WO2012005416A1 - Structure of power seat track for motor vehicle - Google Patents

Structure of power seat track for motor vehicle Download PDF

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Publication number
WO2012005416A1
WO2012005416A1 PCT/KR2010/008668 KR2010008668W WO2012005416A1 WO 2012005416 A1 WO2012005416 A1 WO 2012005416A1 KR 2010008668 W KR2010008668 W KR 2010008668W WO 2012005416 A1 WO2012005416 A1 WO 2012005416A1
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WO
WIPO (PCT)
Prior art keywords
motor
seat track
upper rail
driving shaft
motor vehicle
Prior art date
Application number
PCT/KR2010/008668
Other languages
French (fr)
Inventor
Young Jong Kim
Original Assignee
Km&I. Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Km&I. Co., Ltd. filed Critical Km&I. Co., Ltd.
Publication of WO2012005416A1 publication Critical patent/WO2012005416A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/067—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable by linear actuators, e.g. linear screw mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/02258—Electric motors therefor characterised by the mounting of the electric motor for adjusting the seat

Definitions

  • the present invention relates to a power seat track for a motor vehicle capable of being controlled backward and forward, and more particularly, to a structure of a power seat track for a motor vehicle capable of directly fastening a motor driver supporting a motor and a motor driving shaft to a gear box to prevent joint and vibration at the time of driving the seat track.
  • a seat for a motor vehicle is used to keep a sitting posture of a passenger in an optimal state.
  • the seat is configured to include a seat back supporting an upper body of a passenger, a seat cushion supporting a lower body, for example, a hip and a thigh of a passenger, or the like.
  • a seat for a motor vehicle is installed to slidably move forward and backward by a predetermined distance with respect to a car body in order to meet a body shape of a passenger and efficiently use an interior space, which can be implemented by the seat track.
  • the sheet track is configured to include a lower rail fixedly installed on a floor panel in a longitudinal direction of a car body and an upper rail combined with the sheet cushion while being combined to slidably move along the lower rail.
  • a method for sliding the upper rail is classified into a manual driving method and a motor driving method.
  • the motor driving method power is supplied from a battery to a motor by a switch operation of a user to drive the motor and an upper rail is slid backward and forward along a lower rail by the driving of the motor, such that a sheet of a motor vehicle can move by a predetermined distance in a forward and backward direction of a car body.
  • the interior space can be efficiently used and the passenger on a seat can maintain a good ride comfort.
  • the sheet can more conveniently move backward and forward in contrast to the manual scheme, such that it can be more finely controlled.
  • the power sheet track is generally configured to include a lower rail 100 fixedly installed on a floor panel of a motor vehicle in a longitudinal direction of a car body, an upper rail 200 combined with a sheet cushion while being combined to slidably move along the lower rail 100, a motor driver 300 for sliding the upper rail 200, and a gearbox 400 rotating backward and forward along a lead screw 110 installed on the lower rail 100 by the driving of the motor driver 300 to slide the upper rail 200.
  • the motor driver 300 is configured to include a motor 310, a driving shaft 330 of the motor, and a support frame 320 supporting the motor 310 and the driving shaft 330.
  • the gearbox 400 includes a worm gear 430 and a worm wheel 420 and if the worm gear 430 connected to the driving shaft 330 rotates, the gearbox 400 rotates backward and forward by the rotation of the worm wheel 420 inserted into the lead screw 110
  • the power seat track having the above-mentioned configuration is smoothly operated when the motor driving shaft and the lead screw are exactly vertical to each other.
  • the joint and vibration occur at the time of driving the seat track when the angles of the motor driving shaft and the lead screw are not vertical to each other.
  • the support frame of the motor driver is fixed to the upper rail, the motor support plate and the upper rail are not exactly vertical to each other during the assembling process thereof and thus, the angles thereof are deviated from each other, such that the angles of the motor driving shaft and the lead screw are not vertical to each other.
  • the power seat track according to the related art leads to the joint and vibration.
