armrest element

Abstract

Armrest element (1) of a seat, in particular a vehicle seat (100), with a base body (2), characterized in that the armrest element (1) has at least a first predefined connection interface (3) to which at least one interchangeable extension module (4) can be fixed with a second predefined connection interface (5), wherein the first connection interface (3) and the second connection interface (5) are designed such that at least one snap-fit ​​connection between the first connection interface (3) and the second connection interface (5) is enabled, wherein the base body (2) extends along a longitudinal axis (X), a width axis (Y) and a height axis (Z), wherein the base body (2) has an outer longitudinal side (6) extending along the longitudinal axis (X),comprising a front side (7) extending along the width axis (Y) and a rear side (8) extending along the width axis (Y), wherein a first connection interface (3) is arranged on the longitudinal side (6) of the base body (2), wherein the first connection interface (3) is designed as an adapter element (9) which is arranged on the base body (2), wherein the adapter element (9) is arranged on the base body (2) by means of at least one positive-locking connection, wherein the adapter element (9) is designed as a strip-shaped element (10), wherein the strip-shaped element (10) comprises a first section (10a) and a second section (10b), wherein the first section (10a) and the second section (10b) form an angle Σ enclose, wherein the first section (10a) extends along the longitudinal axis (X) and the transverse axis (Y), wherein the second section (10b) extends along the longitudinal axis (X) and the vertical axis (Z).

Description

[0001] The invention relates to an additional module for an armrest element of a seat, in particular a vehicle seat. Furthermore, the invention relates to a vehicle seat with an armrest element.

[0002] Armrest elements of this type are used, for example, in commercial vehicles such as tractors, forklifts, construction equipment, and special-purpose vehicles. In such vehicles, the available space around the seat is often limited. Due to the lack of other storage options, there is a need to incorporate storage devices, holders, and similar features on the seat. Furthermore, it is desirable for various control and / or display devices to be mounted directly on the seat, as this minimizes relative movement between the occupant's hand and the control and / or display devices when the seat moves due to the road surface. Integrating such devices requires a wide variety of armrest designs, depending on customer requirements. This represents a significant undertaking for manufacturers.Furthermore, it may be desirable to retrofit existing vehicle seats or armrests with such features.

[0003] The object of the present invention is therefore to provide an armrest element which solves the problems mentioned above.

[0004] The problem is solved by an armrest element according to claim 1.

[0005] The core concept of the invention is an armrest element of a seat, in particular a vehicle seat, comprising a base body, wherein the armrest element has at least one first predefined connection interface to which at least one interchangeable extension module with a second predefined connection interface can be attached, wherein the first connection interface and the second connection interface are configured such that at least one snap-fit ​​connection between the first connection interface and the second connection interface is enabled. Preferably, at least one snap-fit ​​connection is provided between the first connection interface and the second connection interface.

[0006] A pre-designed first connection interface, compatible with a corresponding second pre-designed connection interface, allows for the attachment of a variety of extension modules to the armrest element. These extension modules simply require a second connection interface and can therefore be easily attached to the armrest. This results in a modular armrest that can be adapted to a wide range of applications. The connection between the first and second connection interfaces is direct, as the two interfaces are directly adjacent to each other. A snap-fit ​​connection also offers the advantage of easy detachment, allowing for easy replacement of the extension module. At the same time, a snap-fit ​​connection ensures the necessary mechanical strength.

[0007] Preferably, the armrest element extends along a longitudinal axis (X), a lateral axis (Y), and a vertical axis (Z). Advantageously, the armrest element can be arranged on a seat. It is advantageous to provide a tilt adjustment device by means of which the tilt of the armrest relative to the seat can be adjusted. Accordingly, due to the adjustable tilt, the longitudinal axis and, optionally, the vertical axis of the armrest element can form an angle of inclination with the longitudinal axis and the vertical axis of the seat, respectively. The lateral axis of the armrest element can correspond to the lateral axis of the seat or form an angle with it, preferably an adjustable angle.

[0008] In an advantageous embodiment, the armrest element comprises a support element arranged on the base body. Advantageously, the base body is positioned along its vertical axis beneath the support element. Preferably, the support element comprises or is a cushioning element. However, it is also conceivable that the base body itself forms a support surface. The support surface or support element provides the occupant with a surface on which to rest their arm. An upper surface of the base body comprises the support surface or faces the support element. An underside of the base body faces the opposite side. Advantageously, an operating element for adjusting the tilt of the armrest element is arranged on the underside of the base body. This operating element can be a rotatably mounted rotary knob or a cylindrical element.Preferably, the base body extends along a longitudinal axis (X), a width axis (Y), and a height axis (Z). Advantageously, the base body comprises an outer longitudinal side extending along the longitudinal axis (X), a front side extending along the width axis (Y), and a rear side extending along the width axis. The front side is spaced from the rear side along the longitudinal axis and is substantially opposite it. The term "substantially" is used here and throughout to account for tolerance deviations that do not, however, impair the function of the elements. Advantageously, when the armrest element is installed, the rear side is closer to the backrest than the front side. The outer longitudinal side is spaced from an inner longitudinal side along the width axis and is substantially opposite it. The inner longitudinal side faces an occupant.In an advantageous embodiment, a first connection interface is arranged on the longitudinal side of the base body. Preferably, the first connection interface is arranged on the outer longitudinal side.

