WO2014057818A1

WO2014057818A1 - Vehicular slide rail device

Info

Publication number: WO2014057818A1
Application number: PCT/JP2013/076192
Authority: WO
Inventors: 紀之材木
Original assignee: シロキ工業株式会社
Priority date: 2012-10-09
Filing date: 2013-09-27
Publication date: 2014-04-17

Abstract

The purpose of the present invention is to provide a vehicular slide rail device configured so that a lock member that is urged in a direction of locking by a spring means is caused to move in a direction as parallel as possible to a direction of extension of a lock groove formed in a lower rail, thereby enabling the lock member to be smoothly disengaged from the lock groove without causing a lock release lever to rotate significantly. The means for accomplishing this purpose is provided with a spring means (50) having an elastic deformation part that supports a lock member (57) and is deformable in the vertical direction, and a lock release lever (40) which rotatably supports an upper rail and has a pressing part (43) that causes the elastic deformation part to be elastically deformed. The lock release lever allows rotation between: a lock position, at which the lock member is allowed to be positioned at an engagement position by the urging force of the elastic deformation part; and an unlock position, at which the elastic deformation part is caused to be elastically deformed by the pressing part so as to position the lock member at a non-engagement position.

Description

Slide rail device for vehicle

The present invention relates to a vehicle slide rail device that slidably supports a seat.

Patent Document 1 is a conventional example of a slide rail device for a vehicle, and supports a pair of left and right lower rails fixed to a vehicle interior floor surface and a seat portion having a number of lock grooves extending in the vertical direction and extending in the front-rear direction. And a pair of left and right upper rails slidable with respect to the left and right lower rails, a lock plate rotatably supported by the upper rail having a lock portion that can be engaged and disengaged from below with respect to the lock groove, and a lock plate with rotation Biasing means for biasing. The lock plate can rotate between a lock position where the lock portion engages with the lock groove and an unlock position where the lock portion escapes downward from the lock groove, and the urging means moves the lock plate to the lock position side. The rotation is energized.
In this slide rail device, when the passenger does not apply operating force to the lock plate, the lock portion is engaged with one of the lock grooves by the biasing force of the biasing means, so that the slide position of the seat and the upper rail with respect to the lower rail is maintained. Is done. On the other hand, when the passenger rotates the lock plate to the unlock position against the urging force of the urging means, the lock portion of the lock plate moves downward to release the engagement with the lock groove, so that the seat and the upper rail Can slide relative to the lower rail.

JP 2001-219768 A

When the unlocking operation is performed by rotating the lock plate, the lock portion does not move (strictly) downward, but moves in the circumferential direction around the rotation center of the lock plate. That is, it does not move in a direction parallel to the extending direction of the lock groove, but moves in a direction non-parallel to the extending direction. For this reason, when the unlocking operation is performed and when the lock portion that has escaped from the lock groove returns to the direction in which the lock portion is engaged with the lock groove, the lock portion may not be smoothly engaged with and disengaged from the lock groove. Further, the rotation stroke of the lock plate for performing the unlocking operation has to be increased.

According to the present invention, the lock member urged in the lock direction by the spring means is moved in a direction as parallel as possible to the extension direction of the lock groove formed in the lower rail, so that the lock release lever is not rotated greatly. The present invention provides a vehicular slide rail device in which a member can be smoothly engaged and disengaged with respect to a lock groove.

A slide rail device for a vehicle according to the present invention includes a lower rail that extends in the front-rear direction and is immovable with respect to a vehicle floor, and a plurality of lock grooves that are formed side by side in the front-rear direction and extend in the up-down direction and open at one end. An upper rail supported by the lower rail so as to be slidable in the front-rear direction, an engagement position that engages with the lock groove, and a non-engagement position that escapes to the outside of the lock groove through the open end of the lock groove; A locking member that is movable in the vertical direction, a spring means that supports the locking member and has an elastically deformable portion that can be deformed in the vertical direction, and is rotatably supported by the upper rail and has its own pressing portion. And a lock release lever that elastically deforms the elastic deformation portion, and the lock release lever is engaged with the lock member by the urging force of the elastic deformation portion. It is possible to rotate between a lock position that allows the lock member to be positioned at a position and an unlock position that causes the lock member to be positioned at the non-engagement position by elastically deforming the elastic deformation portion by the pressing portion. It is characterized by that.