  • An object of the present invention is to provide a structure of a power seat track for a motor vehicle directly fixing a support frame of a motor driver to a gearbox without separate additional components to keep angles of a motor driving shaft and a lead screw in a vertical state at all times.
  • a structure of a power seat track includes: a lower rail 100 fixing to a bottom surface in a motor vehicle and fixedly installed with a lead screw 110 along a longitudinal direction; an upper rail 200 fixedly mounted at a bottom surface of a seat of a motor vehicle and inserted into the lower rail 100 to be slide in a longitudinal direction of the lower rail 100; a gear box 400 fixed to be inserted into the upper rail 200 and including a worm wheel 420 inserted into the lead screw 110 and a worm gear 430 connected to be orthogonal to the worm wheel 420; and a motor driver 300 including a motor 310, a driving shaft 330 of which one end is connected to the motor 310 and the other end is connected to the worm gear 430, and a support frame 320 supporting the motor 310 and the driving shaft 330, wherein the gear box 400 is provided with at least one protruding fixing part 410 protruded upwardly and the protruding fixing part 410 is fixed to be combined with the end of the support frame
  • the protruding fixing part 410 may penetrate through a first through hole 210 formed at the upper rail 200 and be combined at the bottom surface of the fixing frame 323 formed at both ends of the support frame 320, such that the top end of the gearbox 400 contacts the bottom surface of the upper rail 200 and the bottom surface of the fixing frame 323 contacts the top surface of the upper rail 200 to fix the gearbox 400 to the upper rail 200.
  • a coupling surface where the top surface of the upper rail 200 contacts the bottom surface of the fixing frame 323 may be inserted with a buffer member 500 made of an elastic material.
  • the driving shaft 330 may be made of a flexible material.
  • the structure of a power seat track for a motor vehicle keeps the angles of the motor driving shaft and the lead screw in a vertical state at all times during the assembling process of the seat track to prevent the joint and vibration from being generated at the time of driving the seat track, thereby making it possible to easily control the seat.
  • FIG. 1 is a perspective view showing a structure of a power sheet track of the present invention
  • FIG. 2 is a perspective view of a gear box and a lead screw of the present invention.
  • FIG. 3 is an exploded perspective view showing a structure of a power sheet track of the present invention.
  • first fixing block 130 second fixing block
  • support frame 321 motor support frame
  • driving shaft 331 first fixing part
  • protruding fixing part 420 worm wheel
  • buffer member 510 second through hole
  • a sheet of a motor vehicle is configured to include a seat back supporting an upper body of a passenger, a seat cushion supporting a lower body, for example, a hip and a thigh, or the like.
  • a seat of a motor vehicle is installed to slidably move by a predetermined distance in a forward and backward direction of a car body in order to meet a body type of a passenger and efficiently use an interior space.
  • It is a sheet track that performs the above-mentioned function.
  • it is a power sheet track that can adjust a sheet backward and forward by driving a motor by only a simple switch operation.
  • a structure of a power sheet track of the present invention is configured to include a lower rail 100, an upper rail 200, a motor driver 300, and a gearbox 400.
  • the structure of the power seat track of the present invention has a structure in which all the components are symmetrical left and right and therefore, the exemplary embodiment will mainly describe the configuration of any one side.
  • the structure of the power sheet track of the present invention is generally configured to include the lower rail 100 fixedly installed on a floor panel of a car in a longitudinal direction of a car body and an upper rail 200 combined with a sheet cushion while slidably moving along the lower rail 100.
  • a plurality of bearing members are installed to be inserted into a space between the lower rail 100 and the upper rail 200.
  • the bearing member has a structure installed to be integrated with a retainer (not shown).
  • the lower rail 100 may be fixed to the bottom surface in the motor vehicle.
  • the lower rail 100 may be formed backward and forward and longitudinally. Both sides of the cross section of the lower rail 100 may be formed to be extended upward based on the bottom surface thereof and are formed to be curved toward the center thereof. Both ends curved toward the center of the lower rail 100 may each be provided with a flange curved downward.
