CN112238795A - Slide rail for vehicle seat - Google Patents

Slide rail for vehicle seat Download PDF

Info

Publication number
CN112238795A
CN112238795A CN202010660930.5A CN202010660930A CN112238795A CN 112238795 A CN112238795 A CN 112238795A CN 202010660930 A CN202010660930 A CN 202010660930A CN 112238795 A CN112238795 A CN 112238795A
Authority
CN
China
Prior art keywords
lower rail
rail
bracket
fastener
seat
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN202010660930.5A
Other languages
Chinese (zh)
Other versions
CN112238795B (en
Inventor
濑古昌大
广濑敦之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Boshoku Corp
Original Assignee
Toyota Boshoku Corp
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 Toyota Boshoku Corp filed Critical Toyota Boshoku Corp
Publication of CN112238795A publication Critical patent/CN112238795A/en
Application granted granted Critical
Publication of CN112238795B publication Critical patent/CN112238795B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B60N2/07—Slide construction
    • 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
    • B60N2/07—Slide construction
    • B60N2/0722—Constructive details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D33/00—Seats
    • B61D33/0007—Details; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D33/00—Seats
    • B61D33/0057—Seats characterised by their mounting in vehicles
    • B61D33/0078—Seats characterised by their mounting in vehicles adjustably mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/02—Cabins or other living spaces; Construction or arrangement thereof
    • B63B29/04—Furniture peculiar to vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0639—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with features for adjustment or converting of seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/02—Cabins or other living spaces; Construction or arrangement thereof
    • B63B29/04—Furniture peculiar to vessels
    • B63B2029/043—Seats; Arrangements thereof on vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention provides a slide rail for a vehicle seat. A slide rail for a vehicle seat is provided with a lower rail, an upper rail, a bracket, and a fastener. The lower rail has a moving path on an inner side for sliding movement of the upper rail, and the fastener has a protrusion protruding toward the moving path. An insertion hole is provided in a portion of a wall portion of the lower rail defining the moving path, which overlaps the protruding portion in the sliding movement direction of the upper rail, and a slope portion is provided in the bracket. The slope portion is disposed so as to protrude toward the movement path by being inserted through the insertion hole, and the inclined surface provided to the slope portion is positioned so as to be apart from the wall portion as it approaches the protrusion portion side.

