Longitudinal adjuster for seat and seat

Abstract

To provide an improved seat having a longitudinal adjuster, in particular providing an easy-entry function.SOLUTION: The present invention relates to a longitudinal adjuster (2) for a seat, in particular vehicle seat, comprising at least a fixed lower track (3) and an upper track (4) slidable coupled to the lower track (3), an adjustment device (7) for longitudinally adjusting the upper track (4) relative to the lower track (3), a latch mechanism (6) to latch the upper track (4) relative to the lower track (3), and an electromechanical device (8) relatively coupled to the latch mechanism (6), wherein the electromechanical device (8) is configured to bias the latch mechanism (6) between a release position (RP) and a latch position (LP), and upon release of the latch mechanism (6) the adjustment device (7) is actuated to drive the upper track (4) relative to the lower track (3).SELECTED DRAWING: Figure 1B

Description

[Technical field]

[0001] The present disclosure relates generally to seats, and more particularly to fore-aft adjusters for vehicle seats. The fore-aft adjuster is configured to adjust the seat for easy entry. The present disclosure also relates to a seat equipped with such a fore-aft adjuster. [Background technology]

[0002] Fore-aft adjusters for seats are known from the prior art, A lower track is fixed to the bottom of the vehicle, and an upper track is slidably connected to the lower track. The device includes at least a track mechanism having a lock.

[0003] A part of a vehicle seat to allow easy access to the second seat row of the vehicle Various easy entry systems are known. Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to provide an improved fore-aft adjuster for a seat, particularly a vehicle seat. The object of the present invention is also to provide a vehicle having such a front-rear adjuster, particularly To provide an improved seat that provides an easy entry function. [Means for solving the problem]

[0005] According to the forward / rearward adjuster, the above object is achieved by the features of claim 1. According to the seat, in particular a vehicle seat, said object is achieved by the features of claim 13. This is resolved.

[0006] According to the present disclosure, a fore-aft adjuster for a seat, particularly a vehicle seat, is provided that is an upper track slidably connected to the track and the lower track; and A latch mechanism that latches the upper track and moves the upper track back and forth relative to the lower track. The adjuster is provided with at least an adjustment device for adjusting the front-rear direction. an electromechanical device coupled relatively to the latch mechanism, the electromechanical device comprising: between a released position and a latched position, and when the latch mechanism is released, The adjustment device is actuated to drive the upper track relative to the lower track. The adjustment device drives the upper track forward and backward. For example, the forward and backward adjuster Easy access to the rear of the seat from the use position, specifically the seating and / or comfort position. In particular, the upper track is configured to move to an easy entry position that provides is electrically driven by the adjustment device when the latch mechanism is in the released position.

[0007] According to the present invention, a mechanism for reducing the effort required to return from the easy entry position to the use position is provided. In particular, the effort required to return the seat from the easy entry position to the locked position is reduced. It will be reduced.

[0008] The present invention also provides a method for substantially adjusting the upper track relative to the lower track from one location to another. Allows automatic adjustment of the seat without manual adjustment of the seat, e.g., manually releasing the latch mechanism There is no need to push or pull the sheet from one position to another after it has been placed.

[0009] Moreover, the present invention, in combination with low-cost and relatively lightweight components, allows for easy - High levels of functionality and performance, such as fast power rearward movement of the seat from the entry position Make it possible.

[0010] For example, the electromechanical device may include at least one electromagnetic actuator that biases the latch mechanism in one direction. and at least one spring element biasing the latch mechanism in an opposing direction. In particular, the latch mechanism is configured as a solenoid. This reduces the number of parts and the required installation space for operating the mechanism. By using an electromechanical device such as This allows for greatly simplified self-actuating adjustment of the latch mechanism without the need for a separate latch mechanism. In response to the linear motion of the electromagnetic actuator, the spring element activates the latch mechanism when power is removed. The spring is either a pressure spring or a tension spring for biasing the mechanism in one of the opposite directions.

[0011] It is understood that the biasing force initiated by the electromechanical device may be, for example, an attractive force or a pushing force. It is understood.

[0012] According to one embodiment, the electromagnetic actuator, particularly when powered, activates the latch mechanism. to bias, i.e., push or pull, the latched position to the released position or vice versa. The spring element is configured to bias the latch mechanism from the released position to the latched position, particularly when power is removed. The actuator is configured to bias, i.e., pull or push, the actuator toward the switch position or vice versa.

[0013] For example, electromechanical devices may have a latching mechanism when electrical power, particularly electrical power / current, is applied. When configured to release, the electromechanical device is in one of the active states. In the active state, the electromechanical device biases the latch mechanism from the latched position to the released position. Therefore, electromechanical devices operate without the application of power, such as when the power supply is switched off. The latch mechanism is configured to lock when the electromechanical device is passive. In this case, the electromechanical device is an on-off solenoid. In this case, when power is applied, the electromagnetic actuator activates the latch mechanism. When the actuator is pushed or pulled from one position to another and no power is applied, the electromagnetic actuator The element is released to allow the latch mechanism to be pushed or pulled from one position to another. do.