  • the lower rail 100 may be provided with a lead screw 110 of which the outer peripheral surface is longitudinally formed with an external thread. One end of the lead screw 110 is combined with a first fixing block 120 and the other end thereof is combined with a second fixing block 130, such that it may be fixed to the lower rail 100.
  • one end of the lead screw 110 is inserted into the side of the first fixing block 120 not to be rotated and the bottom surface thereof may be fixed to the bottom surface of the lower rail 100. Further, the other end of the lead screw 110 is inserted into the side of the second fixing block 130 not to be rotated and the bottom surface thereof may be fixed to the bottom surface of the lower rail 100.
  • the method of fixing the lead screw 110 to the lower rail 100 is various, which is not a core of the present invention. Therefore, the detailed description thereof will be omitted.
  • the upper rail 200 may fixedly be mounted on the bottom surface of the sheet for the motor vehicle.
  • the upper rail 200 may be formed backward and forward and longitudinally to be able to be slid in a longitudinal direction of the lower rail 100, while being inserted into the lower rail 100.
  • the top surface of the upper rail 200 is provided with a first through hole 210 to penetrate through the top surface thereof for combining with the gear box400.
  • the first through hole 210 may be provided in at least one, that is, in plural, but the present invention may be formed in two.
  • the first through hole 210 is formed to correspond to a position in which the gear box 400 is inserted into the upper rail 200.
  • the upper rail 200 is slid along the lower rail 100 by the rotation of the inserted gearbox 400 backward and forward and the configuration thereof will be described in the configuration of the gearbox 400 to be described below.
  • the motor driver 300 is a component transferring the force of the motor driven by the power supply of the battery to the gear box 400 and is configured to include a motor 310, a support frame 320, and a driving shaft 330.
  • the support frame 320 is configured to include a wing frame 322 into which the motor support frame 321 seated with the motor 310 and the driving shaft 330 are inserted and a fixing frame 323 formed at the end of the wing frame 322 and combined with the gearbox 400.
  • the support frame 320 may be made of an injection product, not a metal material. This is to reduce the weight of the seat track.
  • the bottom surface of the fixing frame 323 is formed with a seating groove 323a so that the top end of the gearbox 400 is seated thereon and is provided with a gearbox fixing hole 323b to be fixed by fastening the top end of the gearbox 400 by a bolt.
  • the fixing part 331 formed at one end of the driving shaft 330 may be connected to the motor 310 and a second fixing part 332 formed at the other end thereof may be connected to the gear box 400.
  • the driving shaft 330 is inserted into the wing frame 322 and may be made of a flexible material such as plastic or resin material. The driving force of the motor is transferred to the gearbox 400 through the driving shaft 330 so that the gearbox 400 rotates along the lead screw 110.
  • the gearbox 400 is configured to include a body 400a, a protruding fixing part 410, a worm wheel 420, and a worm gear 430.
  • the body 400a is formed in a case shape and the worm wheel 420 and the worm gear 430 is rotatably inserted thereinto.
  • the protruding fixing par 410 may be formed to be protruded upward from the top surface of the body 400a.
  • Two protruding fixing parts 410 may be formed in a longitudinal direction of the lower rail 100.
  • the protruding fixing part 410 is fixed to contact the bottom surface of the fixing frame 323 while penetrating through the first through hole 210 of the upper rail 200. Therefore, the gear box 400 is configured so that the top surface of the body 400a is fixed while contacting the bottom surface of the upper rail 200 through the configuration of the protruding fixing part 410.
  • the worm wheel 420 is rotatably installed in the body 400a.
  • the worm wheel 420 is a cylindrical shape and is configured so that the inner peripheral surface thereof is inserted into the lead screw 110.
  • the inner peripheral surface of the worm wheel 420 is provided with an internal thread and when the worm wheel 420 is rotated, the gear box 400 rotates backward and forward along the lead screw 110.
  • the worm gear 430 is rotatably installed at the top side of the worm wheel 420 so that it is orthogonal to the gear formed at the outer peripheral surface of the worm wheel 420.
  • the worm wheel 420 is fixed to the second fixing part 332 of the driving shaft 330 so that it is configured to be rotated by the rotation of the driving shaft 330.