Description

Slide rail for vehicle seat
Technical Field
The present disclosure relates to a slide rail for a vehicle seat (hereinafter, also simply referred to as "slide rail") used in a vehicle seat provided in a vehicle such as an automobile.
Background
In general, a slide rail is often attached to a vehicle seat. The slide rail includes a lower rail fixed to a floor of the vehicle and an upper rail supporting the vehicle seat, and the vehicle seat can be moved exclusively in the front-rear direction by assembling the upper rail to be slidable with respect to the lower rail.
In general, a slide rail is provided with a travel path for sliding movement of an upper rail on the inner side of a lower rail. Since the moving path is exposed on the upper surface side of the slide rail, there is room for foreign matter (for example, a portable article dropped by a passenger) to enter the moving path.
On the other hand, various brackets are sometimes assembled to the lower rail. Examples of the bracket include a wire harness bracket for holding a wire harness, a motor bracket for supporting a motor, a leg bracket constituting a leg portion of a slide rail, and a leg cover bracket for supporting a resin cover for covering the leg portion. These brackets are often fixed to the lower rail using a fastener, and in this case, a head portion of the fastener or the like may be disposed so as to protrude toward the moving path.
Therefore, when foreign matter enters the moving path, there is a possibility that foreign matter is caught between the end surface of the upper rail in the sliding movement direction and the head portion of the fastener, and when the catching of the foreign matter occurs, the sliding movement of the vehicle seat is hindered.
Therefore, conventionally, various foreign matter discharge mechanisms have been proposed to be provided to the slide rail, and for example, japanese patent application laid-open No. 2013-52841 discloses a slide rail in which the above-described problem is solved by sandwiching an independent foreign matter discharge plate-like member between the leg bracket and the lower rail.
More specifically, in the slide rail disclosed in the above-mentioned publication, an insertion hole is provided in the bottom portion of the lower rail so as to be adjacent to a portion where the head portion of the fastener for fixing the leg rest is disposed, a slope-shaped cut-and-raised portion is provided in the plate-like member for foreign matter discharge disposed between the leg rest and the lower rail, the cut-and-raised portion is inserted into the insertion hole and projected toward the moving path, and the lower rail, the leg rest, and the plate-like member for foreign matter discharge are fastened using the fastener.
With this configuration, in the slide rail disclosed in the above-mentioned publication, the slope-shaped cut-and-raised portion is disposed between the end surface of the upper rail in the sliding movement direction and the head portion of the fastener, and the foreign object pushed by the end surface of the upper rail passes over the cut-and-raised portion and also passes over the head portion of the fastener, thereby preventing the foreign object from being caught in advance.
Disclosure of Invention
However, the slide rail disclosed in the above publication requires plate-like members for discharging foreign matter in addition to the lower rail and the bracket, and not only the number of components increases and the manufacturing cost increases, but also the assembly work becomes complicated, which also causes a problem of an increase in the manufacturing cost.
In view of the above-described problems, it is an object of the present disclosure to reduce the number of components and facilitate assembly work in a slide rail for a vehicle seat provided with a foreign matter discharge mechanism capable of discharging foreign matter entering a lower rail.
A slide rail for a vehicle seat according to an aspect of the present disclosure includes: a lower rail fixed to a floor of a vehicle; an upper rail that is assembled to the lower rail so as to be slidable and that supports a vehicle seat; a bracket assembled to the lower rail; and a fastener for fixing the bracket to the lower rail, the lower rail having a moving path on an inner side thereof for the upper rail to slidably move, a fixing hole for inserting the fastener is provided in a wall portion of the lower rail defining the moving path, the bracket is fixed to the lower rail by the fastener in a state of being in contact with an outer surface of the wall portion of the portion where the fixing hole is provided, the fastener has a protrusion portion protruding toward the moving path by being inserted into the fixing hole, an insertion hole is provided in a portion of the wall portion that overlaps the projection portion in the sliding movement direction of the upper rail, the bracket has a slope part provided with an inclined surface inclined from the root side to the front end side, the slope part is configured in a mode of protruding to the moving path by inserting to the insertion hole, and the inclined surface is positioned so as to be apart from the wall portion as the inclined surface approaches the protruding portion side.
The above and other objects, features, aspects and advantages of the present invention should become apparent from the following detailed description, which is to be read in connection with the accompanying drawings.
Drawings
Fig. 1 is a perspective view illustrating a first state of a slide rail of an embodiment.
Fig. 2 is a perspective view illustrating a second state of the slide rail shown in fig. 1.
Fig. 3 is a schematic end view along the line III-III shown in fig. 1.
Fig. 4 is an exploded perspective view illustrating an assembled configuration of the slide rail shown in fig. 1.
Fig. 5 is an enlarged perspective view of a main part of the slide rail shown in fig. 1.
Fig. 6 is a schematic sectional view taken along line VI-VI shown in fig. 5.
Fig. 7 is a schematic cross-sectional view illustrating a discharging operation in the slide rail shown in fig. 1.
Fig. 8 is a schematic sectional view showing an assembly sequence of the carriage in the slide rail shown in fig. 1.
Detailed Description
Hereinafter, embodiments will be described in detail with reference to the drawings. The embodiments described below exemplify a case where the characteristic structure of the present disclosure is applied to a slide rail for a vehicle seat attached to a vehicle seat configured as a seat of an automobile. In the embodiments described below, the same or common portions are denoted by the same reference numerals in the drawings, and the description thereof will not be repeated.