[0009] According to a further aspect of the invention, it is advantageous that the first connection interface is designed as an adapter element. Advantageously, the adapter element is arranged on the base body. Preferably, the adapter element is arranged on the base body by means of at least one positive-locking connection. However, it would also be conceivable for the adapter element to be formed by or integrated into the base body. Preferably, the at least one positive-locking connection is a screw connection. However, other positive-locking connections would also be conceivable. The use of a material-bonded connection, for example, an adhesive bond or a weld, would also be conceivable. Advantageously, the adapter element is designed as a strip-shaped element. Preferably, the strip-shaped element comprises a first section and a second section.The first and second sections advantageously enclose an angle α. The angle α is in a range between 30° and 120°, preferably in a range between 50° and 110°, more preferably in a range between 80° and 100°, and more preferably 90°. The first section advantageously extends along the longitudinal and transverse axes. Preferably, the second section extends along the longitudinal and vertical axes.

[0010] According to a further preferred embodiment, at least one detent opening is provided into which at least one detent element can engage. It is advantageous that the at least one detent opening is provided at one of the connection interfaces and the at least one detent element is provided at the other connection interface.

[0011] In one embodiment, the first connection interface preferably comprises a plurality of locking openings in the form of the adapter element. Furthermore, the second connection interface preferably comprises at least one locking element. It would also be conceivable for the first connection interface, preferably in the form of the adapter element, to comprise a plurality of locking elements and the second connection interface to comprise at least one locking opening. Providing a plurality of locking openings or locking elements on the first connection interface offers the advantage that an expansion module can be positioned at various locations along its longitudinal axis. Multiple expansion modules can also be placed side by side.

[0012] According to a further aspect of the invention, a first group of locking openings is provided on the first section of the strip-shaped element, and a second group of locking openings is provided on the second section of the strip-shaped element. The locking openings of each group are preferably identical in design. Preferably, the locking openings of the first group can be different from or identical to the locking openings of the second group. Preferably, one member of the first group of locking openings and one member of the second group of locking openings form a pair of locking openings. The two locking openings of a pair of locking openings can have a predetermined orientation relative to each other. It would be conceivable for both locking openings of a pair of locking openings to have the same position along the longitudinal direction (X) (for example, the same distance from one end of the strip-shaped element).It is also conceivable, however, that the two locking openings of a locking opening pair have a specific offset from each other along the longitudinal axis. In this case, the locking opening pairs assigned to the connection interface are identically designed.

[0013] In an advantageous embodiment, the second connection interface comprises at least a first group of locking elements and at least a second group of locking elements. Preferably, each group comprises at least one locking element.

[0014] Advantageously, one member of the first group of locking elements and one member of the second group of locking elements form a locking element pair. The two locking elements of a locking element pair can have a predefined orientation relative to each other. It is conceivable that both locking elements of a locking element pair have the same position along the longitudinal direction (X). However, it is also conceivable that the two locking elements of a locking element pair have a specific offset relative to each other along the longitudinal axis. The locking element pairs assigned to the connection interface are identically designed. Advantageously, a locking element pair is compatible with a locking opening pair. The locking elements of the respective group are preferably designed identically. Preferably, the locking elements of the first group can be designed differently or identically to the locking elements of the second group.

[0015] According to a further advantageous embodiment, the at least one locking element comprises a first pin-shaped section and a locking section arranged thereon. The pin-shaped section has an elongated extension, preferably along the lateral axis. The locking section preferably has an enlarged surface. The enlarged surface extends in a plane that is substantially perpendicular to the elongated extension of the pin-shaped section. A locking element could thus be mushroom-shaped. According to a further embodiment, the locking section has an elongated extension that forms an angle β with the elongated extension of the pin-shaped section. The angle β is preferably in a range between 50° and 100°, preferably substantially 90°. According to this embodiment, the locking element could be described as hook-shaped.

[0016] In a further advantageous embodiment, the locking openings have an insertion area and at least one locking area. Preferably, the insertion area is dimensioned such that the locking section of a locking element can pass through it. Preferably, one locking area of ​​the locking opening has a smaller opening compared to the insertion area, which can accommodate the first pin-shaped section of a locking element. In one embodiment, the locking opening has only one locking area. In a further embodiment, the locking opening has two locking areas opposite each other along the longitudinal axis. The entire locking opening would thus be described as being essentially T-shaped.

[0017] When arranging a connection interface at another connection interface, the at least one locking element is first positioned in the locking openings such that the locking section is guided through the insertion area. Preferably, the locking section is then located in a first position behind an opening plane of the insertion area. Subsequently, the at least one locking element is moved along the longitudinal axis to an end position in which the pin-shaped section of the locking element is located in the locking area of ​​the locking opening. The locking section of the locking element then rests against an inner wall of the adapter element due to the reduced opening area of ​​the locking area. This contact secures the second connection interface or the expansion module.In a design with two groups of detent openings or detent elements, the detent elements of at least one pair of detent elements are guided through the insertion areas of the provided detent openings to the first position. Subsequently, the detent elements are displaced along the longitudinal axis (X) so that both detent elements of a pair of detent elements enter their respective detent areas.

[0018] In a further preferred embodiment, a transition area with a constriction is provided between the insertion area of ​​the detent opening and the detent area of ​​the detent opening. The constriction can be a point or a circumferential protrusion. The constriction is dimensioned such that increased force is required to move the pin-shaped section into the detent area of ​​the detent opening. A slight elasticity of the constriction and / or the detent opening and / or the detent element is sufficient to move the detent element through the constriction. In the final position, the constriction secures the first pin-shaped section of the detent element in the detent area of ​​the detent opening. Thus, the constriction prevents the detent element from unintentionally slipping out of the detent section.