  • the motor 310 is driven by the operation of the user, the driving shaft 330 is rotated and the worm wheel 420 rotates by the rotation of the worm gear 430 in the gear box 400 according to the rotation of the driving shaft 330, such that the gear box 400 rotates backward and forward along the lead screw 110. Further, the upper rail 200 to which the gear box 400 is fixed rotates backward and forward along the lower rail 100 by the rotation of the gear box 400.
  • the present invention is to keep the driving shaft 330 and the lead screw 110 in a right angle at all times by directly connecting the support frame 320 to the gear box400.
  • the driving shaft 330 and the lead screw 110 are kept in a right angle at all times, the occurrence of the connection and the vibration can be remarkably reduced at the time of driving the upper rail 200.
  • the coupling surface where the top surface of the upper rail 200 contacts the bottom surface of the fixing frame 323 may be inserted with the buffer member 500 made of an elastic material.
  • the buffer member 500 may be formed with a second through hole 510 through which the protruding fixing part 410 penetrates. The present invention prevents the vibration and impact transferred from the support frame 320 through the buffer member 500 from being transferred to the upper rail 200, thereby making it possible to comfortably control the sheet.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

Provided is a power seat track for a motor vehicle capable of being controlled backward and forward, and more particularly, a structure of a power seat track for a motor vehicle capable of directly fastening a motor driver supporting a motor and a motor driving shaft to a gearbox to prevent joint and vibration atthetime of driving the seat track. As set forth above, the structure of a power seat track for a motor vehicle according to the present invention keeps the angles of the motor driving shaft and the lead screw in a vertical state at all times during the assembling process of the seat track to prevent the joint and vibration from being generated at the time of driving the seat track, thereby making it possible to pleasantly control the seat.

Description

STRUCTURE OF POWER SEAT TRACK FOR MOTOR VEHICLE
The present invention relates to a power seat track for a motor vehicle capable of being controlled backward and forward, and more particularly, to a structure of a power seat track for a motor vehicle capable of directly fastening a motor driver supporting a motor and a motor driving shaft to a gear box to prevent joint and vibration at the time of driving the seat track.
Generally, a seat for a motor vehicle is used to keep a sitting posture of a passenger in an optimal state. The seat is configured to include a seat back supporting an upper body of a passenger, a seat cushion supporting a lower body, for example, a hip and a thigh of a passenger, or the like.
A seat for a motor vehicle is installed to slidably move forward and backward by a predetermined distance with respect to a car body in order to meet a body shape of a passenger and efficiently use an interior space, which can be implemented by the seat track.
Generally, the sheet track is configured to include a lower rail fixedly installed on a floor panel in a longitudinal direction of a car body and an upper rail combined with the sheet cushion while being combined to slidably move along the lower rail.
A method for sliding the upper rail is classified into a manual driving method and a motor driving method.
In the motor driving method, power is supplied from a battery to a motor by a switch operation of a user to drive the motor and an upper rail is slid backward and forward along a lower rail by the driving of the motor, such that a sheet of a motor vehicle can move by a predetermined distance in a forward and backward direction of a car body. As a result, the interior space can be efficiently used and the passenger on a seat can maintain a good ride comfort. In addition, the sheet can more conveniently move backward and forward in contrast to the manual scheme, such that it can be more finely controlled.
Describing a power sheet track with reference to FIGS. 1 and 2, the power sheet track is generally configured to include a lower rail 100 fixedly installed on a floor panel of a motor vehicle in a longitudinal direction of a car body, an upper rail 200 combined with a sheet cushion while being combined to slidably move along the lower rail 100, a motor driver 300 for sliding the upper rail 200, and a gearbox 400 rotating backward and forward along a lead screw 110 installed on the lower rail 100 by the driving of the motor driver 300 to slide the upper rail 200.
The motor driver 300 is configured to include a motor 310, a driving shaft 330 of the motor, and a support frame 320 supporting the motor 310 and the driving shaft 330.