The upper rail has two support portions spaced apart in the front-rear direction, the spring means includes the elastic deformation portion between two portions respectively supported by the two support portions, and the lock release lever The front and rear positions of the lock member are different from each other, and the spring pressing portion including the pressing portion is engaged with the elastic deformation portion, and the lock release lever is moved by the biasing force of the elastic deformation portion. Between the locking position that allows the locking member to be positioned at the engaging position and the unlocking position that positions the locking member at the non-engaging position by pressing the elastic deformation portion with the spring pressing portion. May be rotatable.

The rigidity of the lock member may be higher than the rigidity of the spring means.

The front end and the rear end of the lock member may be engaged with two front and rear portions of the elastic deformation portion, respectively.

According to the present invention, the lock release lever rotatably supported by the upper rail is independent of the lock member, and the pressing portion elastically deforms (in the vertical direction) the elastic deformation portion of the spring means.
Therefore, the lock member moves in a direction (substantially) parallel to the extension direction (vertical direction) of the lock groove, so that the lock member can be smoothly engaged and disengaged with respect to the lock groove.
Further, since the lock member moves in the vertical direction, it is not necessary to rotate the lock release lever greatly during the lock / unlock operation.

According to the second aspect of the present invention, the spring pressing portion of the unlocking lever supported rotatably on the upper rail presses the elastic deformation portion (spring means) at a front and rear position different from the locking member. Therefore, although the pressing force from the spring pressing portion to the elastic deformation portion includes a rotation direction component, the rotation direction component hardly reaches the portion of the elastic deformation portion that supports the lock member.
Therefore, the above-described effects can be exhibited more effectively.

According to the invention described in claim 3, the lock strength is improved.

According to the invention described in claim 4, since the lock member is reliably supported by the spring means, the lock member can be reliably held in the engagement position with respect to the lock groove.

It is the perspective view which looked at the slide seat device (driver's seat) of the right side of one embodiment of the present invention from the front slanting upper part shown by sliding the upper rail to the rear end position. It is the disassembled perspective view seen from the front diagonal upper part of the right slide rail apparatus which abbreviate | omits and shows the right rail unit. It is the disassembled perspective view seen from the front slanting lower part of the right slide rail apparatus which abbreviate | omits the left rail unit and shows. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1. It is a disassembled perspective view of the rail unit which shows a lower rail by a longitudinal cross-sectional view. It is the perspective view seen from the front diagonal upper direction of the rail unit which shows a lower rail by a longitudinal cross-sectional view. It is the perspective view seen from the front slanting lower part of the upper rail, lock release lever, spring means, and lock member which fractured a part. It is the perspective view seen from the front slanting lower part of the lower rail shown in the longitudinal cross section, the lock release lever, the spring means, and the lock member. It is the perspective view seen from the front diagonal upper direction of the assembled lock release lever, the spring means, and the lock member. It is a typical side view which shows a state when a lock member is located in an engagement position and a non-engagement position. FIG. 6 is a side view showing the lower rail, the upper rail, the lock release lever, the urging spring, the spring means, and the loop handle when the lower rail and the upper rail are viewed in a longitudinal side view when they are in a locked state. FIG. 12 is a side view similar to FIG. 11 when in an unlocked state. It is a disassembled perspective view which expands and shows the front-end part of an unlocking lever, an urging | biasing spring, a lower side support part, and the rear-end part of a loop handle. It is the expansion perspective view seen from the bottom when the front end part of a lock release lever, a biasing spring, and the rear end part of a loop handle are mutually assembled. It is the expansion perspective view seen from the upper part when the front-end part of an unlocking lever, an urging | biasing spring, and the rear-end part of a loop handle are mutually assembled | attached. It is an enlarged vertical side view showing a front end portion of an upper rail and a lock release lever, a biasing spring, and a rear end portion of a loop handle when in a locked state. FIG. 17 is an enlarged vertical side view similar to FIG. 16, omitting the biasing spring when in an unlocked state.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The direction in the following description is based on the arrow direction indicated in the figure.
A slide rail device 10 is provided on the floor surface of an automobile (vehicle) (not shown), and a seat (not shown) is fixed to the upper surface of the slide rail device 10 (upper rail 30).