In the drawings, when viewed from an occupant seated in a vehicle seat, the seat front direction and the seat rear direction are indicated as the X1 direction and the X2 direction, the seat left direction and the seat right direction are indicated as the Y1 direction and the Y2 direction, and the seat up direction and the seat down direction are indicated as the Z1 direction and the Z2 direction, respectively. In the following description, an axis coinciding with the seat front direction X1 and the seat rear direction X2 is referred to as an X axis, an axis coinciding with the seat left direction Y1 and the seat right direction Y2 is referred to as a Y axis, and an axis coinciding with the seat up direction Z1 and the seat down direction Z2 is referred to as a Z axis.
Fig. 1 and 2 are perspective views showing a first state and a second state of the slide rail according to the embodiment, respectively, and fig. 3 is a schematic end view taken along the line III-III shown in fig. 1. Fig. 4 is an exploded perspective view showing an assembled structure of the slide rail according to the embodiment. First, a schematic structure of the slide rail 1 according to the present embodiment will be described with reference to fig. 1 to 4.
Here, the first state shown in fig. 1 is a state in which the upper rail 20 described later is slid to the maximum extent in the seat rear direction (i.e., the X2 direction) with respect to the lower rail 10 described later, and the second state shown in fig. 2 is a state in which the upper rail 20 is slid to the maximum extent in the seat front direction (i.e., the X1 direction) with respect to the lower rail 10. In fig. 1 to 4, only the main components of the slide rail 1 according to the present embodiment are extracted and shown.
As shown in fig. 1 to 3, the slide rail 1 mainly includes: lower rail 10, upper rail 20, first rolling element 31, second rolling element 32, bracket 40, fastener 50 (see fig. 4 and the like), front leg 60, and rear leg 70.
The lower rail 10 is formed of a press-formed member formed by press-working a metal plate-like member or the like, and has an elongated outer shape extending in the seat front-rear direction (i.e., the X-axis direction). The lower rail 10 has: the seat cushion includes a bottom wall portion 11, a pair of left and right outer wall portions 12, a pair of left and right upper wall portions 13, and a pair of left and right inner wall portions 14, and these bottom wall portion 11, the pair of outer wall portions 12, the pair of upper wall portions 13, and the pair of inner wall portions 14 extend in the seat front-rear direction.
The bottom wall portion 11 is a portion disposed on the floor side of the vehicle, and has a flat plate shape. The pair of outer wall portions 12 are erected in the seat up direction (i.e., Z1 direction) from both end portions of the bottom wall portion 11 positioned in the seat left-right direction (i.e., Y axis direction), and each has a plate shape in which a portion near a lower end is bent and a portion near an upper end is formed in a flat plate shape.
The pair of upper wall portions 13 are erected inward in the seat left-right direction (i.e., Y-axis direction) from the end portions of the pair of outer wall portions 12 in the seat up direction (i.e., Z1 direction), and each have a flat plate shape. The pair of inner wall portions 14 are erected from the inner end portions of the pair of upper wall portions 13 in the seat left-right direction (i.e., the Y-axis direction) toward the seat bottom direction (i.e., the Z2 direction), and each have a flat plate shape.
Thus, a movement path 15 for slidably moving the upper rail 20 is provided on the inner side of the lower rail 10 so as to extend in the seat front-rear direction (i.e., the X-axis direction), and the movement path 15 is defined by the inner surface of the bottom wall portion 11, the inner surfaces of the pair of outer wall portions 12, the inner surfaces of the pair of upper wall portions 13, and the inner surfaces and the outer surfaces of the pair of inner wall portions 14.
Further, a front leg 60 and a rear leg 70 are assembled to a front end (i.e., an end located in the X1 direction) and a rear end 10a (i.e., an end located in the X2 direction) of the lower rail 10. The front leg portion 60 and the rear leg portion 70 are members for fixing the lower rail 10 to the floor of the vehicle, and are formed by press-forming a metal plate-like member by press working or the like.
The upper rail 20 is formed of a press-formed member formed by press-working a metal plate-like member or the like, and has an elongated outer shape extending in the seat front-rear direction (i.e., the X-axis direction). The upper rail 20 has: the seat back structure includes a top plate portion 21, a pair of left and right side plate portions 22, a pair of left and right first standing portions 23, and a pair of left and right second standing portions 24, and these top plate portion 21, pair of side plate portions 22, pair of first standing portions 23, and pair of second standing portions 24 extend in the seat back-and-forth direction.
The top plate 21 is a portion for supporting the vehicle seat, and has a flat plate shape. The pair of side plate portions 22 are erected from both end portions of the top plate portion 21 positioned in the seat left-right direction (i.e., the Y-axis direction) toward the seat bottom direction (i.e., the Z2 direction), and each have a flat plate shape.
The pair of first standing portions 23 are respectively standing from the ends in the under-seat direction (i.e., the Z2 direction) of the pair of side plate portions 22 toward the outside in the seat left-right direction (i.e., the Y-axis direction), and each have a curved plate-like shape. The pair of second upright portions 24 are respectively erected from the outer side end portions in the seat left-right direction (i.e., Y-axis direction) of the pair of first upright portions 23 toward the seat up direction (i.e., Z1 direction), and each have a curved plate-like shape.
The upper rail 20 configured as described above is disposed on the moving path 15 provided inside the lower rail 10. Thereby, the upper rail 20 is configured to be slidable with respect to the lower rail 10 along the extending direction (i.e., the X-axis direction) of the moving path 15.
