DE19503660C2 - Seat linkage for swiveling passenger seats with adjustable backrest in passenger transport vehicles, in particular for rail vehicles - Google Patents

Description

The invention relates to a seat linkage for swivel bare passenger seats with adjustable backrests in person size promotional vehicles, in particular for rail vehicles, according to the preamble of claim 1.

There are mostly seat guides for vehicle seats known rail-bound, all-terrain vehicles, those in uneven terrain and especially on mountainous slopes Vibrations and shocks, especially horizontal transverse forces dampen, reduce or almost completely compensate. In the DE 70 35 544 U1 describes such a seat guide. Of the The main disadvantage of such a seat guide is in that the driver's seat presupposes by design, that a vertical fastener attached in the vehicle compartment is necessary for the pendulum-shaped suspension. This mounting bracket is firmly ver with the vehicle floor bound and requires independent space and is therefore if only because of its additional space requirement for the sub bringing several passenger seats is not very suitable. Another Deficiency is that with such a driving seat Backrest is not adjustable. An adjustability of the However, the backrest is used for passenger seats in passenger transport Vehicles, especially for long-term driving, for comfort target increase. Another technical solution for one Seat guidance for driving seats is described in DE 77 31 339 U1 ben. In this proposal, a vehicle seat with a shown tilt-adjustable seat plate, in which the Seat plate on one connected to the vehicle chassis Console in a swivel axis pointing in the direction of travel pivoted and in at least one defined Swivel position can be locked mechanically. With this seat leadership is explicitly based on a horizontal compensation of the  Seat plate for transverse swings occurring in normal traffic and it is mainly the purpose of technology solution, the locking of the driving seat in certain To reach pivot points. This is done by hand actuating mechanical device that also achieves additional space and expenses required. This driving Tool seat design serves only a specific fixed Adjustment of the seat while driving, mainly with a Trak gate, across the mountain slope or in a furrow. Both solutions The underlying problem and task is horizontal Lateral forces and vertical impact forces on the vehicle when driving a vehicle in an inclined position act to reduce and balance. The disadvantages of this Seat designs consist in that these seats are not suitable net, the centrifugal and transverse acting on the driver forces when driving larger bends at high speed balance evenly and continuously. These seats also have the disadvantage that they are used only as a vehicle driver seats are trained and therefore as seats in Fahrga dream of passenger vehicles, such as are not suitable in buses or rail vehicles. Both seat constructions serve the purpose, mainly for with low speed land vehicles where greater vertical and horizontal vibrations and inclinations occur that affect the vehicle due to bumps, balance.

The object of the invention is a structurally simple and space-saving seat linkage for swiveling passenger seats with adjustable backrest in passenger vehicles of the type mentioned above, which is suitable to create the centrifugal and other transverse forces acting on the passenger, that when driving quickly through arches at high speed occur, to reduce, to almost automatically compensate dampen transverse vibrations and travel comfort to increase significantly.  

The object is achieved by the features of the patent claim 1 solved. Under the seat plate of the passenger seat is one of at least one in a row in the direction of travel arranged seat linkage designed as a four-link chain attached, which is connected to the vehicle floor, wherein the fictitious pivot point of the passenger seat almost on the vehicle's longitudinal axis, above the center of gravity det and the passenger seat when driving through arches with high Velocity due to the centrifugal force to bo accurate in one, by an adjustment device with damping area can be swung out on both sides is. Further refinements are in claims 2 and 3 described. For passenger seats arranged side by side are elastic spacers are attached between the seat plates, where at least one adjustable elastic position member is provided. The actuator is advantageous as a damper tion device trained. It is conceivable and in the sense of Invention, the seat plate across a transverse to the longitudinal vehicle curved and guided roller or plain bearings with one Radius of the curvature, which is approximately the distance between the seat plate and the fictitious one Ven corresponds to center of gravity D to rest on. The invent Damping according to the invention can beibe for this further training will hold. Known technical solutions for control and the drive of an active inclination technology without further in the proposed solution according to the invention be applied.

The advantages of these seat linkages according to the invention for pivotable passenger seats consist in that be with this written seat tilt technology by the simple element build a significantly lower construction and production opposed to that in rail vehicle traffic for these purposes usual and predominantly used vehicle Nei technology is needed. When tilting the vehicle with technically very complex passive or active systems  the entire vehicle when passing arches around its Vehicle longitudinal axis inclined towards the inside of the curve. Another before Part of the seat tilting technique described is that this equipped with the seat linkage according to the invention Passenger seat can also be retrofitted with little effort Vehicles can be installed. It can already be used ne, conventional vehicles with the seat tilt technology be equipped.

An embodiment of the invention is based on the drawing gene are explained in more detail. The drawings show in:

Fig. 1 is a front view of the Sitzanlenkung passenger seat for a driving,

Fig. 2 shows the side view of the Sitzanlenkung with two Vierge steering chain for a passenger seat,

Fig. 3 is a side view of the Sitzanlenkung with a Vierge steering chain for a passenger seat,

Fig. 4 is the front view of two parallel passenger seats with elastic spacers.