[0019] According to a further preferred aspect of the invention, the at least one expansion module is or comprises an active expansion module. Preferably, the active expansion module is selected from the group comprising: an input and / or output device, a joystick, a steering wheel, a push-button and / or switch element, a touchscreen, a display device, or combinations of the aforementioned elements. Of course, other similar active expansion modules are also conceivable. Thus, any input and / or output devices can be easily and mechanically arranged on the base body. It is advantageous that the base body includes connection options for the power supply and / or data lines for the respective active expansion module. Advantageously, the active expansion module can be arranged on the front of the base body.

[0020] According to a further advantageous embodiment, the at least one expansion module is or comprises a passive expansion module. Preferably, the passive expansion module is selected from the group comprising: a storage element, a mounting element (e.g., a cupholder), a hook element, a pocket, a net, an ashtray, an additional cushion, or combinations of the aforementioned elements. Of course, other similar passive expansion modules are also conceivable. Such passive expansion modules can be arranged on both the front and the rear of the base body.

[0021] In a further embodiment, an additional expansion module is arranged on the front and / or rear of the base body. Preferably, the additional expansion module is an active expansion module, a passive expansion module, or a combination of an active and a passive expansion module. The active expansion module can be selected from the group comprising: an input and / or output device, a joystick, a steering wheel, a touch and / or switch element, a touchscreen, a display device, or combinations of the aforementioned elements. Preferably, the passive expansion module is selected from the group comprising: a storage element, a mounting element, a hook element, a pocket, a net, an ashtray, additional padding, or combinations of the aforementioned elements. Of course, other similar active or passive expansion modules are also conceivable.

[0022] Advantageously, a third predefined connection interface is provided, which is arranged or formed on the front and / or rear of the base body. Preferably, the at least one further expansion module has a fourth predefined connection interface, which is compatible with the third connection interface. Preferably, at least one positive-locking connection is provided between the third connection interface and the fourth connection interface.

[0023] A positive-locking connection comprises an effect achieved through the geometric contact of two contact surfaces. The connection may exhibit play between the contact surfaces and allows one or more degrees of freedom of movement. A positive-locking connection may also include the use of a connecting element between two elements to be joined. Such a connecting element may be, for example, a screw, a pin, a rivet, or the like. Advantageously, the at least one positive-locking connection between the third and fourth connection interfaces is a detachable connection. This enables the interchangeability of the expansion modules. According to a further preferred embodiment, a first positive-locking connection in the form of a mate connection is provided between the third and fourth connection interfaces.Preferably, the fitting connection is as backlash-free as possible. Preferably, one of the connection interfaces includes a receptacle in which a connecting section of the other connection interfaces is received. The connecting section and the receptacle are thus essentially complementary to each other. Advantageously, the third connection interface includes the connecting section and the fourth connection interface includes the receptacle. However, it would also be conceivable for the fourth connection interface to include the connecting section and the third connection interface to include the receptacle.

[0024] According to a further preferred embodiment, the at least one expansion module and / or the at least one further expansion module is configured such that at least one additional expansion module can be attached to it. The at least one expansion module and / or the at least one further expansion module are or comprise a fifth connection interface. The fifth connection interface is thus an indirect interface. The additional expansion module can preferably be attached to the at least one expansion module or the at least one further expansion module by means of a force-fit connection. The fifth connection interface can, for example, represent at least one opening, at least one projection, or the like, in or on which clamping devices of the additional expansion module can engage.However, such an opening could also be an opening for a passive expansion module, such as a storage element or cupholder. Such an additional expansion module could, for example, be a holder for a smartphone or mobile phone.

[0025] The task is also accomplished by a vehicle seat with an armrest element. The vehicle seat can be equipped with all the features already described above in relation to the armrest element, either individually or in combination, and vice versa.

[0026] Further advantages, objectives, and features of the present invention are explained with reference to the accompanying figures. Similar components may have the same reference numerals in the different embodiments.

[0027] The figures show: Fig. 1 an exploded view of an armrest element according to one embodiment; Fig. 2 a vehicle seat with the armrest element; Fig. 3a an armrest element according to one embodiment; Fig. 3b an armrest element according to one embodiment; Fig. 3c an armrest element according to one embodiment; Fig. 3d an armrest element according to one embodiment; Fig. 4a-4e different views of an armrest element according to one embodiment; Fig. 5a-5e different views of an armrest element according to one embodiment; Fig. 6a-6e different views of an armrest element according to one embodiment; Fig. 7a-7e different views of an armrest element according to one embodiment; Fig. 8a-8e different views of an armrest element according to one embodiment; Fig. 9a-9e different views of an adapter element according to one embodiment; Fig. 10a-10c different views of an adapter element according to an embodiment with an extension module in one position; Fig. 11a-11c different views of the adapter element according to an embodiment with an extension module in a further position; Fig. 12a-12c different views of the adapter element according to an embodiment with an extension module in a further position; Fig. 13a-13c different views of the adapter element according to an embodiment with an extension module in a further position; Fig. 14a-14d different views of the adapter element according to a further embodiment with an extension module in one position; Fig. 15a-15d different views of the adapter element according to a further embodiment with an extension module in a further position; Fig. 16a-16d different views of the adapter element according to a further embodiment with an extension module in a further position; Fig. 17a-17d different views of the adapter element according to a further embodiment with an extension module in a further position; Fig. 18a-18d different views of the adapter element according to a further embodiment with an extension module in another position.

[0028] In the figures, identical components are to be understood by their corresponding reference symbols. For clarity, some components may not be labeled with a reference symbol in certain figures, but are identified elsewhere.