[0014] Optionally, the electromechanical device holds the latch mechanism in a fixed position without a constant power source. It is configured as a locking solenoid. For example, a momentary current of a certain polarity is applied to the electromagnetic actuator. By applying a voltage to the actuator, the electromagnetic actuator moves the latch mechanism from one position to another. position and latches until a momentary current of opposite polarity is applied to the electromechanical device. This current counteracts the magnetic force of the electromagnetic actuator and releases the spring force. The element allows the latch mechanism to be biased in the opposite position.

[0015] According to a possible embodiment, the electromechanical device may include a latch mechanism and / or an upper track. The latch mechanism is configured to be biased back to the latched position from the released position when the designated position is reached. In particular, the electromechanical device automatically moves the latch mechanism from the released position to the latched position. The spring is configured to dynamically bias the spring back.

[0016] For example, end stops located in the front area of ​​the truck allow the The forward position for easy entry is shown. Released latch mechanism and / or upper trolley When the rack makes contact with the end stop, the applied power to the electromechanical device is switched off. or, more accurately, blocked.

[0017] Also, the initial position, such as the designated position, e.g. the rear position, particularly the use or comfort position of the seat, A predefined position that is communicated to a power source of an electromechanical device. For example, a latching mechanism When the sensor reaches a predefined position, the power applied to the electromechanical device is switched off. For example, a predefined, designated rear position is obtained, or more precisely, blocked. is the position before the latched position. Then, the electromechanical device releases the latch mechanism in the released position. When the force biasing the latch mechanism is switched off, the latch mechanism can be biased into the latched position. do.

[0018] The electromechanical device is also configured to communicate with a control unit having a plurality of sensors. The control unit transmits the received signal of the sensor to activate or deactivate the electromechanical device. In particular, power is applied or removed from the electromagnetic actuator.

[0019] According to another embodiment, the adjustment device may include a latch mechanism and / or an upper track at the end. The adjustment device is configured to stop the drive when the stop position is reached. The latch mechanism is arranged in its defined latch position, specifically when it is locked. This stops the latch mechanism and therefore the upper track in the end stop position. The signal to stop driving the regulating device is generated by the increase in resistance experienced by the regulating device. After detection, it can start.

[0020] For example, end stops located in the front area of ​​the track allow the , e.g., the forward end stop position for easy entry is shown. When the latch mechanism and / or the upper track contact the end stop, the adjustment device stops driving. Also, when the adjustment device stops driving, the latch mechanism moves from the released position to the latched position. The actuator is biased to the position.

[0021] Especially from the front end stop position back to the rear end stop position (especially the comfortable position for use) To initiate the rearward movement of the upper track, the user operates the operating element and / or the seat For example, the control unit can apply a force to the seat (e.g. Upon detecting a force acting on the seat (such as the seat pan or seat back), the electromechanical device The adjustment device is actuated to bias the latch mechanism from the latched position to the released position, while the adjustment device is switched on to electrically drive the upper track in the opposite direction relative to the lower track. do.

[0022] In other words, the rear end stop position is determined when the latch mechanism is detected in the latched position. The forward end stop position affects the adjustment device. When it detects an increase in resistance between the end stops and latch mechanism and / or the upper traction When contact with the rack is detected, it may be communicated to an adjustment device.

[0023] For this purpose, the regulating device is adapted to communicate with a control unit having a number of sensors. In addition, the switching of the electromechanical device and the regulating device are mutually dependent. In this way, the various states of the electromechanical device and the regulating device can be This ensures smooth switching.

[0024] According to a further embodiment, the electromechanical device is actuable via an operating element. For example, the operating element may be located in a vehicle, for example in the dashboard area or in the rear compartment area; and / or on the corresponding seat. Thus, the operating elements may be buttons, levers, switches, etc. In particular, the operating element may be one of a switch or any other operable element. By this, the electromechanical device generates a signal that urges the latch mechanism from the latched position to the released position. When the latch mechanism is released, the adjustment device receives a signal that causes the upper track to slide. The adjustment device then receives a signal that the latch mechanism is released so that the The chair is adapted to drive the upper track relative to the lower track, specifically forward or backward. It is activated.