More specifically, the first standing portion 23 and the second standing portion 24 of the upper rail 20 located on one side in the seat left-right direction (i.e., the Y-axis direction) are housed in a space surrounded by the outer wall portion 12, the upper wall portion 13, and the inner wall portion 14 of the lower rail 10 located on the one side in the seat left-right direction, and the first standing portion 23 and the second standing portion 24 of the upper rail 20 located on the other side in the seat left-right direction are housed in a space surrounded by the outer wall portion 12, the upper wall portion 13, and the inner wall portion 14 of the lower rail 10 located on the other side in the seat left-right direction. The pair of side plate portions 22 of the upper rail 20 are accommodated between the pair of inner wall portions 14 of the lower rail 10 in the seat left-right direction.
Therefore, as shown in fig. 1, the upper rail 20 is assembled to be slidable relative to the lower rail 10 without falling off from the lower rail 10 between the first state in which the portion closer to the rear end (i.e., the end located in the X2 direction) is pushed out toward the seat rear direction (i.e., the X2 direction) from the rear end 10a of the lower rail 10 and further movement toward the seat rear direction is restricted, and the second state in which the portion closer to the front end (i.e., the end located in the X1 direction) is pushed out toward the seat front direction (i.e., the X1 direction) from the front end (i.e., the end located in the X1 direction) of the lower rail 10 and further movement toward the seat front direction is restricted, as shown in fig. 2.
Here, in order to improve the slidability of the upper rail 20 with respect to the lower rail 10, the first rolling elements 31 and the second rolling elements 32 are interposed at a plurality of positions in the seat front-rear direction (i.e., the X-axis direction) between the lower rail 10 and the upper rail 20. These first rolling elements 31 and second rolling elements 32 are rollably supported by a cage, not shown in fig. 3, and are fixed to the lower rail 10 by the cage, and are assembled to the lower rail 10.
The first rolling elements 31 are disposed so as to be in contact with the lower end portion of the outer wall portion 12 of the lower rail 10 and the first upright portion 23 of the upper rail 20, and the second rolling elements 32 are disposed so as to be in contact with the upper wall portion 13 and the inner wall portion 14 of the lower rail 10 and the second upright portion 24 of the upper rail 20.
A cap 25 made of resin or rubber is attached to a rear end portion (i.e., an end portion located in the X2 direction) of the upper rail 20. The cap 25 covers the rear end portion of the upper rail 20 made of a metal member for safety, and the cap 25 defines the rear end face 20a of the upper rail 20.
The bracket 40 is a press-formed member formed by press-working a metal plate member, and in the present embodiment, is a so-called wire harness bracket for holding a wire harness. The bracket 40 includes a base 41, and a fixed portion 42 and a holding portion 43 extending from the base 41.
The fixed portion 42 is a portion for fixing the bracket 40 to the lower rail 10. The upper surface of the fixed portion 42 abuts against the outer side surface of the bottom wall portion 11 of the lower rail 10, and the fixed portion 42 is fixed to the lower rail 10 by a fastener 50 (see fig. 4 and the like) as will be described in detail later.
The holding portion 43 is a portion for holding the wire harness using a not-shown binding tape or the like. The holding portion 43 extends from the base portion 41 to one side in the seat left-right direction (i.e., the Y-axis direction) (generally, the lower side of the seat cushion of the vehicle seat), and thereby can hold the wire harness arranged around the vehicle seat at the side of the slide rail 1.
The bracket 40 is assembled to the rear end 10a of the center portion of the lower rail 10 in the front-rear direction, more specifically, to the rear seat rear direction (i.e., the X2 direction) side of the center portion and to the front seat front direction (i.e., the X1 direction) side of the rear leg portion 70 of the lower rail 10.
As shown in fig. 4, a fixing hole 44 having a through hole shape and a slope 45 are provided in the fixed portion 42 of the bracket 40. The fixing hole 44 and the slope portion 45 are positioned adjacent to each other along the seat front-rear direction (i.e., the X-axis direction). The slope portion 45 is formed by bending a tongue-shaped portion provided at the edge portion of the bracket 40, and the tip end thereof is positioned in the seat up direction (i.e., the Z1 direction) with respect to the fixed portion 42 of the bracket 40. The slope portion 45 formed of a tongue-shaped portion has an inclined surface 45a inclined from the root side to the tip side at the upper end portion thereof (see fig. 5 and the like).
On the other hand, a fixing hole 16 having a through hole shape and an insertion hole 17 having a through hole shape are provided at a predetermined position of the bottom wall portion 11 in a portion of the lower rail 10 constituting the moving path 15, corresponding to the fixing hole 44 and the slope portion 45 provided in the bracket 40.
The fixing hole 44 provided in the fixed portion 42 of the bracket 40 and the fixing hole 16 provided in the bottom wall portion 11 of the lower rail 10 are portions through which the fastening member 50 is inserted, and have a circular shape in plan view. On the other hand, the insertion hole 17 provided in the bottom wall portion 11 of the lower rail 10 is a portion through which the slope portion 45 provided in the fixed portion 42 of the bracket 40 is inserted, and has a racetrack shape in plan view (i.e., a long hole shape).
Here, as the fastener 50, a member including a bolt and a nut, a rivet, or the like can be used. The fastener 50 is inserted with its shaft portion into the fixing hole 44 and the fixing hole 16, and sandwiches the fixed portion 42 of the bracket 40 and the bottom wall portion 11 of the lower rail 10 with the head portions located at both ends of the shaft portion, thereby fixing the bracket 40 to the lower rail 10.
As shown in fig. 4, when the bracket 40 is assembled to the lower rail 10, the bracket 40 is fixed to the lower rail 10 using the fastener 50 in a state in which the fixed portion 42 of the bracket 40 is brought into contact with the outer surface of the bottom wall portion 11 of the portion where the fixing hole 16 is provided. At this time, the slope portion 45 provided in the bracket 40 is inserted into the insertion hole 17 provided in the lower rail 10, and the fixing hole 44 provided in the bracket 40 overlaps the fixing hole 16 provided in the lower rail 10.
