Seat bracket for a passenger seat and seat attachment with such a seat bracket

Abstract

Seat mounting (2) for a passenger seat, with a foot section (8, 9, 10) on which downwardly projecting clamping elements (5) for engagement in guide grooves (4) of a floor rail (1), axially adjustable locking elements (7) for positive engagement in openings (6) of the floor rail (1) and an adjustment mechanism for displacing the clamping elements (5) and the locking elements (7) in opposite directions are arranged, characterized in that the adjustment mechanism includes at least one translationally displaceable tab- or rod-shaped push element (17) and corresponding control elements (12, 14, 20, 21) for converting the translational displacement of the at least one push element (17) into an opposing upward and downward movement of the clamping elements (5) and the locking elements (7).

Description

[0001] The invention relates to a seat mounting for a passenger seat according to the preamble of claim 1. The invention also relates to a seat attachment with such a seat mounting.

[0002] A generic seat mounting is known from DE 10 2009 020 874 A1. This mounting comprises a chair base formed from horizontal beams and inclined supports, on which several downward-projecting guide pins and axially displaceable clamping pins are arranged for engagement with a retaining rail. To lock the chair base relative to the retaining rail and to release it for displacement, the guide pins and the locking pins must be moved axially in opposite directions. This is achieved by a lever mechanism with a lever arm pivotable about a fixed pivot point, which actuates the axially displaceable locking pin and the clamping pin via pivot axes. To achieve the opposing movement of the locking pins and clamping pins, the pivot axis for the locking pin is located in front of the pivot point and the pivot axis for the clamping pin is located behind the pivot point of the lever arm.

[0003] The object of the invention is to create an adjustable seat bracket of the type mentioned above and a seat attachment with such a seat bracket that allows alternative adjustment and yet ensures an accurate and secure hold.

[0004] This problem is solved by an adjustable seat mount with the features of claim 1 and by a seat attachment with the features of claim 11. Advantageous further developments and beneficial embodiments of the invention are the subject of the dependent claims.

[0005] In the seat bracket according to the invention, downward-projecting clamping elements for engaging guide grooves in a base rail, axially adjustable locking elements for positive engagement in openings of the base rail, and an adjustment mechanism for moving the clamping elements and the locking elements in opposite directions are arranged on a foot section. The adjustment mechanism for moving the clamping elements and the locking elements in opposite directions comprises at least one translationally displaceable tab- or rod-shaped push element and corresponding control elements for converting the translational movement of the at least one push element into an opposing upward and downward movement of the clamping elements and the locking elements. In this way, a particularly stable and reliable adjustment is achieved.

[0006] In a particularly precise and robust design, the adjustment mechanism can include two tab- or rod-shaped sliding elements that are guided longitudinally on the inside or outside of two parallel support profiles of the foot section.

[0007] In a further suitable embodiment, the tab- or rod-shaped push elements can be guided in a translationally displaceable manner in the longitudinal direction on the inner or outer sides of the two support profiles via horizontal elongated holes in the push elements and guide pins on the support profiles engaging in the elongated holes.

[0008] The corresponding control elements can preferably be designed as oppositely inclined elongated slots on the sliding element(s) and guide rods or guide pins guided within the elongated slots and connected to the clamping elements and the locking elements. This allows for a precise and reliable conversion of the sliding movement of the sliding element into the opposing upward and downward movement of the clamping elements and the locking elements.

[0009] The tab- or rod-shaped sliding elements are preferably displaceable via a lever mechanism. In a preferred embodiment, the lever mechanism can include two side parts pivotally connected to the sliding elements, which can be pivoted between a lowered unlocked position and an raised locked position. The two side parts can be connected to each other by an operating handle. In the case of a single sliding element, the lever mechanism can also be designed differently.

[0010] The two side parts of the lever mechanism can be pivotally connected to the push elements at their lower ends via a lower pivot pin. Furthermore, the side parts can be pivotally connected to a connecting tab, which pivots about a stationary axis of rotation, via an upper pivot pin located in each side part above the lower pivot pin. By pivoting the two side parts, the two push elements can thus be moved between an unlocked position and a locked position.

[0011] The invention also relates to a seat mounting with a floor rail and a seat bracket adjustable in the floor rail, which includes the aforementioned features.

[0012] The base rail expediently has two parallel guide webs, each with a T-shaped guide groove for the engagement of the clamping elements and openings for the engagement of the locking elements of the seat bracket.