[0025] For example, the latch mechanism is a conventional latch mechanism. The latch mechanism is essentially a lower track The lower track is located within the track contour formed by the upper track. The track and the upper track alternately engage around each other to form a track profile. It is formed so that

[0026] For example, the latch mechanism may be formed as a latch plate or a latch lever, a pawl or a catch. The latch mechanism includes a plurality of latch elements, such as teeth elements protruding from a latch plate. The protruding element protrudes through an opening formed in the upper track. Also, a protruding element is formed on the lower track to hook the upper track to the lower track. Specifically, the latch mechanism is movably disposed within the track profile. By moving the latch mechanism, for example up and down, the protruding element is released from the opening in the lower track. This allows the upper track to slide relative to the lower track.

[0027] In another embodiment, the electromechanical device is located on the upper track and directly connected to the latch mechanism. For example, the electromechanical device may be attached to the top surface of the upper track above the latch mechanism. The latch mechanism may include an actuating pin, rod, or bolt. The actuating pin may be located at the top of the The actuating pin is guided through an upper opening formed on the upper surface of the rack, and is connected to the electromechanical device. and thus connected to the upper track. Upon actuation, the plunger of the electromechanical device is urged up and down by electromagnetic force. and simultaneously biases the latch mechanism actuating pin to lock the latch mechanism against the lower track. Or unlock it.

[0028] According to another possible embodiment, the electromechanical device is located away from the upper track. The electromechanical device is connected to the latch mechanism through the towel bar. Depending on the available space, the arrangement of the electromechanical device can be variably adapted. By placing the mechanical devices away from the top track, the overall package is improved In addition, by connecting the electromechanical device and the latch mechanism through the towel bar, a double The operating function is enabled.

[0029] In a further embodiment, the adjustment device is configured as an external transmission device. The upper track is driven by an electromechanical device, in particular an electromagnetic actuator. The upper track is then separated from the lower track, and the movement of the upper track is then controlled by the external transmission through the adjustment device. It is activated by movement.

[0030] According to another embodiment, the adjustment device is adapted to adjust the track length at least partially along the track length. The rack and pinion drive is arranged in such a way that, for example, the second row seats Use from comfort position to easy entry position and from easy entry position to lock The power supply to the user's comfortable position is greatly simplified.

[0031] The rack and pinion drive has a toothed rack that is fixed relative to the lower track. and a pinion fixed relatively to the upper track. For example, the toothed rack extends at least partially along the length of the lower track. In particular, the toothed rack is arranged to extend substantially parallel to the side portion of the track. The pinion is driven by a power and engages with a toothed rack to move along the front and rear direction. This allows the upper track to move due to the powered movement of the pinion. For example, The upper track is driven by an electromechanical device, in particular an electromagnetic actuator. The internal track is disconnected and external transmission is then achieved by pinion-rack interaction. .

[0032] According to a further embodiment, the adjustment device is adapted to adjust the rack and pin position when the latch mechanism is released. The vehicle is equipped with a drive unit such as a motor that supplies power to the on-drive. The latch mechanism is connected to the control unit, but when the latch mechanism is released, a signal is sent to the drive unit. Power is transmitted to the rack and pinion drive for the forward and backward movement of the upper track Start.

[0033] In another possible embodiment, the drive unit is coupled relatively to the upper track. For example Optionally, the drive unit is disposed on the upper surface of the upper track. The drive unit is laterally spaced from the rack. In particular, the drive unit is a The drive unit is connected to the upper track via a drive shaft. The arrangement of the drive unit can be changed depending on the assembly space. For example, a laterally positioned drive unit can be easily covered. .

[0034] In a further possible embodiment, the adjustment device is adapted to adjust the latch mechanism so that it is released or latched. When the clutch is engaged, it connects or disconnects the drive unit from the rack and pinion drive. For example, the clutch unit is a drive unit and a rack and pinion drive. Specifically, the clutch unit is arranged between the drive unit and the pinion. In particular, the clutch unit is a device that creates an electromechanical device. When power is applied or cut off to operate the drive unit and the rack and pinion drive The device is configured to connect or disconnect a live stream.

[0035] The present invention also relates to a seat cushion comprising at least a seat pan, a backrest, and any of the above-described embodiments. The present invention relates to a seat, particularly a vehicle seat, that is equipped with a front-rear adjuster. The forward adjuster is configured to at least move the seat pan to the easy entry position. It is done.

[0036] In another embodiment, the seat back moves the seat pan to an easy entry position and is ready for use. The seat can be moved relative to the seat pan while being returned to a comfortable position. [Brief description of the drawings]

[0037] The present disclosure will be more fully understood from the detailed description given herein below and the accompanying drawings, in which: These drawings are given by way of example only and are therefore not to be construed as limiting the present disclosure. This does not limit the scope of the disclosure. [Figure 1A] 1 shows a side view of one embodiment of a seat, particularly a vehicle seat, having a fore-aft adjuster. [Figure 1B] FIG. 1 illustrates a perspective view of one embodiment of a fore-aft adjuster with two track pairs. [Figure 2A] 1 illustrates a cross-sectional view of at least a portion of one embodiment of a fore-aft adjuster, specifically one track pair. [Figure 2B] 1 illustrates a top view of at least a portion of one embodiment of a fore-aft adjuster, specifically one track pair. [Figure 2C] 1 illustrates a side view of at least a portion of one embodiment of a fore-aft adjuster, specifically one track pair. [Diagram 3] FIG. 13 illustrates a side view of one embodiment of a latch mechanism for a fore-aft adjuster. [Figure 4] 4A and 4B show a side view and a cross-sectional view of another embodiment of a fore-aft adjuster, specifically one track pair.