By such an assembly, in the slide rail 1 of the present embodiment, the projection 51 (see fig. 5 and the like) which is a part of the fastener 50 for fixing the bracket 40 to the lower rail 10 is positioned so as to project toward the moving path 15 of the lower rail 10, and the slope 45 which is the foreign matter discharge means for discharging the foreign matter which has entered the lower rail 10 is positioned so as to project toward the moving path 15 in the vicinity of the projection 51. This prevents foreign matter that has entered the lower rail 10 from being caught between the rear end surface 20a of the upper rail 20 and the protruding portion 51 of the fastener 50.
This point will be described in detail below with reference to fig. 5 to 7. Fig. 5 is an enlarged perspective view of a main portion of the slide rail shown in fig. 1 (i.e., the vicinity of the slope portion as the foreign matter discharge mechanism). Fig. 6 is a schematic cross-sectional view taken along line VI-VI shown in fig. 5, and fig. 7 is a schematic cross-sectional view showing a discharge operation in the slide rail shown in fig. 1. In addition, the cross section shown in fig. 7 is a cross section of the slide rail 1 along the line VII-VII shown in fig. 5.
As shown in fig. 5 to 7, in the slide rail 1 of the present embodiment, with the above-described assembly structure, the shaft portion of the fastener 50 is inserted into the fixing hole 16 provided in the lower rail 10, and thereby, the head portion, which is a part of the fastener 50, is positioned so as to protrude toward the moving path 15 as the protruding portion 51.
On the other hand, in the slide rail 1 of the present embodiment, with the above-described assembly structure, the slope portion 45 formed by bending the tongue-shaped portion provided at the edge of the bracket 40 is inserted into the insertion hole 17 provided in the lower rail 10, and the slope portion 45 is positioned so as to protrude toward the moving path 15.
Here, as described above, the fixing hole 16 and the insertion hole 17 provided in the lower rail 10 are positioned adjacent to each other in the seat front-rear direction (i.e., the X-axis direction), and the fixing hole 44 and the slope portion 45 provided in the bracket 40 are also positioned adjacent to each other in the seat front-rear direction.
Therefore, the insertion hole 17 provided in the bottom wall portion 11 of the lower rail 10 is provided in a portion of the bottom wall portion 11 that overlaps with the protruding portion 51 of the fastener 50 in the sliding movement direction (i.e., the X-axis direction) of the upper rail 20, and thereby the slope portion 45 that is inserted through the insertion hole 17 and positioned so as to protrude toward the movement path 15 is also positioned so as to overlap with the protruding portion 51 of the fastener 50 in the sliding movement direction of the upper rail 20.
Further, as described above, the slope portion 45 is provided with the inclined surface 45a inclined as approaching the tip end side from the root portion side thereof, whereby the inclined surface 45a is positioned so as to be apart from the bottom wall portion 11 of the lower rail 10 as approaching the protruding portion 51 side of the fastener 50 from the insertion hole 17.
With such a configuration, in the slide rail 1 of the present embodiment, as shown in fig. 7(a), when the foreign object 100 enters the movement path 15 provided inside the lower rail 10, as shown in fig. 7(B) and 7(C), when the upper rail 20 slides in the arrow a direction (i.e., the seat rear direction X2) in the drawing, the foreign object 100 pushed by the rear end surface 20a of the upper rail 20 passes over the inclined surface 45a of the slope portion 45 and simultaneously passes over the protrusion 51 of the fastener 50, and then, the upper rail 20 slides in the arrow a direction in the drawing, and finally the foreign object 100 is discharged from the rear end portion 10a of the lower rail 10.
Therefore, by the slope portion 45 functioning as the foreign matter discharge means, it is possible to prevent the foreign matter 100 from being caught between the rear end surface 20a of the upper rail 20 and the protrusion 51 of the fastener 50, and as a result, it is possible to avoid the sliding movement of the vehicle seat from being hindered.
Fig. 8 is a schematic sectional view showing an assembly sequence of the carriage in the slide rail shown in fig. 1. Next, the procedure of assembling the bracket 40 to the lower rail 10 in the slide rail 1 according to the present embodiment will be described in more detail with reference to fig. 8.
As described above, in the slide rail 1 according to the present embodiment, the bracket 40 is assembled to the lower rail 10 by bringing the fixed portion 42 of the bracket 40 into contact with the outer surface of the bottom wall portion 11 of the portion where the fixing hole 16 is provided and fixing the bracket 40 to the lower rail 10 using the fastener 50 in this state. In this case, the insertion hole 17 provided in the lower rail 10 can be made small by adopting the assembly procedure described below.
First, as shown in fig. 8 a, the bracket 40 is disposed in an inclined posture so as to approach the bottom wall portion 11 of the lower rail 10 such that the rear end portion (i.e., the end portion located in the X2 direction) of the bracket 40 approaches the lower rail 10 and the front end portion (i.e., the end portion located in the X1 direction) of the bracket 40 is spaced apart from the lower rail 10. Here, in the present embodiment, since the bracket 40 is bent such that the base portion 41 of the bracket 40 is positioned on the seat lower direction (i.e., the Z2 direction) side with respect to the fixed portion 42, the rear end portion of the bracket 40 can take the inclined posture without interfering with the lower rail 10 in this state.
Next, the bracket 40 is moved in the direction of arrow B in the figure so that the slope portion 45 provided in the bracket 40 is inserted from the distal end side thereof into the insertion hole 17 provided in the bottom wall portion 11 of the lower rail 10, and the bracket 40 is rotated in the direction of arrow C in the figure so that the distal end portion of the bracket 40 approaches the bottom wall portion 11 of the lower rail 10. As a result, as shown in fig. 8(B), the slope portion 45 enters the moving path 15 provided inside the lower rail 10, and the fixed portion 42 is disposed close to the bottom wall portion 11.
Next, as shown in fig. 8(C), the upper surface of the fixed portion 42 is brought into contact with the outer surface of the bottom wall portion 11 of the lower rail 10, and in this state, the fixing hole 44 provided in the bracket 40 and the fixing hole 16 provided in the lower rail 10 are overlapped, and then the fastener 50 is further inserted into the fixing hole 44 and the fixing hole 16 in the direction of arrow D in the drawing. Then, the fastener 50 protruding to the portion of the travel path 15 is crushed, and the bracket 40 is fixed to the lower rail 10 by the fastener 50.