[0013] Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawing. The drawing shows: Fig. 1. A seat mounting with a floor rail and an adjustable and unlocked seat bracket in one perspective; Fig. 2 a cross-section of the in Fig. 1 seat mounting shown in the area of ​​the clamping elements of the seat bracket in a locked state; Fig. 3 the adjustable seat bracket from Fig. 1 in an unlocked position; Fig. 4 the lower part of the seat bracket of Fig. 3 in a longitudinal section; Fig. 5 the lower part of the seat bracket of Fig. 3 in a side view; Fig. 6 the adjustable seat bracket of Fig. 1 in a locked position; Fig. 7 the lower part of the seat bracket of Fig. 6 in a longitudinal section and Fig. 8 the lower part of the seat bracket of Fig. 6 in a side view.

[0014] In the Fig. 1 and Fig. Figure 2 shows a seat mounting designed for the adjustable mounting of passenger seats in vehicles, comprising a floor rail 1 and a seat mount 2 adjustable within the floor rail 1, as shown in a perspective view and a cross-section. The floor rail 1, which is embedded in or mounted on the floor of a vehicle, has two parallel guide webs 3, each with a T-shaped guide groove 4 for engagement in Fig. The clamping elements 5 of the seat bracket 2 are shown. In the two guide webs 3 of the base rail 1, which here is designed as an aluminum profile rail, there are spaced-apart openings 6 for inserting the clamping elements 5 and for engaging two clamping elements in the Fig. 6 and Fig. Seven recognizable and subsequently explained in more detail bolt-shaped locking elements 7 are provided for the seat bracket 2. The clamping elements 5, which project downwards from the underside of the seat bracket 2, can be inserted into the guide groove 4 of the two guide webs 3 via the openings 6. The openings 6 also serve as locking openings for the positive engagement of the bolt-shaped locking elements 7.

[0015] As especially from the Fig. 1 and Fig. As shown in Figure 2, the seat bracket 2 has two lower horizontal support profiles 8 that are parallel to each other and serve to rest on the two guide rails 3 of the floor rail 1. A support structure, here a sheet metal construction composed of vertical side parts 9 and horizontal connecting parts 10, is screwed onto the two support profiles 8 to secure a passenger seat. The two support profiles 8 and the support structure, composed of the vertical side parts 9 and the horizontal connecting parts 10, form a base on which a passenger seat is mounted. Depending on requirements and design, the base or the support structure can also be designed differently.

[0016] In Fig. Figure 2 shows that in each of the two support profiles 8 of the base, which are designed as hollow profile tubes, a clamping bolt 11 is arranged transversely to the longitudinal direction of the support profile 8, allowing it to slide downwards and upwards. The clamping element 5, designed here as a mushroom head, is attached to the underside of the two clamping bolts 11, which are slidably guided within the support profiles 8, by means of a screw connection. When the clamping bolts 11 are pulled upwards, the clamping element 5, designed here as a mushroom head, comes into contact with the underside of inwardly projecting webs on the guide grooves 4 of the base rail 1 with its enlarged head, and pulls the support profiles 8 of the base against the base rail 1. This achieves a play-free mounting of the seat bracket 2 within the base rail 1. The two opposing clamping bolts 11 are connected to each other by a first guide rod 12 extending transversely to the longitudinal direction of the support profile 8.The first guide rod 12 is slidably guided in the two support profiles 8 via opposing first vertical elongated holes 13. The two clamping bolts 11, with their attached clamping elements 5, are movable between a downward-pressed, released position and a raised, clamped position via the first guide rod 12, which is slidably guided in the first vertical elongated holes 13 in the two support profiles 8. The clamping elements 5, designed as mushroom heads, are configured such that in the raised clamping position they come to rest against the upper surface of the T-shaped guide groove 4, thereby pulling the support profiles 8 against the base plate 1. In the downward-pressed position, the clamping elements 5 are freely movable within the guide groove 4, allowing the seat bracket 2 to be moved relative to the base rail 1.

[0017] The two horizontal support profiles 8 also contain two opposing bolt-shaped locking elements 7 for engaging the openings 6 of the base rail 1. The two locking elements 7 are connected by a Fig. The second guide rod 14, shown in Figure 1 and extending transversely to the longitudinal direction of the support profile 8, is connected to each other. The second guide rod 14 is slidably guided in the two support profiles 8 via opposing second vertical elongated holes 15. The two bolt-shaped locking elements 7 can be moved between a lower locking position, engaging in the openings 6, and a raised release position via the second guide rod 14, which is slidably guided in the second vertical elongated holes 15 in the two support profiles 8.

