one pivoting device (11a, 11b), the pivoting device comprising an arm (24) pivotable about a pivot axis (a) relative to the base (12), the accessory having a drive mechanism by which the arm (24) is pivotable between a first position and a second position, characterized in that, The arm (24) includes a base (15) and a retractor (16), wherein the retractor (16) is translatably guided relative to the base (15) between a primary position and a secondary position, the base (12) is provided with a first retaining surface (21) in engagement with a second retaining surface (22), the second retaining surface is provided to the retractor (16), and the second retaining surface rolls on the first retaining surface during pivoting between the first position and the second position, wherein the retractor (16) moves between the primary position and the secondary position, the base (15) has a first guide device (25) in engagement with a second guide device (26) of the retractor (16), and the second retaining surface (22) of the retractor (16) is arranged between the guide surface (29) of the second guide device (26) and the first retaining surface (21), such that the first retaining surface (21) contacts the second retaining surface (22).

2. The component according to claim 1, characterized in that, The first retaining surface (21) is fixedly connected to the base (12).

3. The component according to claim 1, characterized in that, The first holding surface (21) is rotatably driven relative to the base (12).

4. The accessory according to any one of claims 1 to 3, characterized in that, The second retaining surface (22) is fixedly connected to the removed part (16).

5. The accessory according to any one of claims 1 to 3, characterized in that, The second retaining surface (22) is formed by a toothed track, and the first retaining surface (21) is formed by a gear.

6. The accessory according to any one of claims 1 to 3, characterized in that, The first retaining surface (21) is composed of a friction wheel, and the second retaining surface (22) is composed of a friction rail.

7. The accessory according to claim 1, characterized in that, The side region of one of the first and second guiding devices is guided in the slot (27) of the other guiding device.

8. The accessory according to claim 1, characterized in that, The guiding device has a first guiding device and a second guiding device, the guiding device (30) being configured such that movement in opposite directions (p1, p2) of the motion track is possible, and movement in other directions of motion is prevented.

9. The accessory according to any one of claims 1 to 3, characterized in that, The drive unit includes at least one electric motor (23).

10. The accessory according to any one of claims 1 to 3, characterized in that, The accessory (10) is a headrest, and the pivoting device is an arm (24) that is pivotable relative to the base (12).

11. The accessory according to any one of claims 1 to 3, characterized in that, The accessory (10) is an armrest, and the pivoting device is an armrest that is pivotable relative to the base (12).

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