[0038] Corresponding parts are designated with the same reference numerals in all figures. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0039] FIG. 1A shows a seat 1, in particular a vehicle seat, having a fore-aft adjuster 2 with a track device TA. FIG. 1 shows a side view of an embodiment of a seat. The track device TA has at least one track pair. Equipped with PT1.

[0040] FIG. 1B shows a perspective view of one embodiment of a fore-aft adjuster 2. comprises two track pairs PT1, PT2 arranged parallel to each other.

[0041] In order to better understand the following description of the seat 1 and the fore-aft adjuster 2, the coordinate system is updated. The coordinate system includes a longitudinal axis x, a lateral axis y, and a vertical axis z relative to the vehicle. is positionable at least about the fore-aft axis x.

[0042] The seat 1 comprises a seat pan 1.1 and a backrest 1.2 connected to the seat pan 1.1. For example, the backrest 1.2 can be moved, in particular tilted, relative to the seat pan 1.1. It is Noh.

[0043] The seat 1 has a seat pan 1.1 which can be moved together with a backrest 1.2 into at least two positions SP1, It can be moved forward and backward along the moving path W between SP2 by the forward and backward adjuster 2. In detail, the seat 1 has an easy entry function. It can be moved between a comfortable use position SP1 and an easy entry position SP2. In easy entry position SP2, access to the second seat row and / or rear compartment This allows for easier access to

[0044] A fore-aft adjuster 2 is provided for fore-aft movement of the seat 1 and is shown in FIG. 1B. Each track pair PT1 and PT2 has two It has tracks 3 and 4.

[0045] At least one of the track pairs PT1, PT2 includes a first lower track 3 and a lower track and a second upper track 4 slidably connected to the lower track 3. The lower track 3 is In the illustrated embodiment, the upper track 4 is fixed to the vehicle structure such as the seat pan 1. .1, using the seat pan 1.1 Comfort position SP1 and easy entry position SP Move between 2.

[0046] For example, a pair of tracks PT1, PT2 are arranged on each side of the seat pan 1.1. Therefore, at least one of the track pairs PT1 and PT2 is in front of or behind the track pair PT1. via a mounting rod 5 for simultaneous forward and backward movement of the seat 1 when actuated for movement. and can be connected to each other.

[0047] The front-rear adjuster 2 hooks the upper track 4 to the lower track 3. Further, the front-rear adjuster 2 has at least one latch mechanism 6 for fastening the upper The adjustment device 7 for adjusting the track 4 in the fore-aft direction relative to the lower track 3 is provided. Each has one.

[0048] For example, the latch mechanism 6 and the adjustment device 7 may be arranged to adjust the position of one or both of the track pairs PT1, PT2. In the illustrated embodiment, the latch mechanism 6 and the adjustment device 7 are arranged on the track pair. On the other hand, it is arranged in a manner relatively connected to PT1.

[0049] The front-rear adjuster 2 is connected to an electromechanical device 8 relatively connected to the latch mechanism 6. As shown in FIG. 2A, the electromechanical device 8 has a release position RP and a latched position LP. When the latch mechanism 6 is released, the adjustment device The chair 7 is actuated to drive the upper track 4 back and forth relative to the lower track 3. do.

[0050] For example, the electromechanical device 8 is configured as a solenoid. 8, when power or current is applied to the electromechanical device 8, causes the latch mechanism 6 to move to the release position RP This is because the electromechanical device 8 is operated to bias the power Or from a passive state where no current is being applied to an active state where power or current is being applied. This means that the electromechanical device 8 switches from In this state, it acts on the latch mechanism 6.

[0051] In the illustrated embodiment, in the passive state of the electromechanical device 8, the latch mechanism 6 In the active state of the electromechanical device 8, the latch mechanism 6 is held in the latch position LP. In particular, the electromechanical device 8 is held in its release position RP when the latch mechanism 6 is in its Prevents the latched position LP from moving to its released position RP or from moving to its latched position LP.

[0052] To transmit an initiation for operating the regulating device 7 depending on the state of the electromechanical device 8 For this purpose, at least the regulating device 7 and the electromechanical device 8 are connected to a control unit such as a sensor array. It is connected to No.9.