Next, the detailed structure of the slide rail device 10 will be described.
The slide rail device 10 supports the seat on the right side (driver's seat), and as a large component, a pair of left and right rail units 20 and a loop handle 60 that connects the front ends of the left and right rail units 20 are provided. It has. Since the left and right rail units 20 are bilaterally symmetric and the loop handle 60 is bilaterally symmetric, the slide rail device 10 is bilaterally symmetric as a whole.
The left and right rail units 20 have the following structure.
The rail unit 20 has a lower rail 21 fixed to a vehicle interior floor surface via a pair of front and rear fixed brackets 15. The lower rail 21 is a metal channel member extending in the front-rear direction and having an upper surface opened, and includes a substantially horizontal bottom wall 22, a pair of left and right outer wall portions 23 extending upward from left and right sides of the bottom wall 22, and left and right outer walls. A pair of left and right ceiling portions 24 extending inward from the upper edge portion of the portion 23 and a pair of left and right inner wall portions (vertical walls) 25 extending downward from the inner edge portions of the left and right ceiling portions 24 are provided. As shown in FIG. 5 and the like, upper edge portions (portions connected to the ceiling portion 24) of the left and right inner wall portions 25 are base end support portions 26 extending in the front-rear direction. A number of locking teeth 27 whose upper ends are connected to the base end support portion 26 are arranged at equal intervals in the front-rear direction at the lower edge portions of the left and right inner wall portions 25, and between the adjacent locking teeth 27. A lock groove 28 having an open lower end is formed.

The rail unit 20 has an upper rail 30 that can slide in the front-rear direction with respect to the lower rail 21. The upper rail 30 is a metal channel member extending in the front-rear direction and having an open bottom surface, and has a base portion 31 having a substantially U-shaped cross section and a longitudinal center portion of the lower edge portions of the left and right side walls of the base portion 31. A rising wall 32 extending upward from the removed portion and a central wall 33 extending upward from the central portion are provided. As shown in FIGS. 2, 3, 5, 7, etc., the part extending between the lower edge of the left and right central wall 33 and the lower edge of the side wall of the base 31 forms a horizontally long rectangle in side view. A groove 34 is recessed upward. Further, as shown in FIGS. 6 and 7 and the like, locking pieces 36 (supporting portions) that extend inward and then extend upward are formed on the rear portions of the left and right side wall portions of the base portion 31 by cutting and raising. Downward spring locking grooves 36a are recessed in the upper ends of the left and right locking pieces 36. An inward engagement piece 37 (support portion) is formed by cutting and raising at a portion located slightly in front of the central portion of the left and right side walls of the base portion 31. Further, in the vicinity of the front end of the base portion 31, a substantially horizontal lower support portion 38 extending inwardly from the lower edges of the left and right side walls is integrally projected.