The gearbox 400 includes a worm gear 430 and a worm wheel 420 and if the worm gear 430 connected to the driving shaft 330 rotates, the gearbox 400 rotates backward and forward by the rotation of the worm wheel 420 inserted into the lead screw 110
The power seat track having the above-mentioned configuration is smoothly operated when the motor driving shaft and the lead screw are exactly vertical to each other. On the other hand, the joint and vibration occur at the time of driving the seat track when the angles of the motor driving shaft and the lead screw are not vertical to each other.
However, since the support frame of the motor driver is fixed to the upper rail, the motor support plate and the upper rail are not exactly vertical to each other during the assembling process thereof and thus, the angles thereof are deviated from each other, such that the angles of the motor driving shaft and the lead screw are not vertical to each other. As a result, the power seat track according to the related art leads to the joint and vibration.
An object of the present invention is to provide a structure of a power seat track for a motor vehicle directly fixing a support frame of a motor driver to a gearbox without separate additional components to keep angles of a motor driving shaft and a lead screw in a vertical state at all times.
In one general aspect, a structure of a power seat track includes: a lower rail 100 fixing to a bottom surface in a motor vehicle and fixedly installed with a lead screw 110 along a longitudinal direction; an upper rail 200 fixedly mounted at a bottom surface of a seat of a motor vehicle and inserted into the lower rail 100 to be slide in a longitudinal direction of the lower rail 100; a gear box 400 fixed to be inserted into the upper rail 200 and including a worm wheel 420 inserted into the lead screw 110 and a worm gear 430 connected to be orthogonal to the worm wheel 420; and a motor driver 300 including a motor 310, a driving shaft 330 of which one end is connected to the motor 310 and the other end is connected to the worm gear 430, and a support frame 320 supporting the motor 310 and the driving shaft 330, wherein the gear box 400 is provided with at least one protruding fixing part 410 protruded upwardly and the protruding fixing part 410 is fixed to be combined with the end of the support frame 320.
The protruding fixing part 410 may penetrate through a first through hole 210 formed at the upper rail 200 and be combined at the bottom surface of the fixing frame 323 formed at both ends of the support frame 320, such that the top end of the gearbox 400 contacts the bottom surface of the upper rail 200 and the bottom surface of the fixing frame 323 contacts the top surface of the upper rail 200 to fix the gearbox 400 to the upper rail 200.
A coupling surface where the top surface of the upper rail 200 contacts the bottom surface of the fixing frame 323 may be inserted with a buffer member 500 made of an elastic material.
The driving shaft 330 may be made of a flexible material.
As set forth above, the structure of a power seat track for a motor vehicle according to the present invention keeps the angles of the motor driving shaft and the lead screw in a vertical state at all times during the assembling process of the seat track to prevent the joint and vibration from being generated at the time of driving the seat track, thereby making it possible to easily control the seat.
The above and other objects, features and advantages of the present invention will become apparent from the following description of preferred embodiments given in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view showing a structure of a power sheet track of the present invention;
FIG. 2 is a perspective view of a gear box and a lead screw of the present invention; and
FIG. 3 is an exploded perspective view showing a structure of a power sheet track of the present invention;
[Detailed Description of Main Elements]
100: lower rail 110: lead screw
120: first fixing block 130: second fixing block
200: upper rail 210: first through hole
300: motor driver 310: motor
320: support frame 321: motor support frame
322: wing frame 323: fixing frame
330: driving shaft 331: first fixing part
332: second fixing part
400: gear box 400a: body
410: protruding fixing part 420: worm wheel
430: worm gear
500: buffer member 510: second through hole
A sheet of a motor vehicle is configured to include a seat back supporting an upper body of a passenger, a seat cushion supporting a lower body, for example, a hip and a thigh, or the like.
A seat of a motor vehicle is installed to slidably move by a predetermined distance in a forward and backward direction of a car body in order to meet a body type of a passenger and efficiently use an interior space. It is a sheet track that performs the above-mentioned function. In particular, in order to promote the convenience of a user, it is a power sheet track that can adjust a sheet backward and forward by driving a motor by only a simple switch operation.