[0018] To lock the seat bracket 2 relative to the base plate 1 or to release it for movement, the clamping elements 5 and the locking elements 7 must be moved in opposite directions by opposing movements of the two guide rods 12 and 14. This is achieved via an adjustment mechanism comprising two tab- or rod-shaped push elements 17, which are translationally displaceable via a lever mechanism 16, and corresponding control elements for converting the translational movement of the push elements 17 into an opposing upward and downward movement of the clamping elements and the locking elements. To release the seat bracket 2 relative to the base plate 1 for movement, the two clamping elements 5 are pressed downwards and the two bolt-shaped locking elements 7 are pulled upwards, as shown in the Fig. 3, Fig. 4 to Fig. 5 is shown. To lock the seat bracket 2 to the base plate 1, the two clamping elements 5 are pulled upwards and the two bolt-shaped locking elements 7 are pressed downwards to engage in the openings 6, as shown in the Fig. 6, Fig. 7 to Fig. 8 is shown.

[0019] The two tab- or rod-shaped shear elements 17 are guided on the inner sides of the two support profiles 8 via horizontal elongated holes 18 in the shear elements 17 and guide pins 19 engaging in the elongated holes 18 on the support profiles 8, allowing translational movement in their longitudinal direction, and are located between a in the Fig. 3, Fig. 4 to Fig. 5 unlocking positions shown and one in the Fig. 6, Fig. 7 to Fig. The locking position shown in Figure 8 is movable. The corresponding control elements for converting the translational movement of the push elements 17 into an opposing upward and downward movement of the clamping elements 5 and the locking elements 7 are, in the illustrated embodiment, designed as slotted pin guides with oppositely inclined first and second oblique slots 20 and 21 on the push elements 17 and the guide rods 12 and 14, which are guided within the slots 20 and 21 and connected to the clamping elements 5 and the locking elements 7. Due to the opposing inclination of the two oblique slots 20 and 21, the guide rods 12 and 14 and the clamping elements 5 and locking elements 7 connected thereto are moved in opposite directions by a displacement of the push elements 17.

[0020] As from Fig. 1 and the Fig. 3 and Fig. As can be seen in Figure 5, the lever mechanism 16 for the translational displacement of the two thrust elements 17 comprises two mutually parallel side parts 22, which are connected via an actuating handle 23 arranged between the side parts 22 to a Fig. 3, Fig. 4 to Fig. 5 shown in the folded-down unlocked position and one in the Fig. 6, Fig. 7 to Fig. The 8 shown in the raised locking position can be pivoted. Fig. 4 and Fig. 5 or 7 and Fig. 8 shows that the two lower ends of the side parts 22 of the lever mechanism are connected to the push elements 17 at their respective points via a lower pivot bolt 24. Fig. 3 left ends are connected by a hinge.

[0021] The two side parts 22 of the lever mechanism are pivotally connected to the seat bracket 2 by means of connecting tabs 25, which are pivotally connected at one end to the respective side part 22 via an upper pivot bolt 26 arranged above the lower pivot bolts 24 in the side parts 22 and are pivotally mounted at their other ends about a stationary pivot axis 27 fixed in the two side parts 9.

[0022] By pivoting the pivot lever formed by the two side parts 22 and the operating handle 23 arranged between them, the two sliding elements 17 can be moved between the Fig. 3, Fig. 4 to Fig. 5 shown unlocking position and the one in the Fig. 6, Fig. 7 to Fig. The locking position shown in Figure 8 is moved. A tension spring 28 engages the lower pivot pins 24, which assists the movement of the sliding elements 17 into the unlocked position. Sliding guides 29 for guiding the seat bracket 2 within the guide grooves 4 of the base rail 1 are arranged on the underside of the horizontal support profiles 8.

[0023] If the two side parts 22 are moved into a position via the operating handle 23 arranged between them, Fig. 3, Fig. 4 to Fig. When the lowered unlocked position shown in Figure 5 is moved, the sliding elements 17 are moved away from the operating handle 23 to the right into the unlocked position, thereby pushing the clamping elements 5 downwards via the guide rod 12 and the second elongated holes 21 and pulling the locking elements 7 upwards via the guide rod 14 and the first elongated holes 20. The seat bracket 2 can then be moved relative to the floor rail 1.