Through such an assembly procedure, the slope portion 45 is disposed so as to protrude toward the moving path 15 by being inserted through the insertion hole 17, and the inclined surface 45a of the slope portion 45 is positioned so as to be apart from the bottom wall portion 11 of the lower rail 10 as approaching the protruding portion 51 side.
Here, in the present embodiment, as described above, the bracket 40 is bent such that the base portion 41 of the bracket 40 is positioned on the seat lower direction (i.e., the Z2 direction) side with respect to the fixed portion 42, and the assembly procedure for assembling the bracket 40 to the lower rail 10 while rotating is adopted, so that the size of the insertion hole 17 in the seat front-rear direction can be significantly reduced as compared with the size of the slope portion 45 in the seat front-rear direction (i.e., the X-axis direction).
Therefore, in the present embodiment, when viewed in the normal direction of the inner surface of the bottom wall portion 11 of the lower rail 10 (i.e., the Z2 direction), the tip of the slope portion 45 overlaps the bottom wall portion 11 of the lower rail 10 at a portion between the fixing hole 16 and the insertion hole 17. By configuring the insertion hole 17 provided in the bottom wall portion 11 of the lower rail 10 to be small in this way, a decrease in strength of the lower rail 10 can be suppressed.
With the slide rail 1 according to the present embodiment described above, the slope portion 45 serving as the foreign matter discharge means for discharging the foreign matter 100 that has entered the moving path 15 of the lower rail 10 does not need to be configured by other components than the lower rail 10 and the bracket 40, and can be provided in the bracket 40 itself, so that the number of components can be reduced and the assembly work can be facilitated. Therefore, the manufacturing cost can be significantly reduced compared to the conventional one.
In the slide rail 1 of the present embodiment, the slope portion 45 is formed by bending the tongue-shaped portion provided at the edge portion of the bracket 40, so that the slope portion 45 can be easily formed by a part of the bracket 40, and further reduction in manufacturing cost can be achieved in this respect.
In the above-described embodiment, the description has been given by exemplifying the case where the characteristic structure of the present disclosure is applied to the wire harness bracket assembled to the lower rail, but the characteristic structure of the present disclosure can be applied to any bracket as long as it is assembled to the lower rail. For example, the characteristic structure of the present disclosure can be applied to a motor bracket, a leg bracket (i.e., a bracket constituting the front leg portion 60 and the rear leg portion 70), a leg cover bracket, and the like assembled to the lower rail.
In the above-described embodiment, the case where the foreign matter is discharged from the rear end portion side of the lower rail has been described as an example, but the foreign matter may be discharged from the front end portion side of the lower rail by changing the positional relationship between the protruding portion of the fastener and the slope portion of the bracket in the seat front-rear direction.
In the above-described embodiments, the description has been given by way of example of the case where the characteristic structure of the present disclosure is applied to the slide rail for vehicle seats attached to the vehicle seat configured as a seat of an automobile, but the characteristic structure of the present disclosure can also be applied to a slide rail for vehicle seats attached to a vehicle seat provided in a ship, an aircraft, a train, or the like.
The summary of the present disclosure described above will be as follows.
A slide rail for a vehicle seat according to an aspect of the present disclosure includes: a lower rail fixed to a floor of a vehicle; an upper rail that is assembled to the lower rail so as to be slidable and that supports a vehicle seat; a bracket assembled to the lower rail; and a fastener for fixing the bracket to the lower rail. The lower rail has a moving path on an inner side thereof for the upper rail to slidably move. A fixing hole through which the fastener is inserted is provided in a wall portion of the lower rail defining the moving path. The bracket is fixed to the lower rail by the fastener in a state of being in contact with an outer surface of the wall portion of the portion where the fixing hole is provided. The fastener has a protruding portion that protrudes into the moving path by being inserted into the fixing hole. An insertion hole is provided in a portion of the wall portion that overlaps the protruding portion in the sliding movement direction of the upper rail. The bracket has a slope portion provided with an inclined surface inclined from the root side to the tip side. The slope portion is disposed so as to protrude toward the moving path by being inserted into the insertion hole, and the inclined surface is positioned so as to be apart from the wall portion as the inclined surface approaches the protruding portion side.
With this configuration, since the slope portion serving as the foreign matter discharge mechanism for discharging the foreign matter entering the movement path of the lower rail is not required to be configured by other components than the lower rail and the bracket, and can be provided in the bracket itself, the number of components can be reduced and the assembly work can be facilitated, and as a result, the manufacturing cost can be reduced.
In the slide rail for a vehicle seat according to the above aspect of the present disclosure, it is preferable that the slope portion is formed by bending a tongue-shaped portion provided at an edge portion of the bracket.
With this configuration, the slope portion can be easily formed by a part of the bracket, and thus further reduction in manufacturing cost can be achieved.
In the slide rail for a vehicle seat according to the above aspect of the present disclosure, it is preferable that a front end of the slope portion overlaps with the wall portion at a portion between the fixing hole and the insertion hole when viewed in a normal direction of an inner surface of the wall portion.
With this configuration, the insertion hole provided in the lower rail for inserting the slope portion can be made small, and a decrease in the strength of the lower rail can be suppressed.
While the embodiments of the present invention have been described, the embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the claims, and all changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein.