The rail unit 20 further includes a lock release lever 40 attached to the upper rail 30, a spring means 50, a lock member 57, and a biasing spring 70.
The lock release lever 40 is a metal channel member that is formed by press-molding a metal plate, extends in the front-rear direction, and has an open bottom surface, and includes a pair of left and right side walls 41. As shown in FIGS. 2, 11, 12, and the like, a rotational contact convex portion 42 extending in the left-right direction protrudes from the upper surface of the lock release lever 40. Further, a pair of left and right spring pressing concave portions 43 (pressing portions) (spring pressing portions) are respectively provided in the rear end portion of the lock release lever 40, and the front portions of the left and right side walls 41 (from the rotational contact convex portions 42). An upward spring-hanging groove 44 is recessed at the lower edge of the portion located in the front. As shown in FIG. 13 and the like, a ceiling hole 45 is formed on the upper surface in the vicinity of the front end of the lock release lever 40, and an upper support 46 that connects the front ends of the left and right side walls 41 is provided on the upper front end. . Further, a spring hanging recess 47 is formed in the lower edge portion near the front end of the left and right side walls 41, and an inward substantially horizontal lower surface support piece 48 protrudes from the lower edge portion of the front end of the left and right side walls 41. is there.

The bias spring 70 is a bilaterally symmetric member obtained by press-molding a metal plate. The urging spring 70 includes a flat bottom support 71, an upper surface pressing piece 72 that extends rearward from the rear end of the bottom support 71, and then extends obliquely forward and further downward, and in front of the bottom support 71. A bottom pressing piece 76 that extends obliquely forward and upward from the edge and has a tip bent downward and obliquely downward, and a pair of left and right side arms 77 that extend forward from the front edge of the bottom support 71. The rear end portion of the upper surface pressing piece 72 constitutes a substantially V-shaped insertion end portion 73 in a side view, and a handle pressing portion 74 having a pair of left and right downward locking pieces 75 at the front end portion of the upper surface pressing piece 72. Is formed. An upward upward locking piece 78 projects in the vicinity of the front end of the left and right side arms 77.
The biasing spring 70 is inserted from the front end opening (between the upper support portion 46 and the lower surface support piece 48) of the lock release lever 40 into the internal space (the space located directly below the ceiling hole 45) of the front end portion of the lock release lever 40. It is. When the urging spring 70 is inserted, the insertion end portion 73 of the urging spring 70 is inserted into the U-shaped portion in the downward direction of the cross section of the lock release lever 40 (in the space located behind the space located directly below the ceiling hole 45). 16 (see FIG. 16), the left and right side arms 77 rest on the upper surfaces of the left and right lower surface support pieces 48, and the upward locking pieces 78 from the lower side with respect to the left and right spring hanging recesses 47 of the lock release lever 40 Because of the engagement, the biasing spring 70 is integrated with the lock release lever 40.

The spring means 50 is a symmetrical member obtained by bending a metal wire. The spring means 50 is entirely located on a single plane when in a free state, and has an intermediate narrow portion 51a and a rear narrow portion 51b that are narrower than the peripheral portion at two locations, the central portion and the rear portion in the longitudinal direction. Is formed. A front-rear extension 51c extending in the front-rear direction is formed in a portion located between the intermediate narrow portion 51a and the rear narrow portion 51b. Portions connected to the front end and the rear end of the front-rear extension 51c are a front-side inclined portion 51d and a rear-side inclined portion 51e that are inclined with respect to the front-rear extension 51c. Furthermore, a rear locking portion 51f extending in the left-right direction is formed as a pair of left and right at a portion located immediately after the rear narrow portion 51b. A portion located immediately before the intermediate narrow portion 51a constitutes a pressed portion 51g that is inclined with respect to the front-rear direction. A pair of left and right front end locking pieces 52 project outward and substantially horizontally at the front end of the spring means 50, and the rear end portion of the spring means 50 constitutes a rear end locking portion 53 that extends in the left and right directions in plan view. is doing.