[0053] For example, the electromechanical device 8 can be actuated by an actuating element (not shown). Thus, the operating element can be coupled to the electromechanical device 8 via a control unit 9. For example, the operating element can be located inside the vehicle, e.g. in the dashboard area or in the rear compartment. The operating elements are arranged in the touch panel area and / or the corresponding sheet 1. It may be one of a lever, a switch or any other operable element. By operating the element, the electromechanical device 8 releases the latch mechanism 6 from the latch position LP. When the latch mechanism 6 is released, the adjustment device 7 receives a signal to bias the latch mechanism 6 to the release position RP. Then, the latch mechanism 6 is released and a signal is received that the upper track 4 is ready to move. The adjustment device 7 then adjusts the upper track 4 relative to the lower track 3 in detail. is actuated to drive along a path of travel W.

[0054] In particular, the adjustment device 7 is configured as an external transmission device for the tracks 3, 4. Thereby, the adjustment device 7 is arranged substantially outside the contour of the tracks 3, 4. For example, the adjustment device 7 is arranged substantially between the track pair PT1, PT2.

[0055] According to one embodiment, the adjustment device 7 comprises a rack and pinion drive 7.1 In the embodiment shown, the rack and pinion drive 7.1 is connected to the lateral side of the tracks 3, 4. The rack and pinion drive 7.1 is power driven. The adjustment device 7 powers the rack and pinion drive 7 for forward and backward movement The drive unit 7.2 is configured as follows:

[0056] The adjustment device 7 also adjusts the position of the drive unit 7.2 when the latch mechanism 6 is released or latched. and a clutch unit 7.3 for connecting or disconnecting the rack and pinion drive 7.1. For example, the clutch unit 7.3 is connected to the drive unit 7.2 by a rack and pinion. In particular, the clutch unit 7.3 is arranged between the electromechanical drive 7.1 and the When power is applied or cut off to operate the device 8, the drive unit 7.2 and the latch It is arranged to connect or disconnect the crank pinion drive 7.1.

[0057] For example, the adjustment device 7 may be adapted to adjust the position of the latch mechanism 6 when the latch mechanism 6 reaches the end stop positions EP1 and EP2. Additionally or optionally, the adjustment device 7 is configured to stop driving when , when the upper track 4 reaches the detected end stop position EP1, EP2, For example, the adjustment device 7 is configured to stop the latch mechanism 6 from In particular, when the latch position LP is set to the latch position LP, the drive is stopped when the latch position LP is set to the latch position LP. , the latch mechanism 6, and thus the upper track 4, is in the end stop position EP1 or EP2 The signal to stop driving the regulating device 7 is generated based on the increase in resistance experienced by the regulating device 7. and / or after detecting the latch in the defined end stop position EP1 or EP2 It may start upon detection of the mechanism 6 and / or the upper track 4.

[0058] End stop position EP1, e.g. the rear end corresponding to the comfortable use position SP1 of the seat 1 The stop position is indicated by the latch position LP of the latch mechanism 6. When it is detected that the adjustment device 7 is in the switch position LP, the adjustment device 7 stops driving.

[0059] Forward end stop position EP2 corresponds, for example, to easy entry position SP2 of seat 1 The forward end stop position is determined by the end stop located in the forward area of ​​tracks 3 and 4. When the released latch mechanism 6 abuts against the end stop 10, the adjustment The nodal device 7 stops operating.

[0060] Additionally or optionally, the upper track 4 is provided with a corresponding end stop portion. When the end stop portion of the adjustment device 7 abuts against the end stop 10, the adjustment device 7 stops driving. For example, the corresponding end stop of the upper track 4 is located behind the upper track 4. The support may be formed as a flap, tab or bracket element disposed in the side region.

[0061] 2A to 2C show at least a portion of an embodiment of a fore-aft adjuster 2, specifically one 2A shows a cross-sectional view, a top view, and a side view of track pair PT2. FIG. 2B shows track pair PT2 in a cross-sectional view, FIG. 2C shows track pair P T2 is shown in lateral view.

[0062] For example, the latch mechanism 6 is a typical latch mechanism 6. The latch mechanism 6 is essentially a lower It is located within the track contour formed by the track 3 and the upper track 4. The lower track 3 and the upper track 4 are alternately engaged around each other to form a track. The lower track 3 and the upper track 4 are formed to form a contour. In particular, the lower track 3 and the upper track 4 have an inner The side and outwardly folded side sections 3.1, 4.1 engage with each other and form a closed traverse. The assembly space AS defines a block contour and a defined assembly space AS. The assembly space AS includes at least It is a cavity extending in the front-rear direction of each track pair PT1, PT2.