Claims (3)

1. A slide rail for a vehicle seat is provided with:
a lower rail fixed to a floor of a vehicle;
an upper rail assembled in a slidably movable manner with respect to the lower rail and supporting a vehicle seat;
a bracket assembled to the lower rail; and
a fastener for fixing the bracket to the lower rail,
the lower rail has a moving path on the inner side for the upper rail to slidably move,
a fixing hole for inserting the fastener is provided in a wall portion of the lower rail defining the moving path,
the bracket is fixed to the lower rail by the fastener in a state of being in contact with an outer side surface of the wall portion of the portion where the fixing hole is provided,
the fastener has a protrusion protruding toward the moving path by being inserted into the fixing hole,
an insertion hole is provided in a portion of the wall portion that overlaps with the protruding portion in the sliding movement direction of the upper rail,
the bracket has a slope portion provided with an inclined surface inclined from a root portion side to a tip end side,
the slope portion is disposed so as to protrude toward the moving path by being inserted through the insertion hole, and the inclined surface is positioned so as to be distant from the wall portion as approaching the protrusion portion side.
2. The slide rail for vehicle seats according to claim 1,
the slope portion is formed by bending a tongue-shaped portion provided at an edge portion of the bracket.
3. The slide rail for vehicle seats according to claim 1 or 2,
the tip of the slope portion overlaps with the wall portion at a portion between the fixing hole and the insertion hole when viewed in a direction along a normal to an inner surface of the wall portion.
CN202010660930.5A 2019-07-18 2020-07-10 Slide rail for vehicle seat Active CN112238795B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019132993A JP7293935B2 (en) 2019-07-18 2019-07-18 Vehicle seat slide rail
JP2019-132993 2019-07-18