Hereinafter, the foregoing exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to FIGS. 1 and 2, a structure of a power sheet track of the present invention is configured to include a lower rail 100, an upper rail 200, a motor driver 300, and a gearbox 400.
The structure of the power seat track of the present invention has a structure in which all the components are symmetrical left and right and therefore, the exemplary embodiment will mainly describe the configuration of any one side.
As shown in FIG. 1, the structure of the power sheet track of the present invention is generally configured to include the lower rail 100 fixedly installed on a floor panel of a car in a longitudinal direction of a car body and an upper rail 200 combined with a sheet cushion while slidably moving along the lower rail 100. In addition, in order to smoothly slide the upper rail 200, a plurality of bearing members are installed to be inserted into a space between the lower rail 100 and the upper rail 200. The bearing member has a structure installed to be integrated with a retainer (not shown).
The lower rail 100 may be fixed to the bottom surface in the motor vehicle. The lower rail 100 may be formed backward and forward and longitudinally. Both sides of the cross section of the lower rail 100 may be formed to be extended upward based on the bottom surface thereof and are formed to be curved toward the center thereof. Both ends curved toward the center of the lower rail 100 may each be provided with a flange curved downward. The lower rail 100 may be provided with a lead screw 110 of which the outer peripheral surface is longitudinally formed with an external thread. One end of the lead screw 110 is combined with a first fixing block 120 and the other end thereof is combined with a second fixing block 130, such that it may be fixed to the lower rail 100. In other words, one end of the lead screw 110 is inserted into the side of the first fixing block 120 not to be rotated and the bottom surface thereof may be fixed to the bottom surface of the lower rail 100. Further, the other end of the lead screw 110 is inserted into the side of the second fixing block 130 not to be rotated and the bottom surface thereof may be fixed to the bottom surface of the lower rail 100. The method of fixing the lead screw 110 to the lower rail 100 is various, which is not a core of the present invention. Therefore, the detailed description thereof will be omitted.
The upper rail 200 may fixedly be mounted on the bottom surface of the sheet for the motor vehicle. The upper rail 200 may be formed backward and forward and longitudinally to be able to be slid in a longitudinal direction of the lower rail 100, while being inserted into the lower rail 100. The top surface of the upper rail 200 is provided with a first through hole 210 to penetrate through the top surface thereof for combining with the gear box400. The first through hole 210 may be provided in at least one, that is, in plural, but the present invention may be formed in two. The first through hole 210 is formed to correspond to a position in which the gear box 400 is inserted into the upper rail 200.
The upper rail 200 is slid along the lower rail 100 by the rotation of the inserted gearbox 400 backward and forward and the configuration thereof will be described in the configuration of the gearbox 400 to be described below.
The motor driver 300 is a component transferring the force of the motor driven by the power supply of the battery to the gear box 400 and is configured to include a motor 310, a support frame 320, and a driving shaft 330.
As the motor 310, a general DC motor driven by being supplied with DC voltage may be used. The support frame 320 is configured to include a wing frame 322 into which the motor support frame 321 seated with the motor 310 and the driving shaft 330 are inserted and a fixing frame 323 formed at the end of the wing frame 322 and combined with the gearbox 400. The support frame 320 may be made of an injection product, not a metal material. This is to reduce the weight of the seat track. The bottom surface of the fixing frame 323 is formed with a seating groove 323a so that the top end of the gearbox 400 is seated thereon and is provided with a gearbox fixing hole 323b to be fixed by fastening the top end of the gearbox 400 by a bolt. The fixing part 331 formed at one end of the driving shaft 330 may be connected to the motor 310 and a second fixing part 332 formed at the other end thereof may be connected to the gear box 400. The driving shaft 330 is inserted into the wing frame 322 and may be made of a flexible material such as plastic or resin material. The driving force of the motor is transferred to the gearbox 400 through the driving shaft 330 so that the gearbox 400 rotates along the lead screw 110.
The gearbox 400 is configured to include a body 400a, a protruding fixing part 410, a worm wheel 420, and a worm gear 430.