The lock member 57 is a press-formed product of a metal plate, and its rigidity is higher than that of the spring means 50. The lock member 57 is integrally provided with a channel-shaped base portion 58 having an open lower surface and a pair of engagement plate portions 59 extending laterally from both side portions of the base portion 58. A front spring relief groove 58a and a rear spring relief groove 58b are recessed in the left and right side walls of the base 58. Further, an engagement groove 58c is formed in the vicinity of the rear ends of the left and right side walls of the base 58. The horizontal engagement plate portion 59 is formed with three lock holes 59a arranged in the front-rear direction, and portions adjacent to the front and rear of each lock hole 59a constitute four lock portions 59b. The front-rear width of the lock hole 59 a is slightly wider than the lock teeth 27 of the lower rail 21, and the front-rear width of each lock portion 59 b is narrower than the lock groove 28 of the lower rail 21.
The spring means 50 and the lock member 57 insert the left and right engagement plate portions 59 from above into the space formed between the left and right portions of the spring means 50 and move the left and right engagement plate portions 59 downward in the space. Further, the left and right engagement grooves 58c are engaged with the left and right rear locking portions 51f from above, and the front spring escape grooves 58a corresponding to the upper end surfaces of the front inclined portions 51d and the rear inclined portions 51e, By bringing the ceiling surface of the rear spring escape groove 58b into contact with each other, they are integrated with each other.

The lock release lever 40 (and the urging spring 70) is substantially entirely accommodated in the upper rail 30 from the front end opening portion (between the front end portion of the base portion 31 and the lower support portion 38) of the upper rail 30 (FIG. 16, FIG. 17, only the front end portion of the upper support portion 46 protrudes forward of the upper rail 30), and the rotational contact convex portion 42 is in contact with the ceiling surface of the base portion 31 (contact portion P in FIGS. 11 and 12). Reference: A space is formed between a portion other than the rotational contact convex portion 42 on the upper surface of the unlocking lever 40 and the ceiling surface of the base portion 31). As shown in FIGS. 6 to 8, 11, and 12, the spring means 50 locks the rear end locking portion 53 into the spring locking grooves 36a of the left and right locking pieces 36 (triangles in FIG. 11). The portions located slightly in front of the left and right pressed parts 51g are locked to the left and right locking pieces 37 (see the triangular marks in FIG. 11), and the left and right front end locking pieces 52 are further fixed. Is locked to the spring hooking groove 44 from below (see ↑ in FIG. 11). The pair of pressed portions 51g of the spring means 50 are located in the corresponding spring pressing recesses 43, and the ceiling surface of each spring pressing recess 43 comes into contact with the upper end surface of the corresponding pressed portion 51g from above. Further, the lock member 57 has the left and right engaging plate portions 59 positioned in the corresponding lock escape grooves 34 of the upper rail 30, and three lock teeth 27 are loosely fitted into the lock holes 59a from above. The lock part 59 b is loosely fitted in the four lock grooves 28. When the spring means 50 is attached to the upper rail 30, the lock release lever 40, and the lock member 57 in this way, the spring means 50 is engaged with the rear end engaging portion 53 of the spring means 50 with respect to the upper rail 30. The locking of the piece 36 is not released, and the front end locking piece 52 can move in the front-rear direction within a minute range that maintains the locking with the spring hooking groove 44. Further, since the spring means 50 is elastically deformed to generate an upward biasing force (elastic force) (see ↑ in FIG. 11), the rotational contact convex portion 42 of the lock release lever 40 is caused by the biasing force of the base 31. When pressed against the ceiling, the unlocking lever 40 can rotate around the rotation contact projection 42 (about the virtual rotation axis in the left-right direction) around the contact portion P between the ceiling and the rotation contact projection 42 and unlock. When an upward external force is not applied to the front end portion of the lever 40, the lock release lever 40 is held at the lock position shown in FIGS. 11 and 16, and the lock member 57 is held at the solid line in FIG. 9 and the engagement position shown in FIG. The
On the other hand, when an upward external force is applied to the front end portion of the lock release lever 40 against the biasing force of the spring means 50, the lock release lever 40 rotates to the unlock position shown in FIGS. 12 and 17, and as shown in FIG. Further, the spring pressing recess 43 of the lock release lever 40 pushes down the pressed portion 51g of the spring means 50 downward. Since the unlocking lever 40 rotates around the rotation contact convex portion 42, the pressing force from the spring pressing concave portion 43 to the pressed portion 51g includes a rotational direction component. However, since the spring pressing recess 43 presses the left and right front / rear extension 51c, the front inclined part 51d, and the pressed part 51g spaced forward from the rear inclined part 51e, the rotational direction component is It is difficult to reach the direction extending portion 51c, the front inclined portion 51d, and the rear inclined portion 51e. Therefore, when the part located between the pressed part 51g of the spring means 50 and the rear end locking part 53 is elastically deformed downward, the left and right front-rear extension parts 51c, the front inclined part 51d, and the rear inclined part 51e. Moves almost downward. As a result, the lock member 57 is lowered together with the left and right front-rear direction extending portions 51c, the front inclined portion 51d, and the rear inclined portion 51e while the engagement plate portion 59 is maintained in a horizontal state (see a virtual line in FIG. 9). The lock member 57 moves to the imaginary line in FIG. 9 and the disengaged position shown in FIG.