[0029] The Fig. 1, Fig. 2 to Fig. Figure 8e shows an armrest element 1 of a seat, in particular a vehicle seat 100, with a base body 2, wherein the armrest element 1 has at least one first predefined connection interface 3, to which at least one interchangeable extension module 4 can be fixed with a second predefined connection interface 5, wherein the first connection interface 3 and the second connection interface 5 are designed such that at least one snap-fit ​​connection between the first connection interface 3 and the second connection interface 5 is enabled. At least one snap-fit ​​connection between the first connection interface 3 and the second connection interface 5 is provided. A plurality of different extension modules 4 can be arranged on the armrest element 1 by means of such a predefined, preferably even standardized, connection interface.

[0030] The armrest element 1 extends along a longitudinal axis X, a lateral axis Y, and a vertical axis Z. The armrest element 1 can be arranged on a seat 100. This is in Fig. Figure 2 shows a fastening element 30, which is attached to the base body 2. A tilt adjustment device may be provided, by means of which the tilt of the armrest element 1 relative to the seat 100 can be adjusted. The tilt adjustment device is operated by a control element 31, in the form of a rotatably arranged cylindrical element. This control element 31 is arranged on a lower surface 2b of the base body 2. The base body 2 has a recess 33 for this purpose.

[0031] In an advantageous embodiment, the armrest element 1 comprises a support element 32, which is arranged on the base body 2. The base body 2 is arranged along the vertical axis Z below the support element 32. The support element 32 comprises, or is, a cushioning element. The support element 32 provides the occupant with a surface on which to rest their arm. An upper surface 2a of the base body 2 faces the support element 32. The lower surface 2b of the base body 2 faces the upper surface 2a. The base body 2 comprises a lower section from which side walls 35 extend along the vertical axis Z. The upper surface 2a of the base body 2 is open and is covered by the support element 32.

[0032] The basic body 2 comprises an outer longitudinal side 6 extending along a longitudinal axis X. The outer longitudinal side 6 is spaced along the transverse axis Y from an inner longitudinal side 6a and is substantially opposite it. The inner longitudinal side 6a faces an occupant. Furthermore, the basic body 2 comprises a front side 7 extending along the transverse axis Y and a rear side 8 extending along the transverse axis Y. The front side 7 is spaced from the rear side 8 along the longitudinal axis X and is substantially opposite it.

[0033] The first connection interface 3 is designed as an adapter element 9, which is arranged on the base body 2. The adapter element 9 is arranged on the base body 2 by means of at least one positive-locking connection, preferably by means of at least two positive-locking connections. For this purpose, the base body 2 has at least one, preferably two, and more preferably three bores 34 on a section of a side wall 35, by means of which an adapter element 9 can be attached. The at least one bore 34 can be designed as a blind bore and is provided with an internal thread into which a screw can be screwed. The adapter element 9 is designed as a strip-shaped element 10. The strip-shaped element 10 comprises a first section 10a and a second section 10b.The first section 10a and the second section 10b enclose an angle α, which is preferably in a range between 80° and 100°, more preferably at 90°. The strip-shaped element 10 can also be described as an angled strip element. This design allows the extension module 4 to be sufficiently secured in several degrees of freedom. The first section 10a extends along the longitudinal axis X and the lateral axis Y and is therefore essentially horizontally oriented. The second section 10b extends along the longitudinal axis X and the vertical axis Z and is therefore essentially vertically oriented. [Among other things, in the...] Fig. 13b, Fig. 3c, Fig. Figure 3d further shows that a transition section 10c is formed between the first section 10a and the second section 10b, which is rounded or chamfered. It is also evident that a hook element 10d is integrated into the strip-shaped element 10, intended for hanging various objects.

[0034] At least one detent opening 11 is provided, into which at least one detent element 12 engages. This at least one detent opening 11 is provided at one of the connection interfaces 3, 5, and the at least one detent element 12 is provided at the other connection interface 5, 3. The first connection interface 3, in the form of the adapter element 9, comprises a plurality of detent openings 11, which can be grouped into a first group 11a of detent openings 11 and a second group 11b of detent openings 11. The first group 11a of detent openings 11 is provided at the first section 10a of the strip-shaped element 10. These detent openings 11 extend to the transition area 10c of the strip-shaped element 10. The second group 11b of detent openings 11 is provided at the second section 10b of the strip-shaped element 10.Each member of the first group 11a of detent openings 11 and each member of the second group 11b of detent openings 11 constitutes a detent opening pair 11c. As can be seen from the figures, the detent openings 11 of a detent opening pair 11c have a predetermined orientation relative to each other, i.e., they are arranged at the same position along the longitudinal axis X. The second connection interface 5 comprises at least a first group 12a of detent elements 12 and at least a second group 12b of detent elements 12. Each member of the first group 12a of detent elements 12 and each member of the second group 12b of detent elements 12 form a detent element pair 12c and, analogous to the detent openings 11, have a predetermined orientation relative to each other. A detent element pair 12c is compatible with a detent opening pair 11c. The at least one detent element 12 has a first pin-shaped section 13 and a locking section 14 arranged thereon.The detent openings 11 have an insertion area 15 and at least one detent area 16. The insertion area 15 is dimensioned such that the locking section 14 of a detent element 12 can pass through it. Compared to the insertion area 15, the detent area 16 has a smaller opening, which can accommodate the first pin-shaped section 13 of a detent element 12. Between the insertion area 15 of the detent opening 11 and the detent area 16 of the detent opening 11, a transition area 17 with a constriction 17a is provided, which secures the first pin-shaped section 13 of a detent element 12 in the detent area 16 of the detent opening 11.