The body 400a is formed in a case shape and the worm wheel 420 and the worm gear 430 is rotatably inserted thereinto. The protruding fixing par 410 may be formed to be protruded upward from the top surface of the body 400a. Two protruding fixing parts 410 may be formed in a longitudinal direction of the lower rail 100. The protruding fixing part 410 is fixed to contact the bottom surface of the fixing frame 323 while penetrating through the first through hole 210 of the upper rail 200. Therefore, the gear box 400 is configured so that the top surface of the body 400a is fixed while contacting the bottom surface of the upper rail 200 through the configuration of the protruding fixing part 410.
The worm wheel 420 is rotatably installed in the body 400a. The worm wheel 420 is a cylindrical shape and is configured so that the inner peripheral surface thereof is inserted into the lead screw 110. The inner peripheral surface of the worm wheel 420 is provided with an internal thread and when the worm wheel 420 is rotated, the gear box 400 rotates backward and forward along the lead screw 110. The worm gear 430 is rotatably installed at the top side of the worm wheel 420 so that it is orthogonal to the gear formed at the outer peripheral surface of the worm wheel 420. The worm wheel 420 is fixed to the second fixing part 332 of the driving shaft 330 so that it is configured to be rotated by the rotation of the driving shaft 330.
Therefore, if the motor 310 is driven by the operation of the user, the driving shaft 330 is rotated and the worm wheel 420 rotates by the rotation of the worm gear 430 in the gear box 400 according to the rotation of the driving shaft 330, such that the gear box 400 rotates backward and forward along the lead screw 110. Further, the upper rail 200 to which the gear box 400 is fixed rotates backward and forward along the lower rail 100 by the rotation of the gear box 400.
The present invention is to keep the driving shaft 330 and the lead screw 110 in a right angle at all times by directly connecting the support frame 320 to the gear box400. When the driving shaft 330 and the lead screw 110 are kept in a right angle at all times, the occurrence of the connection and the vibration can be remarkably reduced at the time of driving the upper rail 200.
In addition, the coupling surface where the top surface of the upper rail 200 contacts the bottom surface of the fixing frame 323 may be inserted with the buffer member 500 made of an elastic material. The buffer member 500 may be formed with a second through hole 510 through which the protruding fixing part 410 penetrates. The present invention prevents the vibration and impact transferred from the support frame 320 through the buffer member 500 from being transferred to the upper rail 200, thereby making it possible to comfortably control the sheet.
The present invention is not limited to the embodiment described herein and it should be understood that the present invention may be modified and changed in various ways without departing from the spirit and the scope of the present invention. Therefore, it should be appreciated that the modifications and changes are included in the claims of the present invention.

Claims (4)

  1. A structure of a power seat track, comprising:
    a lower rail 100 fixing to a bottom surface in a motor vehicle and fixedly installed with a lead screw 110 along a longitudinal direction;
    an upper rail 200 fixedly mounted at a bottom surface of a seat of a motor vehicle and inserted into the lower rail 100 to be slid in a longitudinal direction of the lower rail 100;
    a gearbox 400 fixed to be inserted into the upper rail 200 and including a worm wheel 420 inserted into the lead screw 110 and a worm gear 430 connected to be orthogonal to the worm wheel 420; and
    a motor driver 300 including a motor 310, a driving shaft 330 of which one end is connected to the motor 310 and the other end is connected to the worm gear 430, and a support frame 320 supporting the motor 310 and the driving shaft 330,
    wherein the gear box 400 is provided with at least one protruding fixing part 410 protruded upwardly and the protruding fixing part 410 is fixed to be combined with the end of the support frame 320.
  2. The structure of a power seat track of claim 1, wherein the protruding fixing part 410 penetrates through a first through hole 210 formed at the upper rail 200 and is combined at the bottom surface of the fixing frame 323 formed at both ends of the support frame 320, such that the top end of the gearbox 400 contacts the bottom surface of the upper rail 200 and the bottom surface of the fixing frame 323 contacts the top surface of the upper rail 200 to fix the gearbox 400 to the upper rail 200.
  3. The structure of a power seat track of claim 1, wherein a coupling surface where the top surface of the upper rail 200 contacts the bottom surface of the fixing frame 323 is inserted with a buffer member 500 made of an elastic material.