A rail assembled by inserting the upper rail 30, the lock release lever 40, the spring means 50, and the lock member 57 integrated in this way into the lower rail 21 from the front end opening or the rear end opening of the lower rail 21 is the rail. Unit 20. When the rail unit 20 is assembled, as shown in FIG. 4, the rising wall 32 and the central wall 33 of the upper rail 30 enter the space formed between the outer wall portion 23 and the inner wall portion 25 (in FIG. 4, the central wall 33 is not shown). Further, since the plurality of bearing balls 56 rotatably supported by the retainer 55 disposed in the space are in contact with the outer surface of the rising wall 32 and the inner surface of the outer wall portion 23 respectively, the upper rail 30 (and the lock) The release lever 40, the spring means 50, and the lock member 57) can slide in the front-rear direction with respect to the lower rail 21. Further, since front end stopper means and rear end stopper means (not shown) are provided between the upper rail 30 and the lower rail 21, the upper rail 30 has a front end position (not shown) and a rear end position (not shown in FIG. 1). Position).
The paired left and right rail units 20 are parallel to each other and aligned with the front and rear positions thereof (the sliding position of the upper rail 30 with respect to the lower rail 21 is also matched), and a seat (not shown) is placed on the upper surface of the upper rail 30. The seat is fixed.

When the left and right rail units 20 and the seat 11 are integrated in this way, the loop handle 60 is connected to the left and right lock release levers 40 using a pair of left and right biasing springs 70.
The loop handle 60 is obtained by bending a metal pipe material, and includes an operation part 61 extending in the left-right direction, a pair of inclined parts extending obliquely downward from the left and right ends of the operation part 61, and each inclined part. And a pair of rear end connecting portions 62 extending rearward from the left and right end portions of each. The upper contact surface 63 and the lower contact surface 64 of the rear end connecting portion 62 are parallel (horizontal) planes to each other, and the front portion of the upper contact surface 63 constitutes an upper supported portion 65. A rear portion of the side contact surface 64 constitutes a lower supported portion 66. Further, a locking groove 67 extending in the left-right direction is formed in the vicinity of the rear end of the upper contact surface 63.
The loop handle 60 is connected to the lock release lever 40 by inserting the left and right rear end connection portions 62 into the inner space of the front end portion of the lock release lever 40 from the front. When the rear end connection portion 62 is inserted, the rear end connection portion 62 enters the space between the bottom surface support portion 71 and the upper surface pressing piece 72 (handle pressing portion 74), and the bottom surface support portion 71 is placed on the lower contact surface 64. The left and right downward locking pieces 75 are fitted into the locking grooves 67, and the handle pressing portion 74 is in contact with the vicinity of the rear end of the upper contact surface 63 (the peripheral portion of the locking groove 67). Before the rear end connection part 62 is inserted into the internal space of the front end part of the unlocking lever 40, the vertical distance between the bottom surface support part 71 and the handle pressing part 74 is narrower than the vertical dimension of the rear end connection part 62. When the rear end connecting portion 62 is inserted into the space between the bottom surface supporting portion 71 and the upper surface pressing piece 72 (handle pressing portion 74), the upper surface pressing piece 72 is elastically deformed upward, and from the bottom surface supporting portion 71 and the handle pressing portion 74, A pressing force is applied to the lower contact surface 64 and the upper contact surface 63, respectively. Further, the vicinity of the front end of the bottom pressing piece 76 that is elastically deformed downward contacts the front part of the lower contact surface 64. Then, the left and right rear end connection portions 62 and the front end portions of the lock release lever 40 are integrated with each other via the biasing spring 70, and the rear end connection portion 62 is substantially moved relative to the lock release lever 40 in the front and rear direction. Be regulated.
When the slide seat device 10 is assembled by integrating the loop handle 60 with the left and right rail units 20 in this way, the rear end connecting portion 62 always receives an upward biasing force from the bottom surface pressing piece 76 and always always has the top surface pressing piece 72. Since the downward urging force is received from the (handle pressing portion 74), the upper supported portion 65 is always in contact with the upper support portion 46 (so as to be rotatable about a left-right axis), and further, the lower supported portion 66. Is always in contact with the bottom support 71 and the bottom support 71 is always in contact with the lower support 38 (rotatable about a left-right axis).