[0035] In the Fig. 10a, Fig. 10b, Fig. 10c to Fig. 13a, Fig. 13b, Fig. Figure 13c shows a first embodiment of the snap-fit ​​connection. The strip-shaped element 10 shown in these figures is also shown in the Fig. 1, Fig. 3b, Fig. 3D, Fig. 3c, Fig. 5a-5e, Fig. 6a-6e, Fig. 7a-7e, Fig. 8a-8e and Fig. 9a-9c are shown. Fig. 10a, Fig. 10b, Fig. Figure 10c shows an end position in which the extension module 4 is arranged on the adapter element 9. Fig. Figure 10b shows a side view and Fig. 10c a top view. The enlarged section E of the Fig. Figure 10c shows the attachment of the adapter element 9 to the base body 2 by means of the bore 34. Fig. Figure 10a shows a top view from below. The two sections A:A and F:F show the shape of the adapter element 9, one a section with a locking element 12 and the other a section without a locking element 12. In magnification C, the design of the locking element 12 is clearly visible. The pin-shaped section 13 is pin-like or cylindrical in shape. The locking section 14, which is disc-shaped, is located at the front end of the pin-shaped section 13. Apart from the length of the pin-shaped sections 13, the locking elements 12 of the first group 12a and the second group 12b are essentially identical. In magnification B, it is clearly visible that the locking section 14 rests against an inner wall 36 of the adapter element 9 and thus secures the extension module 4.

[0036] In this adapter element 9, the locking openings 11 of the first group 11a are designed differently from the locking openings 11 of the second group 11b. The locking openings 11 of the first group 11a comprise a substantially rectangular insertion area 15, whereas the locking openings 11 of the second group 11b have a substantially circular insertion area 15. The locking area 16 is designed as a circular segment in both groups 11a and 11b.

[0037] The transition area 17 between the resting area 16 and the introduction area 15 with the constriction 17a is clearly visible, for example, in magnification D. This Fig. 10a, Fig. 10b, Fig. 10c to Fig. 13a, Fig. 13b, Fig. The extension module 4 shown in Figure 13c is arranged on the adapter element 9 by means of four pairs of locking elements 12c, each of which engages or locks into four pairs of locking openings 11c. Fig. 11a-11c, Fig. 12a-12c and Fig. Sections 13a-13c illustrate the step-by-step process of accepting extension module 4. Fig. 11a-11c, Fig. 12a-12c and Fig. 13a-13c otherwise correspond to Fig. 10a-10c. A description of the similar elements and the different views is therefore omitted. In the Fig. In sections 11a-11c, the locking elements 12 in the locking openings 11 were moved from the locking area 16 via the transition area 17 into the insertion area 15. A greater force would have to be applied to overcome the constriction 17a. In the area formed by the Fig. In the state shown in Figures 12a-12c, the locking elements 12 of the second group 12b have already been removed from the locking openings 11 of the second group 11b. Due to the elongated dimensions of the insertion areas 15 of the locking openings 11 of the first group 11a, the locking elements 12 of the first group 12a are still located in the corresponding insertion areas 15. In the state shown by the Fig. In the state shown in 13a-13c, the locking elements 12 of the first group 12a were also removed from the locking openings 11 of the second group 11a. The extension module 4 is completely removed from the adapter element 9.

[0038] In the Fig. 14a, Fig. 14b, Fig. 14c, Fig. 14 days to Fig. 18a, Fig. 18b, Fig. 18c, Fig. Figure 18d shows another embodiment of the snap-fit ​​connection. In the Fig. 14a, Fig. 14b, Fig. 14c, Fig. Figure 14d shows an end position in which the extension module 4 is arranged on the adapter element 9. Fig. Figure 14b shows a side view and the Fig. 14d a view from the back 8. The Fig. 14a shows a top view from below and the Fig. Figure 14c shows a top view. Section A:A shows the shape of the adapter element 9 with a locking element 12. In the Fig. Figures 15a-15d show an alternative end position in which the locking elements 12 are located in the opposite locking sections 16. The description of these figures is otherwise analogous to the Fig. 14a - Fig. 14d. In contrast to the embodiment according to the Fig. 10a, Fig. 10b, Fig. 10c to Fig. 13a, Fig. 13b, Fig. In this embodiment, the detent openings 11 and the detent elements 12 are configured differently. Otherwise, the illustrated embodiments are analogous. The detent openings 11 of the first group 11a as well as of the second group 11b are essentially T-shaped. The detent openings 11 thus comprise an essentially rectangular insertion area 15, to which two detent areas 16 adjoin. The two detent areas 16 extend along the longitudinal axis X in opposite directions. Both detent areas 16 adjoin the insertion area 15 by means of a transition area 17, which includes a constriction 17a. This is clearly visible in the magnified view F. The detent elements 12 of the second group 12b are hook-shaped. They comprise a pin-shaped section 13, on which an elongated locking section 14 is arranged at an angle β.The locking elements 12 of the first group 12a comprise a pin-shaped section 13 and a locking section 14, which has essentially the same shape as the pin-shaped section 13. The extension module 4 shown is arranged on the adapter element 9 by means of two pairs of locking elements 12c, each of which engages in a pair of locking openings 11c. In the magnified view C, it is clearly visible that the locking section 14 rests against an inner wall 36 of the adapter element 9 and thus secures the extension module 4.