According to FIG. 1, the passenger seat consists of a seat plate 1 and the bearing cones attached beneath the seat plate I soles 2 ; 2 'with bearing 3 ; 3 ', in which coupling rods 4 ; 4 'are articulated with their upper ends and these are supported with their lower ends in support bearings 5 ; 5 'support, the support bearing 5 ; 5 'are firmly connected to a vehicle floor 7 and the composite forms a four-link chain. The passenger seat with the seat plate 1 is supported by one or more four-link chains of this type and, at the same time, pivotally mounted, wherein when using a plurality of four-link chains between the coupling rods 4 ; 4 'a torsionally rigid connecting element 6 is attached. Below the seat plate 1 there is preferably a lever 9 pointing vertically to the vehicle floor 7 in the area of a center line 8 , on the free ends of which point towards the vehicle floor 7 there is a resetting device with resetting elements 10 ; 10 ', attenuators 11 ; 11 'is attached and the reset members 10 ; 10 'in bearings 12 ; 12 'on the support bearing 5 ; 5 'are attached to the vehicle floor 7 . The storage conditions 12 ; 12 'in the exemplary embodiment in the support bearings 5 ; 5 'housed, can be arranged separately in the vehicle floor 7 .

According to Fig. 2 of the four-bar chains are the rotationally rigid connection elements 6 mounted between the coupling rods 4, wherein said connecting members 6 preferably have a tubular cross-section.

Fig. 3 shows the Sitzanlenkung with a four-bar chain for passenger seats, in which the coupling rod 4 from the hinged in the bearing consoles 2 crosshead 15, the connecting part 17 and the hinged in the support bearings 5 crosshead 16 is. The opposite sides, not shown in FIGS. 2 and 3, are formed analogously.

Fig. 4 shows parallel passenger seats arranged with at least one elastic spacer 13 , which mainly consists of an adjustable, adjustable to a defined distance, elastic actuator 14 . In the described embodiment, it is advantageously achieved that when driving quickly through arches, the high accelerations that occur are used to move the passenger seat with its center of gravity S by the effect of the four-link chain around a fictitious center of gravity D located almost on the longitudinal axis of the vehicle above the seat center of gravity S from the Normal position to swivel. This takes place as a function of the transverse forces acting, the passenger seat being pivoted laterally at a resulting angle α from a position a to a position b. With the discharge of the vehicle from the bow into a straight line, the effect of the transverse force ends and with the support of a resetting device, best consisting of the lever 9 , the resetting elements 10 ; 10 'and the attenuators 11 ; 11 ', the passenger seat is returned from position a or b to the normal position of the center line 8 . In the normal position of the passenger seat, the resetting device also has the function of vibration isolation / vibration damping in the event of transverse impacts that are caused by unevenness in the route. When juxtaposed passenger seats a spacing and a vote is two transducers between the driving passenger seats required, which is achieved by mainly mounted between the seat plates 1 spacers 13 with at least one elastic actuator fourteenth With this device, on the one hand, a defined distance and, on the other hand, a harmonious movement when swinging out the passenger seats is guaranteed. The driving comfort for the passenger is improved with the seat linkage according to the invention.

Reference list

1

Seat plate

2nd

;

2nd

'' Storage consoles

3rd

;

3rd

' Camp

4th

;

4th

'' Coupling rods

5

;

5

Support bearing

6

;

6

'' Fasteners

7

Vehicle floor

8th

Center line

9

lever

10th

;

10th

'Reset links

11

;

11

'' Attenuators

12th

;

12th

'' Bearings

13

Spacers

14

Actuator

15

;

15

'Crosshead

16

;

16

'Crosshead

17th

;

17th

'' Connecting part
D pivot point
S center of gravity
α angle
a position
b position

Claims (3)

1.Seat linkage for swiveling passenger seats with adjustable backrest in passenger transport vehicles, in particular for rail vehicles, with at least one lateral force-dependent passenger seat which can be pivoted transversely to the seat direction, with a swivel axis provided in the vehicle longitudinal direction above the center of gravity of the seat, the passenger seat being connected to the vehicle via bearings and Reset and damping members, characterized in that a seat plate ( 1 ) of the passenger seat via coupling rods ( 4 ; 4 ') with bearings ( 3 ; 3 ') on the seat plate ( 1 ) and with support bearings ( 5 ; 5 ') a vehicle floor ( 7 ) is movably arranged, at least one four articulated chain being formed and below the seat plate ( 1 ) a lever ( 9 ) pointing vertically to the vehicle floor ( 7 ) is provided, which is firmly connected to the seat plate ( 1 ) and between the free end of the lever ( 9 ) and position stanchions ( 12 ; 12 ') return members ( 10 ; 10 ') with damping elements ( 11 ; 11 ') are arranged, and the passenger seat is mounted such that it swings around a fictitious center of gravity (D) above the center of gravity of the seat (S) and between torsionally rigid connecting elements ( 4 ; 4 ') are attached to each other, torsionally rigid connecting elements ( 6 ; 6 '), and the Kop pelstangen ( 4 ; 4 ') consist of a crosshead ( 15 ; 15 '), a connecting part ( 17 ; 17 ') and a crosshead ( 16 ; 16 '). 2. Seat linkage according to claim 1, characterized in that a spacer ( 13 ) with at least one adjustable elastic actuator ( 14 ) is attached between passenger seats arranged side by side. 3. Seat linkage according to claim 2, characterized in that the actuator ( 14 ) is a damping device.