[0063] For example, the latch mechanism 6 may be a latch lever, a pawl, or a cap as the latch plate 6.1. The latch plate 6.1 comprises a plurality of latch elements 6.2, e.g. The latch element 6.2 is provided with a protruding element, such as a tooth element, protruding from the upper track 6.1. The opening 4.2 is provided in the side portion 4.1. The opening 4.2 extends in the vertical direction of the side portion 4.1.

[0064] To latch the upper track 4 to the lower track 3, the latch element 6.2 is The latch mechanism 6 projects into an opening 3.2 formed in the rear track 3. To lock the seat 1 in the end stop position EP1, i.e. in the comfortable position SP 1, is provided in the side portion 3.1, in particular in the rear area of ​​the lower track 3. 3.2 extend in the vertical direction of the side portion 3.1. In a further embodiment, these openings 3. 2 is used to lock the latch mechanism 6 in the forward end stop position EP2, i.e., For the easy entry position SP2 of the port 1, the lateral part of the front area of ​​the lower track 3 It is provided in 3.1.

[0065] In particular, the latch mechanism 6 is movably arranged within the track profile. For example, the latch mechanism 6 is arranged to be movable up and down. In detail, the latch plate 6.1 is horizontally disposed in the assembly space AS. By moving the latch plate 6.1 downwards, the latch element 6.2 The latch plate 6.1 is released from the opening 3.2 in the lower track 3. In the H) state, the latch plate 6.1 is shown as the latch position LP and is also shown in FIG. In the released state of the latch plate 6.1, the latch plate 6.1 is in a lower vertical position designated as the release position RP and also shown in FIG.

[0066] The electromechanical device 8 is disposed on the upper track 4 and is directly coupled to the latch mechanism 6. For example, the electromechanical device 8 is located on the upper surface 4.3 of the upper track 4 and above the latch mechanism 6. The upper surface 4.3 connects the side sections 4.1 and forms a U-shaped upper track 4. Complete.

[0067] The latch mechanism 6 comprises an actuating pin 6.3, a rod or a bolt. The actuating pin 6.3 is The actuating pin 6 is guided through an upper opening 4.4 formed in the upper surface 4.3 of the track 4. 3 is connected to an electromechanical device 8 and thus to the upper track 4 .

[0068] The electromechanical device 8 includes at least one electromagnetic actuator that biases the latch mechanism 6 in one direction. an actuator 8.1 and at least one spring element 8.2 for biasing the latch mechanism 6 in the opposite direction; 8.1 Electromagnetic actuator when power is applied In response to the linear up and down movement of the spring element, the electromagnetic actuator 8 .1 is either a pressure spring or a tension spring which biases one of the two in opposite directions. For example, The actuator 8.1 has a plunger that can be moved up and down by electromagnetic force. The electromagnetic force is initiated by applying power to the electromechanical device 8. When the electromagnetic force is turned off, the spring force drives the electromagnetic actuator 8.1. Return it to its initial position.

[0069] In the embodiment shown, the electromagnetic actuator 8.1 activates a latching mechanism when power is applied. 6 from the latched position LP to the released position RP, i.e., in a downward direction. Element 8.2 is a mechanism for changing the latch mechanism 6 from the release position RP to the latched position LP when the power is cut off. axially, i.e., upwardly.

[0070] By operating the electromechanical device 8, the electromagnetic actuator 8.1 is attached in the up and down directions. This simultaneously urges (i.e. pushes) the actuating pin 6.3 of the latch mechanism 6 downward. The electromechanical device 8 and the latch mechanism 6 may be configured and operated as a clutch device. Note that you can.

[0071] The rack and pinion drive 7.1 of the adjustment device 7 is fixed relative to the lower track 3. A toothed rack 7.1.1 is fixed relative to the upper track 4 and a pinion 7. Equipped with 1.2.

[0072] For example, the toothed rack 7.1.1 extends partially along the length of the lower track 3. In detail, the toothed rack 7.1.1 is substantially fitted to the side portions 3.1, 4.1 of the tracks 3, 4. The pinion 7.1.2 is configured to be power driven. The upper traction member 7.1.1 engages with the toothed rack 7.1.1 and moves in the forward and backward directions. The rack 4 moves relative to the lower track 3 following the powered movement of the pinion 7.1.2. Move.

[0073] In detail, the clutch unit 7.3 connects the drive unit 7.2 to the pinion 7.1.2. or to disconnect the drive unit 7.2 and the pinion 7.1.2 from the pinion 7.1.2 It is placed between and connects them.