[0039] In the Fig. 16a-16d, Fig. 17a-17d and Fig. Sections 18a-18d show the step-by-step process of accepting extension module 4. Fig. 16a-16d, Fig. 17a-17d and Fig. 18a-18d otherwise correspond to Fig. 14a-14d or Fig. 15a-15d. A description of the similar elements and the different views is therefore omitted. In the Fig. In sections 16a-16d, the locking elements 12 were moved from the locking area 16, via the transition area 17, into the insertion area 15 within the locking openings 11. A greater force was required to overcome the constriction 17a. In the area formed by the Fig. In the state shown in 17a-17d, the locking elements 12 of the second group 12b have already been removed from the locking openings 11 of the second group 11b. Due to the more elongated dimensions of the insertion areas 15 of the locking openings 11 of the first group 11a, the locking elements 12 of the first group 12a are still located in the corresponding insertion areas 15. In the state shown by the Fig. In the state shown in 18a-18d, the locking elements 12 of the first group 12a were also removed from the locking openings 11 of the second group 11a. The extension module 4 is completely removed from the adapter element 9.

[0040] A further expansion module 26 can also be arranged on the front 7 and / or the rear 8 of the base body 2, wherein the further expansion module 26 is an active expansion module 26, a passive expansion module 26, or a combination of an active and a passive expansion module 26. For this purpose, a third predefined connection interface 27 is provided, which is arranged or formed on the front 7 and / or the rear 8 of the base body 2. The at least one further expansion module 26 has a fourth predefined connection interface 28, which is compatible with the third connection interface 27. At least one positive-locking connection is provided between the third connection interface 27 and the fourth connection interface 28.A first positive-locking connection in the form of a mate connection is provided between the third connection interface 27 and the second connection interface 28. The mate connection comprises a connection interface 27, 28 configured as a receptacle 37. In the illustrated embodiments, the fourth connection interface 28 is configured as a receptacle 37. Furthermore, the third connection interface 27 is configured as a connecting section 38. The connecting section 38 can be inserted into the receptacle 37 and is received by it. The first connection interface 27 and the second connection interface 28 are thus compatible. The third connection interface 27 is formed in one piece or integrally by the base body 2. Likewise, the fourth connection interface 28 is formed in one piece or integrally by the extension module 4.However, it is also conceivable that the first connection interface 27 and / or the fourth connection interface 28 is provided on an adapter element 9. The adapter element 9 could then be arranged on the base body 2 or the extension module 4.

[0041] At a third connection interface 27, located on the front face 7 of the base body 2, the connecting section 38 is essentially rectangular. Of course, other shapes such as a triangle or any other polygonal shape would also be conceivable. The connecting section 38 comprises two first side walls 35 spaced apart along the width axis Y, which extend along the length axis X and the height axis Z. A second side wall, extending essentially along the width axis Y and the height axis Z, connects the two first side walls. The two first side walls and the second side wall are arranged on a plate-like element, or formed integrally with it.In a fourth connection interface 28 compatible with this third connection interface 27, the receptacle 37 is also essentially rectangular and comprises two first side walls extending along the longitudinal axis X and the vertical axis Z. Furthermore, a second side wall integrated into the further extension module 26 is provided (not visible in the views), extending along the width axis Y and the vertical axis Z and connecting the two first side walls. The receptacle 37 also comprises at least the two first side walls and a second side wall. Preferably, the side walls are formed integrally or in one piece by the receptacle 37. A guide connection 39 is also provided between the third connection interface 27 and the second connection interface 28. This guide connection 39 comprises a pin element and a receptacle 37.At a third connection interface 27, which is located on the front 7 of the base body 2, the receptacle 37 is provided in the second side wall of the connection section 38. The receptacle 37 is located essentially centrally along the width axis Y. The pin element is provided on the second side wall of the fourth connection interface 28. When the additional extension module 26 is slid onto the base body 2, the connection section 38 enters the receptacle 37. The guide connection 39 positions the connection section 38 correctly relative to the receptacle 37. The guide connection 39 thus facilitates the assembly of a corresponding additional extension module 26.In an end position, the plate-like element of the connecting section 38 rests against the plate-like element of the receptacle 37, with the plate-like element of the connecting section 38 lying above the plate-like element of the receptacle 37 along the vertical axis Z. Furthermore, the first side walls of the connecting section 38 rest against the first side walls of the receptacle 37, with the first side walls of the connecting section 38 lying within (i.e., closer to an imaginary center line) the first side walls of the receptacle 37 along the horizontal axis Y. The first side walls of the connecting section 38 and the first side walls of the receptacle 37 each have aligned bores 34, which enable a positive-locking connection. These bores 34 are preferably threaded so that a screw can be screwed in.This positive-locking connection secures the additional extension module 26 to the base body 2. A third connection interface 27, located on the rear side 8 of the base body 2, is designed as a connection section 38. The connection section 38 comprises first side walls integrated into the base body 2. The compatible fourth connection interface 28 also comprises first side walls. These side walls extend forward along the longitudinal axis X. The receptacle 37 is essentially trapezoidal or parabolic in shape. Here, too, the first side walls of the receptacle 37 engage the first side walls of the connection section 38 when the additional extension module 26 is guided onto the base body 2.A guide connection 39 with a pin element and a receptacle 37 is also provided, wherein the pin element is arranged in the fourth connection interface 28 designed as a receptacle 37.

[0042] An alternative configuration of the third connection interface 27 and the fourth connection interface 28 is shown in the Fig. Figure 14c shows section D:D and magnification E. The third and fourth connection interfaces 27 and 28 each comprise interlocking hook elements. The additional extension module 26 can also be attached to the base body 2 by a positive-locking connection, for example, a screw connection.