[0024] If, on the other hand, the two side parts 22 are moved into a position via the operating handle 23 arranged between them, Fig. 6, Fig. 7 to Fig.When the locking mechanism is moved to the upright position shown in Figure 8, the sliding elements 17 are moved to the left into the locking position, thereby pulling the clamping elements 5 upwards over the guide rod 12 and the second elongated holes 21, and pushing the locking elements 7 upwards over the guide rod 14 and the first elongated holes 20. This allows the seat bracket 2 to be locked against the floor rail 1. Reference symbol list 1 floor rail 2 seat brackets 3 Guide bridge 4 guide grooves 5 clamping element 6 Opening 7 Locking element 8 Support profile 9 Side panel 10 Connecting part 11 clamping bolts 12 First guide rod 13 First vertical slot 14 Second guide rod 15 Second vertical slot 16 Lever mechanism 17 Shear element 18 Horizontal slot 19 guide pins 20 First slanted slot 21 Second slanted slot 22 Side panel 23 Operating handle 24 Lower hinge pin 25 Connecting tab 26 Upper hinge pin 27 axis of rotation 28 Tension spring 29 Sliding guide QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2009 020 874 A1

[0002]

Claims

[1] Seat mounting (2) for a passenger seat, with a foot section (8, 9, 10) on which downwardly projecting clamping elements (5) for engagement in guide grooves (4) of a floor rail (1), axially adjustable locking elements (7) for positive engagement in openings (6) of the floor rail (1) and an adjustment mechanism for displacement of the clamping elements (5) and the locking elements (7) in opposite directions are arranged, characterized by , that the adjustment mechanism includes at least one translationally displaceable tab- or rod-shaped push element (17) and corresponding control elements (12, 14, 20, 21) for converting the translational displacement of the at least one push element (17) into an opposing upward and downward movement of the clamping elements (5) and the locking elements (7). [2] Seat mounting (2) according to claim 1, characterized by, that the adjustment mechanism includes two tab- or rod-shaped push elements (17) which are guided slidably in the longitudinal direction on the inner or outer sides of two parallel support profiles (8) of the foot part (8, 9, 10). [3] Seat bracket (2) according to claim 2, characterized by , that the tab- or rod-shaped shear elements (17) on the inner or outer sides of the two support profiles (8) are guided in a translationally displaceable manner in their longitudinal direction via horizontal elongated holes (18) in the shear elements (17) and guide pins (19) on the support profiles (8) engaging in the elongated holes (18). [4] Seat mounting (2) according to any one of claims 1 to 3, characterized by, that the corresponding control elements (12, 14, 20, 21) are designed as oppositely inclined elongated holes (20, 21) on the thrust element (17) and guide rods (12, 14) or guide pins are guided within the elongated holes (20, 21) and are connected to the clamping elements (5) and the locking elements (7). [5] Seat mounting (2) according to any one of claims 2 to 4, characterized by , that the tab- or rod-shaped push elements (17) can be moved via a lever mechanism (16). [6] Seat mounting (2) according to claim 5, characterized by , that the lever mechanism (16) includes two side parts (22) which are pivotably connected to the push elements (17) and which can pivot between a lowered unlocking position and a raised locking position. [7] Seat mounting (2) according to claim 6, characterized by, that the two side parts (22) of the lever mechanism (16) are articulated at their lower ends by means of a lower pivot bolt (24) to the thrust elements (17). [8] Seat mounting (2) according to claim 7, characterized by , that a tension spring (28) acts on the lower pivot bolt (24). [9] Seat mounting (2) according to claim 7 or 8, characterized by , that the two side parts (22) of the lever mechanism (16) are articulated via an upper pivot bolt (26) arranged in the side parts (22) above the lower pivot bolts (24) to a connecting tab (25) which can be pivoted about a stationary axis of rotation (27). [10] Seat mounting (2) according to any one of claims 6 to 9, characterized by , that the two side parts (22) are connected to each other by an operating handle (23). [11] Seat mounting with a floor rail (1) and a seat support (2) adjustable in the floor rail (1), characterized by , that the seat mount (2) is designed according to one of claims 1 to 10. [12] Seat attachment according to claim 11, characterized by , that the bottom rail (1) contains two mutually parallel guide webs (3) each with a T-shaped guide groove (4) for engagement of the clamping elements (5) and openings (6) for engagement of the locking elements (7) of the seat support (2).

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