The assembled slide seat device 10 is attached to the vehicle interior floor by fixing the fixing bracket 15 fixed to the left and right lower rails 21 to the vehicle interior floor.

Next, the operation of the slide rail device 10 will be described.
When no external force (other than the spring means 50) is applied to the loop handle 60, the lock release lever 40 is positioned at the lock position by the urging force of the spring means 50, so that the upper rail 30 cannot slide with respect to the lower rail 21. .
When the passenger grasps the operating portion 61 by hand and rotates the entire loop handle 60 upward against the biasing force of the spring means 50, this rotational force is transmitted from the rear end connecting portion 62 to the front end portion of the lock release lever 40. The lock release lever 40 rotates upward together with the rear end connection portion 62. Then, the lock release lever 40 located at the lock position rotates to the unlock position, and the lock member 57 maintains the horizontal state of the engagement plate portion 59 as described above, while the left and right front-rear direction extension portions 51c and the front inclined portion. 51d and the rear inclined portion 51e move downward (see the phantom line in FIG. 9), so that the lock member 57 (the lock portion 59b) smoothly escapes from the lock groove 28, and the upper rail 30 is moved to the lower rail 21. On the other hand, it can slide.
Further, when the lock release lever 40 is rotated and returned to the locked position by the biasing force of the spring means 50 (when the loop handle 60 is returned to the initial position), the left and right front / rear extension 51c, the front inclined portion 51d, and the rear inclined Since the portion 51e moves substantially upward, the lock member 57 moves upward together with the left and right front-rear extension portions 51c, the front inclined portion 51d, and the rear inclined portion 51e while maintaining the horizontal state of the engagement plate portion 59. The lock member 57 (lock portion 59b) is smoothly loosely fitted into the lock groove 28 again. Therefore, the upper rail 30 cannot slide again with respect to the lower rail 21.
Further, since the lock member 57 moves in the vertical direction, it is not necessary to rotate the lock release lever 40 and the loop handle 60 greatly during the lock / unlock operation.

Although the present invention has been described based on the above embodiment, the present invention can be implemented with various modifications.
For example, the pressing position of the spring means 50 by the spring pressing recess 43 of the lock release lever 40 (the position corresponding to the pressed part 51g) is from the front / rear extension 51c, the front inclined part 51d, and the rear inclined part 51e. A position different from the pressed part 51g may be used as long as the position is shifted back and forth.
Further, the portion of the lock release lever 40 that presses the spring means 50 does not have to be a concave portion like the spring pressing concave portion 43, and may be a flat surface or a convex portion.