[0043] The at least one expansion module 4 or the at least one further expansion module 26 can be an active expansion module 4, 26, a passive expansion module 4, 26, or a combination of an active and a passive expansion module 4, 26. An active expansion module 4, 26 can be an input and / or output device 18, a joystick 19, a steering wheel, a tactile and / or switching element 20, a touchscreen 21, a display device 22, or a combination of the aforementioned elements. A passive expansion module 4, 26 can be a storage element 23, a mounting element 24, for example, a cupholder, a hook element 25, a pocket, a net, an ashtray, an additional cushion, or combinations of the aforementioned elements. Fig. Figure 1 shows some of these active and passive expansion modules 4, 26.

[0044] The at least one expansion module 4 and / or the at least one further expansion module 26 can be designed such that at least one additional expansion module 40 can be attached to it. For this purpose, openings and / or projections can be provided, which, for example, enable a force-fit connection, such as a clamping connection, with an additional expansion module 40. The at least one expansion module 4 and / or the at least one further expansion module 26 are therefore, or include, a fifth connection interface 42. Thus, many common expansion modules 4 can be indirectly attached to the base body 2 by means of a force-fit connection. Fig. Figure 3D shows, for example, an additional extension module 40 in the form of a holder for a smartphone. This holder is arranged in a further extension module 26 in the form of a mounting element 24 by means of a clamping connection against the inner wall of the mounting element 24. Fig. Figure 1 shows an extension module 4, which is designed as an adapter module 41. The adapter module 41 comprises an end face with various bores 34, which are equipped with an internal thread. Various other elements can be attached to the adapter module 41 by means of these bores 34.

[0045] In the Fig. 2a to Fig. Figure 8e shows different combinations of extension modules 4 and further extension modules 24 in different views.

[0046] Fig. Figure 3a shows an armrest element 1 with a third connection interface 27 in a perspective view. In the Fig. 4a to Fig. Figure 4e shows further views of such an armrest element 1. Fig. 4a a side view, Fig. 4b a view from below, Fig. 4c a view from above, Fig. 4D a view from the front and Fig. 4e a view from the rear. In Fig. 3b is an armrest element 1 with a first connection interface 3 comprising an adapter element 9 shown in a perspective view.

[0047] Fig. Figure 3c is a perspective view of an armrest element 1 with a further extension module 26 in the form of a cupholder or mounting element 24, which is arranged on the front 7 of the base body 2 by means of third and fourth connection interfaces 27, 28. On the rear 8 of the base body 2, a further extension module 26 in the form of a hook element 25 is arranged by means of third and fourth connection interfaces 27, 28. In the Fig. 5a to Fig. Figure 5e shows further views of such an armrest element 1. It is Fig. 5a a side view, Fig. 5b a view from below, Fig. 5c a view from above, Fig. 5d a view from the front and Fig. 5e a view from the rear.

[0048] In the Fig. 6a to Fig. Figure 6e shows views of an armrest element 1 on which two extension modules 4 in the form of storage elements 23 are arranged. Each of the two extension modules 4 has a second connection interface 5, which is connected to the first connection interface 3 with an adapter element 9. Further extension modules 26 are also arranged on the front 7 and the back 8. For this purpose, the third 27 and fourth connection interfaces 28 are connected. A hook element 25 is arranged on the back 8 and a cupholder on the front 7. Fig. 6a a side view, Fig. 6b a view from below, Fig. 6c a view from above, Fig. 6d a view from the front and Fig. 6e a view from the rear. In the Fig. 7a to Fig. Figure 7e shows views of an armrest element 1, which corresponds to the one described in the Fig. 6a to Fig. The armrest element 1 shown in section 6e essentially corresponds to this. However, no further extension modules 26 are provided. Fig. 7a a side view, Fig. 7b a view from below, Fig. 7c a view from above, Fig. 7d a view from the front and Fig. 7e a view from the rear. In the Fig. 8a to Fig. Figure 8e shows views of an armrest element 1, which corresponds to the one described in the Fig. 6a to Fig. The armrest element 1 shown in Figure 6e essentially corresponds to the armrest element 1 shown. However, instead of two extension modules 4 in the form of storage elements 23, one extension module 4 in the form of an elongated storage element 23 is provided. Fig. 8a a side view, Fig. 8b a view from below, Fig. 8c a view from above, Fig. 8d a view from the front and Fig. 8e a view from the rear. In the Fig. 9a to Fig. Figure 9e shows only the two expansion modules 4 in the form of storage elements 23 and the adapter element 9. Fig. 9a a side view, Fig. 9b a view from below, Fig. 9c a view from above, Fig. 9d a view from the front and Fig. 9e a view from the rear.

[0049] All features disclosed in the application documents are claimed to be essential to the invention, provided that they are novel individually or in combination compared to the prior art. Reference symbol list 1 armrest element 2 basic shapes 2a Top side of the base body 2b Underside of the base body 3 first connection interface 4 Expansion module 5 second connection interface 6 outer long side 6a inner longitudinal side 7 Front 8 Back 9 Adapter element 10 strip-shaped element 10a first section of the strip-shaped element 10b second section of the strip-shaped element 10c Transition section of the strip-shaped element 10d hook element 11 Rest opening 11a first group of rest openings 11b second group of rest openings 11c Locking opening pair 12 locking elements 12a first group of locking elements 12b second group of grid elements 12c Raster element pair 13 first cone-shaped section 14 Security section 15 Introduction area of ​​the latch opening 16 Resting area of ​​the resting opening 17 Transition area of ​​the rest opening 17a Narrowing 18 Input and / or output device 19 Joystick 20 Pushbutton and / or switching element 21" Touchscreen 22 Display device 23 storage element 24 Mounting element 25 hook elements 26 additional expansion modules 27 third connection interface 28 fourth connection interface 29 additional expansion module 30 Fastening element 31 Control element 32 support element 33 Recess on the base body 34 bore 35 side wall 36 inner wall of the adapter element 37th entry 38 Connecting section 39 Lead connection 40 additional expansion module 41 Adapter module 42 fifth connection interface 100 seats X Longitudinal axis Y-axis latitude Z-axis height axis