[0074] To move seat 1 from the use comfort position SP1 to the easy entry position SP2, The electromechanical device 8 is actuated, for example, via an operating element. Alternatively, a current is applied, while the electromagnetic actuator 8.1 moves the latch mechanism 6 to the latch position L. P to the release position RP. Release of the latch mechanism 6 is detected. Then, the clutch unit 7.3 engages with the drive unit 7.2 and the pinion 7.1.2. This causes the drive unit 7.2 to move the upper track 4 to the end stop. When the end stop 10 is contacted, The drive unit 7.2 stops driving. The upper track 4 reaches the front end stop position EP2. When it is detected that the electric current has reached the electromagnetic actuator 8.1, it is released. This means that the power or current applied to the mechanical device 8 is cut off. The spring element 8.2 is arranged so that the latch plate 6.1 presses against the side part 3.1 of the lower track 3. Pull the latch mechanism 6 upwards. Additionally or optionally, lock the latch element 6.2. An opening 3.2 for the lower track 3 is also provided in the front area, while the latch mechanism 6 is The latched position LP is at the front end stop position EP2 of the outer track 4. The entry port 1 is in the easy entry position SP2.

[0075] To move seat 1 from the easy entry position SP2 to the comfortable use position SP1, The electromechanical device 8 is then activated, in particular re-energized. This causes the electromagnetic actuator The actuator 8.1 pushes the latch mechanism 6 downwards again. The actuation of the electromechanical device 8 is detected. Then, the clutch unit 7.3 engages with the drive unit 7.2 and the pinion 7.1.2. This causes the drive unit 7.2 to rotate the pinion 7.1.2 in reverse. The possible directions of rotation of the pinion 7.1.2 are shown in Fig. 2A through The upper track 4 reaches a designated position DP shown in FIG. The designated position DP is, in particular with respect to the latch element 6.2, , a predetermined position of the latch mechanism 6. In detail, the designated position DP is a predetermined position of the latch mechanism 6. 6 before the latch position LP. The latch mechanism 6, in particular its latch elements 6.2 and / or Or when the latch plate 6.1 reaches a predetermined designated position DP, the latch mechanism 6 This assumed position is transmitted to the power supply of the electromechanical device 8 via the control unit 9 . When it is detected that the latch mechanism 6 is in the designated position DP, the applied voltage to the electromechanical device 8 is The force is switched off, or more precisely, interrupted. Then the electromagnetic actuator 8.1 is turned off, while the spring element 8.2 pulls the latch mechanism 6 to the latched position LP. After the designated position DP is detected, the drive unit 7.2 can then The drive continues for a distance determined by the arrow B until the latch mechanism 6 reaches the rear end stop of the upper track 4. The actuator is configured to stop driving when it is biased to a latch position LP in the latch position EP1. The seat 1 is in a comfortable use position SP1.

[0076] FIG. 3 shows a side view of one embodiment of the latch mechanism 6 of the front-to-rear adjuster 2. In particular, The latch mechanism 6 is in a designated position DP, and at the designated position DP, the electromechanical device 8 The power is turned off so that the latch mechanism 6 can be automatically biased to its latched position LP.

[0077] 4A and 4B show another embodiment of the front-to-rear adjuster 2, specifically one track pair P Side and cross-sectional views of T2 are shown.

[0078] In the illustrated embodiment, the electromechanical device 8 is positioned away from the upper track 4 and The mechanical device 8 is connected to the latch mechanism 6 via a towel bar 11. The towel bar 11 moves about a pivot axis PA disposed on the upper track 4. It is connected to a towel bar bracket 11.1 fixedly arranged on the upper surface of the track 4. When the electromechanical device 8 is activated and power is applied, the electromagnetic actuator 8.1 The towel bar 11 is connected to the switch mechanism 6 so that the other end of the towel bar 11 can be moved downward. 1 is pushed upward. This causes the latch mechanism 6 to move from the latch position LP to the release position RP. The upper track 4 is then released and moved relative to the lower track 3. An electric motor is provided to bias the latch mechanism 6 from the release position RP back to the latched position LP. The power applied to the electromechanical device 8 is cut off. The electromechanical device 8 returns to its default position. This causes the spring element 8.2 to pull the towel bar 11 downwards, while The latch mechanism 6 is pulled upward from the release position RP to the latched position LP. For example, The mounting space is improved.

[0079] In FIG. 4B, the drive unit 7.2 is connected relatively to the upper track 4. The drive unit 7.2 is arranged laterally spaced apart from the tracks 3, 4. In particular: The drive unit 7.2 is connected to the upper track 3 via a bar 12, rod or the like, and is 7.1.2 and the upper track 4 together in the forward and backward direction. For example, the drive unit 7 The mounting bracket 13 for connecting the .2 to the upper track 4 has one end 4, and the other end of the mounting bracket 13 extends vertically to connect the drive unit 7.2 For example, the drive unit 7.2 provides mounting areas for two track pairs PT1, This allows the mounting space to be improved. Furthermore, the drive unit 7.2 is protected from external influences. [Explanation of symbols]