The vehicle slide rail device of the present invention moves the lock member biased in the locking direction by the spring means in the direction parallel to the extension direction of the lock groove formed in the lower rail as much as possible, thereby greatly increasing the lock release lever. The lock member can be smoothly engaged and disengaged with respect to the lock groove without rotating.

DESCRIPTION OF SYMBOLS 10 Slide rail apparatus 15 Fixed bracket 20 Rail unit 21 Lower rail 22 Bottom wall 23 Outer wall part 24 Ceiling wall 25 Inner wall part 26 Base end support part 27 Lock tooth 28 Lock groove 30 Upper rail 31 Base part 32 Rising wall 33 Central wall 34 Lock escape groove 36 Locking piece (support part)
36a Spring locking groove 37 Locking piece (supporting part)
38 Lower support portion 40 Unlocking lever 41 Side wall 42 Rotating contact convex portion 43 Spring pressing concave portion (pressing portion) (spring pressing portion)
44 Spring hanging groove 45 Ceiling hole 46 Upper support portion 47 Spring hanging recess 48 Lower surface support piece 50 Spring means 51a Intermediate narrow portion 51b Rear narrow portion 51c Front and rear direction extension portion 51d Front inclined portion 51e Rear inclined portion 51f Rear locking Portion 51g Pressed portion 52 Front end locking piece 53 Rear end locking portion 55 Retainer 56 Bearing ball 57 Lock member 58 Base 58a Front spring relief groove 58b Rear spring relief groove 58c Engaging groove 59 Engaging plate

59a Lock hole

59b Lock Part 60 loop handle 61 operation part 62 rear end connection part 63 upper contact surface 64 lower contact surface 65 upper supported part 66 lower supported part 67 locking groove 70 urging spring 71 bottom support part 72 upper surface pressing piece 73 Insertion end 74 Handle pressing portion 75 Downward locking piece 76 Bottom pressing piece 77 Side arm 78 Upward locking piece P Contact portion

Claims

A lower rail extending in the front-rear direction and immovable relative to the vehicle floor,
A plurality of locking grooves formed in the lower rail side by side in the front-rear direction and extending in the vertical direction and having one end opened;
An upper rail supported by the lower rail so as to be slidable in the front-rear direction;
A lock member that is movable in the vertical direction between an engagement position that engages with the lock groove and a non-engagement position that escapes to the outside of the lock groove through the open end of the lock groove;
Spring means comprising an elastically deformable portion that supports the lock member and is deformable in the vertical direction;
A lock release lever that rotatably supports the upper rail and elastically deforms the elastic deformation portion by its own pressing portion;
With
The lock release lever includes a lock position that allows the lock member to be positioned at the engagement position by an urging force of the elastic deformation portion, and elastically deforming the elastic deformation portion by the pressing portion, thereby A vehicular slide rail device capable of rotating between an unlock position where a member is positioned at the non-engagement position.
In the vehicle slide rail device according to claim 1,
The upper rail has two support parts spaced apart in the front-rear direction,
The spring means includes the elastic deformation portion between two portions respectively supported by the two support portions.
The lock release lever is different from the lock member in the front-rear position and engages the spring pressing portion including the pressing portion with the elastic deformation portion,
The lock release lever is configured to press the elastic deformation portion with the lock position allowing the lock member to be positioned at the engagement position by the urging force of the elastic deformation portion, and the spring pressing portion. A slide rail device for a vehicle which is rotatable between the unlock position where the lock member is positioned at the non-engagement position.
In the vehicle slide rail device according to claim 1 or 2,
A slide rail device for a vehicle, wherein the rigidity of the lock member is higher than the rigidity of the spring means.
In the vehicle slide rail device according to claim 1 or 2,
A vehicle slide rail device in which a front end and a rear end of the lock member are respectively engaged with two front and rear portions of the elastic deformation portion.