  4. The structure of a power seat track of claim 1, wherein the driving shaft 330 is made of a flexible material.
PCT/KR2010/008668 2010-07-06 2010-12-06 Structure of power seat track for motor vehicle WO2012005416A1 (en)

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FR3001667A1 (en) * 2013-02-07 2014-08-08 Faurecia Sieges Automobile Slide assembly for seat of automobile, has elastic leg extending according to transverse direction, and tenon that is encased in mobile section of one of slides, where elastic leg is in elastic support on mobile section
WO2014124908A1 (en) * 2013-02-13 2014-08-21 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Adjusting system for a vehicle seat
CN104228616A (en) * 2013-06-20 2014-12-24 丰田纺织株式会社 Power sliding apparatus of conveyance seat
JP2015067171A (en) * 2013-09-30 2015-04-13 トヨタ紡織株式会社 Vehicle seat
CN105857124A (en) * 2016-05-27 2016-08-17 常州嘉盈车辆部件有限公司 Motor fixing installing frame for electric slide rail
CN105966271A (en) * 2016-05-27 2016-09-28 常州嘉盈车辆部件有限公司 Electric sliding rail for car seat
WO2018056335A1 (en) * 2016-09-26 2018-03-29 デルタ工業株式会社 Power seat sliding apparatus
CN116039461A (en) * 2022-12-21 2023-05-02 中国第一汽车股份有限公司 Sliding mechanism of seat, working method and automobile
US11772517B2 (en) 2020-11-09 2023-10-03 Ford Global Technologies, Llc Vehicular system capable of adjusting a passenger compartment from a child seat arrangement to a second arrangement
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CN103085682A (en) * 2012-12-17 2013-05-08 湖北中航精机科技股份有限公司 Sliding rail and seat
CN103085682B (en) * 2012-12-17 2015-06-10 湖北中航精机科技有限公司 Sliding rail and seat
FR3001667A1 (en) * 2013-02-07 2014-08-08 Faurecia Sieges Automobile Slide assembly for seat of automobile, has elastic leg extending according to transverse direction, and tenon that is encased in mobile section of one of slides, where elastic leg is in elastic support on mobile section
WO2014124908A1 (en) * 2013-02-13 2014-08-21 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Adjusting system for a vehicle seat
US10059227B2 (en) 2013-02-13 2018-08-28 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Adjusting system for a vehicle seat
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US9315118B2 (en) 2013-06-20 2016-04-19 Toyota Boshoku Kabushiki Kaisha Power sliding apparatus of conveyance seat
CN104228616A (en) * 2013-06-20 2014-12-24 丰田纺织株式会社 Power sliding apparatus of conveyance seat
JP2015067171A (en) * 2013-09-30 2015-04-13 トヨタ紡織株式会社 Vehicle seat
US9597980B2 (en) 2013-09-30 2017-03-21 Toyota Boshoku Kabushiki Kaisha Conveyance seat
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CN105857124A (en) * 2016-05-27 2016-08-17 常州嘉盈车辆部件有限公司 Motor fixing installing frame for electric slide rail
CN105966271A (en) * 2016-05-27 2016-09-28 常州嘉盈车辆部件有限公司 Electric sliding rail for car seat
WO2018056335A1 (en) * 2016-09-26 2018-03-29 デルタ工業株式会社 Power seat sliding apparatus
US10737588B2 (en) 2016-09-26 2020-08-11 Delta Kogyo Co., Ltd. Power seat slide device
US11772517B2 (en) 2020-11-09 2023-10-03 Ford Global Technologies, Llc Vehicular system capable of adjusting a passenger compartment from a child seat arrangement to a second arrangement
US11904732B2 (en) 2020-11-09 2024-02-20 Ford Global Technologies, Llc Vehicular system capable of adjusting a passenger compartment from a first arrangement to a child care arrangement
CN116039461A (en) * 2022-12-21 2023-05-02 中国第一汽车股份有限公司 Sliding mechanism of seat, working method and automobile

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