[0080] 1 sheet 1.1 Sheet pan 1.2 Backrest 2 Forward / backward adjuster 3 tracks, lower track 3.1 Side part 3.2 Aperture 4 tracks, upper track 4.1 Side part 4.2 Aperture 4.3 Top side 4.4 Top opening 5 Mounting rod 6 Latch mechanism 6.1 Latch plate 6.2 Latching Elements 6.3 Actuating Pin 7 Regulating Devices 7.1 Rack and pinion drive 7.1.1 Toothed rack 7.1.2 Pinion 7.2 Drive unit 7.3 Clutch unit 8 Electromechanical Devices 8.1 Electromagnetic Actuators 8.2 Spring elements 9. Control Unit 10 Endstop 11 Towel Bar 11.1 Towel bar bracket 12 Bar 13 Mounting bracket AS Assembly Space DP specified position EP1, EP2 end stop positions PA Swivel Axis PT1, PT2 track pair Ro Arrow indicating the direction of rotation RP release position LP latch position SP1, SP2 position TA Track Equipment W Movement Path x Anteroposterior axis y horizontal axis z Vertical axis

Claims

1. A fore-aft adjuster (2) for a seat (1), in particular a vehicle seat, comprising: A fixed lower track (3); an upper track (4) slidably connected to the lower track (3); An adjustment device for adjusting the upper track (4) in the front-rear direction relative to the lower track (3). Vice (7) and A latch mechanism ( ) for latching the upper track (4) to the lower track (3) 6) and an electromechanical device (8) relatively connected to the latch mechanism (6); At least The electromechanical device (8) switches the latch mechanism (6) between a release position (RP) and a latched position (L). When the latch mechanism (6) is released, the The adjustment device (7) drives the upper track (4) relative to the lower track (3). A fore-aft adjuster (2) that is actuated to move the front-to-rear direction.

2. The electromechanical device (8) may be connected to the latch mechanism (6) and / or the upper track ( When the latch mechanism (4) reaches the designated position (DP), the latch mechanism (6) is moved to the release position (RP 2. The method according to claim 1, wherein the latch position (LP) is biased from the front-rear direction to the latch position (LP). Adjuster (2).

3. The adjustment device (7) is adapted to engage the latch mechanism (6) and / or the upper track (4). is configured to stop driving when it is at the end stop position (EP1, EP2). A fore-aft adjuster (2) according to claim 1 or 2.

4. The electromechanical device (8) biases the latch mechanism (6) in one direction at least One electromagnetic actuator (8.1) and a small force acting on the latch mechanism (6) in the opposite direction.

10. The method according to claim 1, wherein the solenoid is configured as a solenoid having at least one spring element (8.2).

4. A front-to-rear direction adjuster (2) according to any one of claims 1 to 3.

5. The electromechanical device (8) is disposed on the upper track (4) and is connected to the latch mechanism. A fore-aft adjuster according to any one of claims 1 to 4, which is directly connected to a structure (6). （２）。

6. The electromechanical device (8) is disposed away from the upper track (4) and The pneumatic mechanical device (8) is connected to the latch mechanism (6) via a towel bar (11). The front-to-rear adjuster (2) according to any one of claims 1 to 4.

7. 7. The method according to claim 1, wherein the adjusting device (7) is configured as an external transmission. The front-to-rear direction adjuster (2) according to any one of the preceding claims.

8. The adjustment device (7) is arranged at least partially along the length of the tracks (3, 4). The present invention relates to a method for manufacturing a vehicle having a rack and pinion drive (7.1) arranged in a manner similar to that described above. The front-to-rear direction adjuster (2) according to any one of claims 1 to 5.

9. The rack and pinion drive (7.1) is arranged relative to the lower track (3). A toothed rack (7.1.1) is fixed relative to the upper track (4).

9. The longitudinal adjuster according to claim 8, further comprising at least a pinion (7.1.2) （２）。

10. The adjustment device (7) adjusts the rack and pin when the latch mechanism (6) is released.

2. The method according to claim 1, further comprising the step of:

10. A front-to-rear direction adjuster (2) according to any one of claims 1 to 9.

11. The drive unit (7.2) is coupled relatively to the upper track (4). Item 11. A front-to-rear direction adjuster (2) according to item 10.

12. The adjustment device (7) adjusts the drive when the latch mechanism (6) is released or latched. It connects or disconnects the moving unit (7.2) and the rack and pinion drive (7.1).

12. The front and rear wheels according to claim 8, further comprising a clutch unit (7.3) for Direction adjuster (2).

13. A seat (1), in particular a vehicle seat, comprising a seat pan (1.1) and a backrest (1.2). ) and a front-rear direction adjuster (2) according to any one of claims 1 to 12. The seat (1) also has

14. The longitudinal adjuster (2) adjusts at least the seat pan (1.1) to a comfortable position for use. and configured to move the sensor between an easy entry position (SP1) and an easy entry position (SP2). A sheet (1) according to claim 13.

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