Claims

[1] Armrest element (1) of a seat, in particular a vehicle seat (100), comprising a base body (2), characterized by , that the armrest element (1) has at least a first predefined connection interface (3) to which at least one interchangeable extension module (4) can be fixed with a second predefined connection interface (5), wherein the first connection interface (3) and the second connection interface (5) are designed in such a way that at least one snap-fit ​​connection between the first connection interface (3) and the second connection interface (5) is enabled. [2] Armrest element (1) according to claim 1, characterized by, that the base body (2) extends along a longitudinal axis (X), a width axis (Y) and a height axis (Z), wherein the base body (2) comprises an outer longitudinal side (6) extending along the longitudinal axis (X), a front side (7) extending along the width axis (Y) and a rear side (8) extending along the width axis (Y), wherein a first connection interface (3) is arranged on the longitudinal side (6) of the base body (2). [3] Armrest element (1) according to claim 2, characterized by, that the first connection interface (3) is designed as an adapter element (9) which is arranged on the base body (2), wherein the adapter element (9) is arranged on the base body (2) by means of at least one positive-locking connection, wherein the adapter element (9) is designed as a strip-shaped element (10), wherein the strip-shaped element (10) comprises a first section (10a) and a second section (10b), wherein the first section (10a) and the second section (10b) enclose an angle α, wherein the first section (10a) extends along the longitudinal axis (X) and the width axis (Y), wherein the second section (10b) extends along the longitudinal axis (X) and the height axis (Z). [4] Armrest element (1) according to one of claims 1-3, characterized by, that at least one locking opening (11) is provided into which at least one locking element (12) engages, wherein the at least one locking opening (11) is provided at one of the connection interfaces (3, 5) and the at least one locking element (12) is provided at the further connection interface (5, 3). [5] Armrest element (1) according to claim 3 or 4, characterized by , that the first connection interface (3) comprises a plurality of locking openings (11), wherein a first group (11a) of locking openings (11) is provided on the first section (10a) of the strip-shaped element (10) and a second group (11b) of locking openings (11) is provided on the second section (10b) of the strip-shaped element (10), wherein one member of the first group (11a) of locking openings (11) and one member of the second group (11b) of locking openings (11) form a locking opening pair (11c) and have a predetermined orientation towards each other [6] Armrest element (1) according to claim 5 characterized by , that the second connection interface (5) comprises at least a first group (12a) of locking elements (12) and at least a second group (12b) of locking elements (12), wherein one member of the first group (12a) of locking elements (12) and one member of the second group (12b) of locking elements (12) form a locking element pair (12c) and have a predetermined orientation towards each other, wherein a locking element pair (12c) is compatible with a locking opening pair (11c). [7] Armrest element (1) according to one of claims 4-6, characterized by , that the at least one locking element (12) has a first pin-shaped section (13) and a locking section (14) arranged thereon. [8] Armrest element (1) according to claim 7, characterized by, that the locking openings (11) have an insertion area (15) and at least one locking area (16), wherein the insertion area (15) is dimensioned such that the locking section (14) of a locking element (12) can pass through it, wherein the locking area (16) has a smaller opening compared to the insertion area (15), which can accommodate the first pin-shaped section (13) of a locking element (12). [9] Armrest element (1) according to one of claims 7-8, characterized by , that between the insertion area (15) of the detent opening (11) and the detent area (16) of the detent opening (11) a transition area (17) with a constriction (17a) is provided which secures the first pin-shaped section (13) of a detent element (12) in the detent area (16) of the detent opening (11). [10] Armrest element (1) according to any one of the preceding claims, characterized by, that at least one extension module (4) is or comprises an active extension module (4), wherein the active extension module (4) is selected from the group comprising: an input and / or output device (18), a joystick (19), a steering wheel, a touch and / or switch element (20), a touchscreen (21), a display device (22) or combinations of the aforementioned elements. [11] Armrest element (1) according to any one of the preceding claims 2 to 10 characterized by , that at least one extension module (4) is or comprises a passive extension module (4), wherein the passive extension module (4) is selected from the group comprising: a storage element (23), a support element (24), a hook element (25), a pocket, a net, an ashtray, an additional cushion or combinations of the aforementioned elements. [12] Armrest element (1) according to one of claims 2 to 11 characterized by, that a further extension module (26) is arranged on the front (7) and / or on the rear (8) of the base body (2), wherein the further extension module (26) is an active extension module (26), a passive extension module (26) or a combination of an active and a passive extension module (26). [13] Armrest element (1) according to claim 12 characterized by , that a third predefined connection interface (27) is provided, which is arranged or formed on the front (7) and / or the rear (8) of the base body (2), wherein the at least one further extension module (26) has a fourth predefined connection interface (28) which is compatible with the third connection interface (27) wherein at least one positive locking connection is provided between the third connection interface (27) and the fourth connection interface (28). [14] Armrest element (1) according to any one of the preceding claims, characterized by , that at least one extension module (4) and / or at least one further extension module (26) is designed in such a way that at least one additional extension module (29) can be arranged on it. [15] Vehicle seat (100) with an armrest element (1) according to one of the preceding claims.

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