Publications (2)

Publication Number Publication Date
CN112238795A true CN112238795A (en) 2021-01-19
CN112238795B CN112238795B (en) 2023-03-31

Family

ID=74170771

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010660930.5A Active CN112238795B (en) 2019-07-18 2020-07-10 Slide rail for vehicle seat

Country Status (2)

Country Link
JP (1) JP7293935B2 (en)
CN (1) CN112238795B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114604369B (en) * 2022-03-24 2023-09-05 中船黄埔文冲船舶有限公司 Driving chair sliding rail and ship

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013052841A (en) * 2011-09-06 2013-03-21 Aisin Seiki Co Ltd Vehicle seat sliding device
CN103764438A (en) * 2011-09-06 2014-04-30 爱信精机株式会社 Vehicle seat sliding device
CN203832291U (en) * 2013-03-28 2014-09-17 丰田纺织株式会社 Slide rail
CN203957916U (en) * 2014-07-14 2014-11-26 上海延锋江森座椅有限公司 A kind of safe pad for seat slide
CN106427679A (en) * 2015-08-06 2017-02-22 爱信精机株式会社 Vehicle seat slide device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013052841A (en) * 2011-09-06 2013-03-21 Aisin Seiki Co Ltd Vehicle seat sliding device
CN103764438A (en) * 2011-09-06 2014-04-30 爱信精机株式会社 Vehicle seat sliding device
CN203832291U (en) * 2013-03-28 2014-09-17 丰田纺织株式会社 Slide rail
CN203957916U (en) * 2014-07-14 2014-11-26 上海延锋江森座椅有限公司 A kind of safe pad for seat slide
CN106427679A (en) * 2015-08-06 2017-02-22 爱信精机株式会社 Vehicle seat slide device

Also Published As

Publication number Publication date
JP7293935B2 (en) 2023-06-20
CN112238795B (en) 2023-03-31
JP2021017110A (en) 2021-02-15

Similar Documents

Publication Publication Date Title
US8783780B2 (en) Vehicle seat
US7070236B2 (en) Automobile seat
US8657380B2 (en) Seat assembly having a moveable headrest assembly
US20130119724A1 (en) Vehicle seat
US20090152929A1 (en) Seatback Frame Structure For Vehicles
US6149241A (en) Vehicular seat
US20060273649A1 (en) Vehicle seat frame structure and method of assembling a portion of a vehicle seat frame
US9764660B2 (en) Slide rail
US9789789B2 (en) Vehicular seat
EP2415630B1 (en) Lifting mechanism of vehicle seat
US9387779B2 (en) Seat track assembly having selectable end stop positions
KR101987006B1 (en) Electric-powered sliding console for vehicle
US20200198501A1 (en) Seat track mechanism for vehicle
KR20100044775A (en) Latch mechanism
CN112238795B (en) Slide rail for vehicle seat
US20150336493A1 (en) Vehicle seat
JP6191373B2 (en) Seat back connection structure
JP2020131724A (en) Occupant protection structure of vehicle seat
JP6982507B2 (en) Vehicle slide rail device
JPH08310282A (en) Slider for automobile seat
CN111098764B (en) Seat slide device for vehicle
KR20080069200A (en) Mechanism for locking the rails of a motor vehicle seat
KR101551209B1 (en) Slide type sheet track possible continuously of step when position control
US10759304B2 (en) Conveyance seat
JP6610723B1 (en) Operating device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant