WO2014064849A1 - Slide rail mechanism, and vehicle seat - Google Patents

Slide rail mechanism, and vehicle seat Download PDF

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Publication number
WO2014064849A1
WO2014064849A1 PCT/JP2012/077792 JP2012077792W WO2014064849A1 WO 2014064849 A1 WO2014064849 A1 WO 2014064849A1 JP 2012077792 W JP2012077792 W JP 2012077792W WO 2014064849 A1 WO2014064849 A1 WO 2014064849A1
Authority
WO
WIPO (PCT)
Prior art keywords
lock
upper rail
engaged
side wall
slide rail
Prior art date
Application number
PCT/JP2012/077792
Other languages
French (fr)
Japanese (ja)
Inventor
好信 金子
豊 木澤
貴行 小笠原
斉 小見山
素久 中村
Original Assignee
テイ・エス テック株式会社
岐阜車体工業株式会社
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 テイ・エス テック株式会社, 岐阜車体工業株式会社 filed Critical テイ・エス テック株式会社
Priority to JP2014543115A priority Critical patent/JP5933024B2/en
Priority to PCT/JP2012/077792 priority patent/WO2014064849A1/en
Publication of WO2014064849A1 publication Critical patent/WO2014064849A1/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
    • B60N2/07—Slide construction
    • B60N2/0702—Slide construction characterised by its cross-section
    • B60N2/0705—Slide construction characterised by its cross-section omega-shaped
    • 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
    • B60N2/0702—Slide construction characterised by its cross-section
    • B60N2/0715—C or U-shaped
    • 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
    • B60N2/08—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 characterised by the locking device
    • B60N2/0812—Location of the latch
    • B60N2/0818—Location of the latch inside the rail
    • 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
    • B60N2/08—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 characterised by the locking device
    • B60N2/0831—Movement of the latch
    • B60N2/0837—Movement of the latch pivoting
    • B60N2/085—Movement of the latch pivoting about a transversal axis
    • 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
    • B60N2/08—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 characterised by the locking device
    • B60N2/0881—Activation of the latches by the control mechanism

Definitions

  • the present invention relates to a slide rail mechanism and a vehicle seat, and more particularly to a slide rail mechanism having a lock member that restricts relative movement of an upper rail with respect to a lower rail and a vehicle seat including the slide rail mechanism.
  • a vehicle seat having a slide rail mechanism that can slide a seat body in a front-rear direction with respect to a vehicle body floor.
  • the slide rail mechanism mainly includes a lower rail that is fixed to the vehicle body floor, an upper rail that is fixed to the seat body and is supported so as to be relatively movable on the lower rail, and a lock member that restricts relative movement of the lower rail and the upper rail.
  • a slide rail mechanism having a lock member a technique is known in which the relative movement of the upper rail with respect to the lower rail is brought into a locked state or an unlocked state by an occupant operating a handle (for example, Patent Document 1).
  • the seat slide device described in Patent Document 1 mainly includes a lower rail 110, an upper rail 120, a lock lever 130, and a handle 150.
  • the handle 150 As the handle 150 is operated, the lower rail 110 is provided.
  • the lock claw 136 of the lock lever 130 is detachably connected to the lock hole 116 via the opening hole 125 of the upper rail 120, and the relative movement of the upper rail 120 with respect to the lower rail 110 is restricted. Can do.
  • the handle 150 is inserted into the interlocking support portion 140 of the lock lever 130 and is supported so as to be rotatable relative to the lock lever 130.
  • the lock lever 130 is inserted into the upper rail 120 and is supported so as to be rotatable with respect to the upper rail 120 in conjunction with the rotation of the handle 150.
  • the lock lever 130 includes a coil spring 137 that biases the handle 150, and a part of the coil spring 137 is latched in a latch groove 151 formed on the outer surface of the handle 150, and is adjacent to a part of the coil spring 137. This portion is locked in a locking groove 146 formed in the interlocking support portion 140.
  • the coil spring 137 urges the handle 150 to a position where the lock claw 136 is engaged with the lock hole 116.
  • the seat slide device as in Patent Document 1 has a lock mechanism that restricts the relative movement of the upper rail 120 by detachably engaging the lock claw 136 with the lock hole 116.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to include a lock mechanism that restricts the relative movement of the upper rail with respect to the lower rail, and an engaging portion and an engaged portion constituting the lock mechanism. It is another object of the present invention to provide a slide rail mechanism and a vehicle seat that ensure the engagement strength by the above and facilitate the engaging / disengaging operation of the engaging portion and the engaged portion.
  • the subject is engaged with the lower rail fixed to the vehicle floor, the upper rail supported to be relatively movable with respect to the lower rail, and the engaging portion provided on the lower rail. It has a possible engaged portion, and is movable between an engaging position where the engaged portion engages with the engaging portion and a disengagement position where the engaged portion is separated from the engaging portion.
  • the engagement position and the disengagement position of the engaged portion are vertically moved with respect to each other via the rotation shaft. That are positioned on opposite sides, it is solved by.
  • the engaged position and the disengaged position of the engaged portion of the lock member are located on the opposite sides of each other via the rotation shaft, the engaged position or the disengaged position of the engaged portion is rotated. Compared with the case where it is located at the same height as the moving shaft, when the engaged portion rotates up and down around the rotating shaft, the moving range in the upper rail moving direction by the engaged portion is further reduced. Can do. As a result, in the lock mechanism in which the engaged portion provided on the lower rail moves the engaged portion provided on the lock member in the up and down direction so as to be detachably engaged, the engaged portion is moved up and down.
  • the rotation shaft may be disposed in the center between the engagement position and the disengagement position of the engaged portion in the vertical direction.
  • the pivot shaft is arranged in the center between the engagement position and the disengagement position of the engaged portion in the vertical direction, so that the engaged portion rotates between the engagement position and the disengagement position.
  • the engaging part and the engaged part are formed of a lock groove and a lock claw
  • the lock groove includes a first side wall part, a second side wall part, the second side wall part, and the first side which face each other.
  • a bottom wall portion connecting the side wall portions, and the first side wall portion and the second side wall portion preferably have a shape that spreads from the bottom wall portion toward the opening.
  • the engaging portion and the engaged portion include the lock groove and the lock claw, and the first side wall portion and the second side wall portion of the lock groove have shapes that spread from the bottom wall portion toward the opening portion.
  • the lock claw rotates about the rotation axis in the direction of engaging with the lock groove, the lock claw is guided to the expanded shape of the first side wall and the second side wall, and the engagement portion and the engaged portion are engaged.
  • the mating portion can be reliably engaged, and the engagement strength can be ensured. Further, the engaging / disengaging operation between the engaging portion and the engaged portion is further facilitated.
  • the first side wall portion is located closer to the rotation shaft than the second side wall portion, and the first side wall portion of the lock groove is centered on the rotation shaft by the lock claw. It should be inclined along the turning trajectory. As described above, since the first side wall portion of the lock groove is inclined along the rotation locus around the rotation axis by the lock claw, the lock groove and the lock claw can be more easily engaged and disengaged. .
  • the engaging portion and the engaged portion each include a plurality of lock grooves and lock claws, and the lock claws are arranged on the rotating shaft side in the moving direction of the upper rail.
  • a lock claw and a second lock claw disposed on the opposite side of the rotation shaft with respect to the first lock claw, wherein the engagement position is the second lock claw and the lock of the lock claw. It is good if it is a position where the groove contacts.
  • the engagement position is a position where the second lock claw and the lock groove abut out of the plurality of lock claws, and the second lock claw rotates between the engagement position and the disengagement position.
  • the movement range in the upper rail moving direction can be made smaller than that of the first lock claw when pivoting up and down around the center, wear of the lock groove and the lock claw can be reduced, and the functionality of the engagement / disengagement operation can be further improved.
  • the engaging portion and the engaged portion are each formed of a plurality of lock grooves and lock claws, the engagement strength can be ensured by the engagement of the lock grooves and lock claws constituting the lock mechanism. it can.
  • the lock member may include a holding portion that holds the operation handle, and the operation handle may be held by the holding portion so as to be rotatable integrally with the lock member.
  • the lock mechanism can be operated by operating the operation handle of the occupant to interlock the lock member. .
  • the lock member may be inserted into the upper rail such that a portion of the lock member including the holding portion protrudes from an end of the upper rail on the operation handle side.
  • the lock mechanism that restricts the relative movement of the upper rail with respect to the lower rail is provided. Engagement strength between the engagement portion and the engaged portion constituting the lock mechanism is ensured, and the engagement portion and the covered portion are secured.
  • a vehicle seat provided with a slide rail mechanism that facilitates engaging / disengaging of the engaging portion can be obtained.
  • the engaged position and the disengaged position of the engaged portion of the lock member are located on the opposite sides of each other via the rotation shaft. Or, compared to the case where the disengagement position is located at the same height as the rotation shaft, when the engaged portion rotates up and down around the rotation shaft, the movement range in the upper rail movement direction by the engaged portion. Can be further reduced. As a result, in the lock mechanism in which the engaged portion provided on the lower rail moves the engaged portion provided on the lock member in the up and down direction so as to be detachably engaged, the engaged portion is moved up and down. By making the movement in the upper rail moving direction as small as possible when rotating, the engaging / disengaging operation with respect to the engaging portion becomes smooth, and wear can be reduced. Therefore, it is possible to provide a slide rail mechanism in which the engagement strength of the engaging portion and the engaged portion constituting the lock mechanism is ensured and the functionality of the engaging / disengaging operation is improved.
  • an engaging part and an engaged part consist of a lock groove and a lock nail
  • the locking claw Since the locking claw is rotated in the direction of engaging the lock groove with the rotation axis as the center, the locking claw is guided to the expanded shape of the first side wall and the second side wall.
  • the mating portion and the engaged portion can be reliably engaged, and the engagement strength can be ensured. Further, the engaging / disengaging operation between the engaging portion and the engaged portion is further facilitated.
  • the engagement position is a position where the second lock claw and the lock groove abut out of the plurality of lock claws, and the second lock claw is between the engagement position and the disengagement position.
  • the lock mechanism is interlocked by operating the operation handle of the occupant.
  • Can function since the operation handle is held by the holding portion protruding from the upper rail among the lock members inserted in the upper rail, when the operation handle rotates with respect to the lock member.
  • the operation handle and the upper rail are not in contact with each other. Therefore, the relative rotation range of the operation handle and the lock member can be expanded, and the lock state maintaining function can be enhanced.
  • the vehicle seat provided with the slide rail mechanism which has said effect can be obtained.
  • FIG. 1 is a schematic perspective view of a vehicle seat according to the present invention. It is a schematic perspective view of the slide rail mechanism which concerns on this invention. It is the schematic perspective view which decomposed
  • FIG. 3 is a partial enlarged view of the slide rail mechanism of FIG. 2 taken along the line AA from the side, and is an explanatory view showing a state in which an engaging claw is engaged with an engaging groove.
  • FIGS. 3A and 3B are partial enlarged views of a section BB of the slide rail mechanism of FIG. 2 as viewed from the side, and are explanatory views showing an engagement position where an engagement claw is engaged with an engagement groove and a separation position where the engagement claw is detached. It is explanatory drawing of the vehicle seat provided with the seat slide apparatus of the prior art example.
  • the present embodiment has a lock mechanism that restricts the relative movement of the upper rail with respect to the lower rail, and this lock mechanism engages with the lock groove by rotating the lock claw upward about the rotation axis.
  • the slide rail mechanism is characterized in that a rotation shaft is arranged at the center between the engagement position and the disengagement position in the vertical direction at the position and the disengagement position where the lock claw rotates downward and disengages from the lock groove.
  • the present invention relates to a vehicle seat invention. As shown in FIG. 1, the vehicle seat S of the present embodiment is mounted on a vehicle body floor in a state in which a seat body including a seat cushion 1, a seat back 2, and a headrest 3 is movable in the front-rear direction. It comprises a slide rail mechanism 4 for mounting. The side on which the occupant is seated with respect to the seat back 2 of the vehicle seat S is the front side.
  • the seat cushion 1 is a seating portion that supports an occupant from below, and is configured such that a cushion pad 1a is placed on a cushion frame (not shown) serving as a skeleton and is covered with a skin 1b from above the cushion pad 1a.
  • the seat back 2 is a backrest portion that supports the back of the occupant from the back, and is configured by placing a cushion pad 2a on a seat back frame (not shown) serving as a skeleton and covering with a skin 2b.
  • the headrest 3 is a head that supports the occupant's head from behind, and is formed by disposing a cushion pad 3a on a pillar (not shown) serving as a core material and covering it with a skin 3b.
  • the vehicle seat S of the present embodiment is mounted on a vehicle body floor in a state in which a seat body including a seat cushion 1, a seat back 2, and a headrest 3 is movable in the front-rear direction. It comprises a slide rail mechanism 4 for mounting.
  • the side on which the occupant is seated with respect to the seat back 2 of the vehicle seat S is the front side.
  • the seat cushion 1 is a seating portion that supports an occupant from below, and is configured such that a cushion pad 1a is placed on a cushion frame (not shown) serving as a skeleton and is covered with a skin 1b from above the cushion pad 1a.
  • the seat back 2 is a backrest portion that supports the back of the occupant from the back, and is configured by placing a cushion pad 2a on a seat back frame (not shown) serving as a skeleton and covering with a skin 2b.
  • the headrest 3 is a head that supports the occupant's head from behind, and is formed by disposing a cushion pad 3a on a pillar (not shown) serving as a core material and covering it with a skin 3b.
  • the slide rail mechanism 4 is disposed between the seat main body and the vehicle body floor in the vertical direction, and is movable relative to the lower rail 10 and the lower rail 10 fixed to the vehicle body floor as shown in FIG.
  • the upper rail 20 that is supported and fixed to the seat cushion 1, the lock member 30 that is inserted into the upper rail 20 and restricts the relative movement of the upper rail 20, and is locked to the lock member 30, so that the upper rail 20 cannot be relatively moved.
  • the spring member 37 is maintained mainly in a locked state, and the operation handle 50 is supported by one end of the lock member 30.
  • the lower rail 10 is formed of a long hollow body made of a metal material, and is arranged in a pair at a predetermined interval in the left-right direction, and is configured such that a front end portion and a rear end portion are openings.
  • the material of the lower rail 10 is not limited to a metal material, and other materials such as a resin material may be used.
  • the lower rail 10 includes a bottom plate portion 11 fixed to the vehicle body floor, an outer plate portion 12 bent upward from both left and right end portions of the bottom plate portion 11, and upper end portions of the left and right outer plate portions 12.
  • the upper plate portion 13 is bent inward from the left and right sides, and the inner plate portion 14 is bent downward from the left and right upper plate portions 13.
  • the lower rail 10 is provided with a storage chamber 15 surrounded by a bottom plate portion 11, left and right outer plate portions 12, left and right upper plate portions 13, and left and right inner plate portions 14. , An opening formed between the left and right inner plate portions 14 is provided.
  • a plurality of lock grooves 16 each having a substantially U-shape cut upward from a substantially central portion to a front portion are provided at lower end portions of the left and right inner plate portions 14. Details of the lock groove 16 will be described later.
  • the upper rail 20 is a long body that slides along the lower rail 10 while being inserted into the storage chamber 15 of the lower rail 10, and is formed of a metal material or the like. As shown in FIG. 3, the upper rail 20 includes an upper plate portion 21 connected to the seat cushion 1, an inner plate portion 22 bent downward from both left and right end portions of the upper plate portion 21, and left and right inner plate portions 22. And a guide plate portion 23 that is bent outward from the lower end portion and protrudes upward.
  • the upper rail 20 is provided with a storage chamber 24 surrounded by an upper plate portion 21 and left and right inner plate portions 22, and a receiving groove 25 formed between the inner plate portion 22 and the guide plate portion 23.
  • the housing chamber 24 is opened downward, and the housing groove 25 is opened upward.
  • a stopper portion 26 cut and raised downward is formed in the front portion of the upper plate portion 21, and the stopper portion 26 is configured to enter the accommodation chamber 24.
  • a plurality of lock holes 27 each having a substantially U-shape that is notched upward are provided in the lower end portions of the left and right inner plate portions 22 and the guide plate portion 23 in a substantially central portion in the front-rear direction.
  • a through-hole 28 penetrating in the left-right direction is provided between the stopper portion 26 and the lock hole 27 in the front-rear direction at the center in the vertical direction of the left and right inner plate portions 22.
  • the upper rail 20 is inserted into the accommodation chamber 15 of the lower rail 10, the upper plate portion 21 and the inner plate portion 22 protrude upward from the opening of the accommodation chamber 15, and the guide plate portion 23 is accommodated.
  • the chamber 15 is configured to be fitted between the outer plate portion 12 and the inner plate portion 14.
  • the inner plate portion 14 of the lower rail 10 is configured to be fitted into the accommodation groove 25 of the upper rail 20.
  • a guide 29 is fitted between the left and right outer plate portions 12 of the lower rail 10 and the left and right guide plate portions 23 of the upper rail 20, and the guide 29 is slidable in the front-rear direction with respect to the lower rail 10.
  • the lower rail 10 and the upper rail 20 are supported.
  • the lock member 30 is a long body formed of a metal material or the like, and is changed from a locked state in which the upper rail 20 is not relatively movable with respect to the lower rail 10 to an unlocked state in which relative movement is possible. It consists of a member that operates to switch, and is inserted into the accommodation chamber 24 of the upper rail 20.
  • the lock member 30 is disposed on the left and right sides of the lock member 30, and is adjacent to the left and right inner plate portions 22 of the upper rail 20 and extends in the front-rear direction, the right side plate portion 31 and the left side plate portion 32, and the right side plate portion.
  • a holding portion 40 having a substantially U-shaped longitudinal section provided in a portion extending forward; It is mainly composed of.
  • the rotation shaft 34 is formed of a substantially circular convex portion, and is inserted into the through hole 28 of the upper rail 20 and pivotally supported, whereby the lock member 30 can be rotated with respect to the upper rail 20. More specifically, as shown in FIG. 4, after the lock member 30 is inserted into the storage chamber 24 of the upper rail 20, the stopper portion 26 of the upper rail 20 is bent downward to form the right side plate portion 31 and the stopper plate portion. By inserting and engaging with the gap between the right side plate portion 35 and the right side plate portion 31 and the stopper plate portion 35, a force is applied in the direction in which the right and left outer sides expand. The rotating shaft 34 is inserted into the through hole 28 and is pivotally supported.
  • the lock claw 36 is a member that detachably engages with the lock groove 16 of the lower rail 10 through the lock hole 27 of the upper rail 20.
  • the lock claw 36 includes four left lock claws 36a formed in a substantially rectangular plate shape, and one right lock claw 36b formed in a substantially rectangular plate shape and having left and right outer ends connected to each other. ing. Details of the lock claw 36 will be described later.
  • the spring member 37 is a known torsion coil spring, and maintains the lock member 30 so that the lock claw 36 is located at an engagement position where the lock claw 36 is engaged with the lock groove 16.
  • the spring member 37 is composed of a spring main body portion 37a, a front spring arm portion 37b extending from the spring main body portion 37a to the front side and the rear side, and a rear spring arm portion 37c.
  • the lock member 30 is disposed between the rotation shaft 34 and the holding portion 40.
  • the spring main body portion 37a is fitted between the inner plate portion 22 of the upper rail 20 and the right plate portion 31 of the lock member 30 to restrict the movement of the lock member 30 in the left-right direction and to deform the lock member 30. Plays a function to prevent. As shown in FIG.
  • the front spring arm portion 37 b protrudes from the front end portion of the upper rail 20 and is hooked to the holding portion 40.
  • the rear spring arm portion 37 c is provided on the upper surface of the right side plate portion 31 and is hooked by a substantially L-shaped hook portion 38 that protrudes toward the left side plate portion 32.
  • the holding portion 40 is a portion that holds the extended end portion of the operation handle, and as shown in FIG. 4, a side plate portion 41 that continuously extends from the right side plate portion 31 to the front side, and a side plate portion 41.
  • the holding portion 40 is formed with a holding region 45 that is a space surrounded by the side plate portion 41, the upper plate portion 42, and the bottom plate portion 43.
  • a substantially U-shaped locking groove 46 recessed downward is provided on the upper surface of the side plate portion 41.
  • the opening width of the locking groove 46 is formed to be approximately the same as the wire diameter of the spring member 37 or slightly smaller than the wire diameter of the spring member 37. Thus, the front-rear width of the opening of the locking groove 46 is narrowed, and the spring member 37 locked to the locking groove 46 can be prevented from falling off.
  • the operation handle 50 is a rod member that is positioned at a disengagement position where the lock claw 36 is disengaged from the lock groove 16 against the urging force of the spring member 37 by the operation of the occupant. It is formed in a U shape.
  • the operation handle 50 includes a handle body 51 that is operated by an occupant and left and right handle arms 52 that are bent backward and extended from both left and right ends of the handle body 51.
  • the rear end portion of the handle arm portion 52 is inserted and held in the holding region 45 of the holding portion 40, and a latch groove 53 that is recessed downward is formed on the outer surface of the rear end portion.
  • an inclined surface 54 which is formed on the rear side of the latching groove 53 and is inclined downward on the rear side.
  • the latching groove 53 is substantially U-shaped and extends in the left-right direction, and is disposed to face the locking groove 46 in the left-right direction. A part of the spring member 37 is latched by the latching groove 53, and a part adjacent to a part of the spring member 37 is latched by the latching groove 46.
  • FIGS. 5 and 6 an engagement position where the lock claw 36 engages with the lock groove 16 and a disengagement position where the lock claw 36 separates from the lock groove 16 will be described with reference to FIGS. 5 and 6.
  • the lock claw 36 is engaged with the lock groove 16 and is separated from the lock groove 16 as shown in FIG. Can move between. That is, when the lock claw 36 rotates upward about the rotation shaft 34, it engages with the lock groove 16 while penetrating the lock hole 27 and rotates downward about the rotation shaft 34.
  • the lock hole 27 is configured to be detached from the lock groove 16 in a state where the lock hole 27 is penetrated.
  • the rotation shaft 34 is disposed at the approximate center between the engagement position and the disengagement position of the lock claw 36 in the vertical direction.
  • it is not limited to arrangement
  • the lock groove 16 includes a first side wall portion 16a provided on the rotating shaft 34 side, a second side wall portion 16b facing the first side wall portion 16a, a first side wall portion 16a and a first side wall portion 16a.
  • the bottom wall part 16c which connects the upper end part of the two side wall part 16b is comprised mainly.
  • the lock groove 16 of the present embodiment is formed in a substantially U shape, but is not limited thereto, and the shape can be appropriately changed, such as a substantially U shape or a substantially V shape.
  • the lock groove 16 has a tapered shape that widens from the bottom wall portion 16c toward the opening, and the first side wall portion 16a and the second side wall portion 16b are inclined so as to spread from each other.
  • the inclination angle at which the first side wall portion 16a and the second side wall portion 16b are inclined with respect to the vertical direction is set in consideration of wear reduction by the lock groove 16 and the lock claw 36 and engagement / disengagement operability.
  • the inclination angle of the first side wall portion 16a is an inclination angle set so as to follow a rotation locus around the rotation shaft 34 by the lock claw 36.
  • the lock claw 36 includes a first lock claw 36c provided on the rotating shaft 34 side and a second lock claw 36d provided in a rear portion adjacent to the first lock claw 36c. ing.
  • the portion where the lock claw 36 and the lock groove 16 of the present embodiment are engaged is a portion where the second lock claw 36 d contacts the first side wall portion 16 a and the second side wall portion 16 b of the lock groove 16.
  • the first lock claw 36 c and the other lock claw 36 behind the second lock claw 36 d have an appropriate gap with respect to the lock groove 16 and do not come into contact with the lock groove 16.
  • the engagement position of this embodiment is set to the position where the 2nd lock claw 36d engages with the lock groove
  • the operation handle 50 is inserted into the holding portion 40 and is held in a state where it can rotate integrally with the lock member 30.
  • the lock member 30 is interlocked with the rotation of the operation handle 50, and the rotation shaft 34.
  • the slide rail mechanism 4 is normally in a state in which the lock claw 36 is biased by the spring member 37 to the engagement position where the lock claw 36 is engaged with the lock groove 16 of the lower rail 10, and moves the upper rail 20 relative to the lower rail 10. Hold impossible.
  • the lock claw 36 moves to the disengagement position where the lock claw 36 is detached from the lock groove 16, and the upper rail 20 can be easily switched to a state in which the upper rail 20 can be moved relative to the lower rail 10. it can.
  • the front seat of the automobile has been described as a specific example.
  • the present invention is not limited to this and can be applied to a middle seat and a rear seat of the automobile.

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

Abstract

Provided are a slide rail mechanism and a vehicle seat, with which the strength of engagement of a lock groove by a lock latch is ensured, and engagement/disengagement operations are facilitated. A slide rail mechanism (4) of a vehicle seat (S) is provided with a lock member (30) which restricts relative movement of an upper rail (20) with respect to a lower rail (10). The lock member (30) is provided with a rotational shaft (34) pivoted to the upper rail (20). The rotational shaft (34) is centrally disposed, in the vertical direction, between an engagement position, in which a lock latch (36), having rotated upward about the rotational shaft (34) at the centre thereof, engages with a lock groove (16), and a release position, in which the lock latch (36), having rotated downward, is released from the lock groove (16).

Description

スライドレール機構及び車両用シートSlide rail mechanism and vehicle seat
　本発明は、スライドレール機構及び車両用シートに係り、特に、ロアレールに対するアッパレールの相対移動を規制するロック部材を有するスライドレール機構及びスライドレール機構を備えた車両用シートに関する。 The present invention relates to a slide rail mechanism and a vehicle seat, and more particularly to a slide rail mechanism having a lock member that restricts relative movement of an upper rail with respect to a lower rail and a vehicle seat including the slide rail mechanism.
　従来、車体フロアに対してシート本体を前後方向にスライド移動可能なスライドレール機構を備えた車両用シートが知られている。
　スライドレール機構は、車体フロアに固定されるロアレールと、シート本体に固定され、ロアレールに相対移動可能に支持されるアッパレールと、ロアレール及びアッパレールの相対移動を規制するロック部材とを主に備えている。ロック部材を有するスライドレール機構として、乗員がハンドルを操作することで、ロアレールに対するアッパレールの相対移動をロック状態又はロック解除状態にする技術が知られている（例えば、特許文献１）。 2. Description of the Related Art Conventionally, a vehicle seat having a slide rail mechanism that can slide a seat body in a front-rear direction with respect to a vehicle body floor is known.
The slide rail mechanism mainly includes a lower rail that is fixed to the vehicle body floor, an upper rail that is fixed to the seat body and is supported so as to be relatively movable on the lower rail, and a lock member that restricts relative movement of the lower rail and the upper rail. . As a slide rail mechanism having a lock member, a technique is known in which the relative movement of the upper rail with respect to the lower rail is brought into a locked state or an unlocked state by an occupant operating a handle (for example, Patent Document 1).
　特許文献１に記載のシートスライド装置は、図７に示すように、ロアレール１１０と、アッパレール１２０と、ロックレバー１３０と、ハンドル１５０とを主に備えており、ハンドル１５０の操作に伴い、ロアレール１１０のロック孔１１６に対して、アッパレール１２０の開放孔１２５を介して、ロックレバー１３０のロック爪１３６を係脱可能に連結させる構成となっており、ロアレール１１０に対するアッパレール１２０の相対移動を規制することができる。
　ハンドル１５０は、ロックレバー１３０の連動支持部１４０内に挿設されており、ロックレバー１３０に対して相対回動可能に支持されている。ロックレバー１３０は、アッパレール１２０内に挿設されており、ハンドル１５０の回動と連動して、アッパレール１２０に対して回動可能に支持されている。 As shown in FIG. 7, the seat slide device described in Patent Document 1 mainly includes a lower rail 110, an upper rail 120, a lock lever 130, and a handle 150. As the handle 150 is operated, the lower rail 110 is provided. The lock claw 136 of the lock lever 130 is detachably connected to the lock hole 116 via the opening hole 125 of the upper rail 120, and the relative movement of the upper rail 120 with respect to the lower rail 110 is restricted. Can do.
The handle 150 is inserted into the interlocking support portion 140 of the lock lever 130 and is supported so as to be rotatable relative to the lock lever 130. The lock lever 130 is inserted into the upper rail 120 and is supported so as to be rotatable with respect to the upper rail 120 in conjunction with the rotation of the handle 150.
　また、ロックレバー１３０は、ハンドル１５０を付勢するコイルバネ１３７を備えており、コイルバネ１３７の一部分が、ハンドル１５０の外表面に形成された掛け止め溝１５１に掛け止めされ、コイルバネ１３７の一部分と隣接した部分が、連動支持部１４０に形成された係止溝１４６に係止されている。コイルバネ１３７は、ロック孔１１６にロック爪１３６を係合させる位置にハンドル１５０を付勢している。
　このように、ハンドル１５０は、コイルバネ１３７によってアッパレール１２０のロック状態側に付勢されて構成されているため、ロック機構の解除防止機能を高めることができる。 Further, the lock lever 130 includes a coil spring 137 that biases the handle 150, and a part of the coil spring 137 is latched in a latch groove 151 formed on the outer surface of the handle 150, and is adjacent to a part of the coil spring 137. This portion is locked in a locking groove 146 formed in the interlocking support portion 140. The coil spring 137 urges the handle 150 to a position where the lock claw 136 is engaged with the lock hole 116.
Thus, since the handle 150 is configured to be biased toward the locked state of the upper rail 120 by the coil spring 137, it is possible to enhance the release prevention function of the lock mechanism.
特開２０１２－１１１３７８号公報JP 2012-111378 A
　しかし、特許文献１のようなシートスライド装置は、ロック孔１１６にロック爪１３６を係脱可能に係合させることによりアッパレール１２０の相対移動を規制するロック機構を有するものの、このロック爪１３６及びロック孔１１６の形状、配置については特に配慮されていなかった。そのため、ロック爪１３６及びロック孔１１６の係合強度が摩耗により低下した場合、又はロック爪１３６及びロック孔１１６の係脱操作が困難な場合には、このロック機構の係合機能又は係脱操作機能が低下する恐れがあった。
　そこで、ロック爪とロック孔による係合強度を確保すると共に、係脱操作を容易にさせたスライドレール機構が望まれていた。 However, the seat slide device as in Patent Document 1 has a lock mechanism that restricts the relative movement of the upper rail 120 by detachably engaging the lock claw 136 with the lock hole 116. No particular consideration was given to the shape and arrangement of the holes 116. Therefore, when the engagement strength of the lock claw 136 and the lock hole 116 is reduced due to wear, or when the engagement / disengagement operation of the lock claw 136 and the lock hole 116 is difficult, the engagement function or engagement / disengagement operation of the lock mechanism is performed. There was a risk that the function would deteriorate.
Therefore, there has been a demand for a slide rail mechanism that ensures the engagement strength between the lock claw and the lock hole and facilitates the engagement / disengagement operation.
　本発明は、上記の課題に鑑みてなされたものであり、本発明の目的は、ロアレールに対するアッパレールの相対移動を規制するロック機構を備え、このロック機構を構成する係合部と被係合部による係合強度を確保すると共に、係合部と被係合部の係脱操作を容易にさせたスライドレール機構及び車両用シートを提供することにある。 The present invention has been made in view of the above-described problems, and an object of the present invention is to include a lock mechanism that restricts the relative movement of the upper rail with respect to the lower rail, and an engaging portion and an engaged portion constituting the lock mechanism. It is another object of the present invention to provide a slide rail mechanism and a vehicle seat that ensure the engagement strength by the above and facilitate the engaging / disengaging operation of the engaging portion and the engaged portion.
　前記課題は、本発明のスライドレール機構によれば、車体フロアに固定されるロアレールと、該ロアレールに対して相対移動可能に支持されるアッパレールと、前記ロアレールに設けられた係合部に係合可能な被係合部を有し、該被係合部が前記係合部に係合する係合位置と、前記被係合部が前記係合部から離脱した離脱位置との間を移動可能な状態で前記アッパレールに取り付けられたロック部材と、乗員の操作により、前記ロック部材を前記係合位置又は前記離脱位置に移動させる操作ハンドルと、を備え、前記ロック部材は、前記アッパレールの移動方向と直交する該アッパレールの幅方向において、該アッパレールに対して軸支される回動軸を備え、前記被係合部の前記係合位置と前記離脱位置は、前記回動軸を介して互いに上下反対側に位置していること、により解決される。 According to the slide rail mechanism of the present invention, the subject is engaged with the lower rail fixed to the vehicle floor, the upper rail supported to be relatively movable with respect to the lower rail, and the engaging portion provided on the lower rail. It has a possible engaged portion, and is movable between an engaging position where the engaged portion engages with the engaging portion and a disengagement position where the engaged portion is separated from the engaging portion. A lock member attached to the upper rail in a state in which the lock member is moved, and an operation handle that moves the lock member to the engagement position or the disengagement position by an occupant's operation, and the lock member moves in the moving direction of the upper rail. In the width direction of the upper rail orthogonal to the upper rail, and the engagement position and the disengagement position of the engaged portion are vertically moved with respect to each other via the rotation shaft. That are positioned on opposite sides, it is solved by.
　このように、ロック部材の被係合部の係合位置と離脱位置は、回動軸を介して互いに上下反対側に位置しているため、被係合部の係合位置又は離脱位置が回動軸と同じ高さに位置する場合と比較して、被係合部が回動軸を中心として上下に回動する際に、被係合部によるアッパレール移動方向の移動範囲を一層小さくすることができる。
　その結果、ロアレールに備えられた係合部に対して、ロック部材に備えらえた被係合部を上下方向に移動させて係脱可能に係合させるロック機構において、被係合部が上下に回動する際にアッパレール移動方向の移動を極力小さくすることにより、係合部に対する係脱操作が円滑になり、摩耗を軽減できる。従って、ロック機構を構成する係合部と被係合部の係合強度を確保し、係脱操作の機能性を向上させたスライドレール機構を提供することができる。 As described above, since the engaged position and the disengaged position of the engaged portion of the lock member are located on the opposite sides of each other via the rotation shaft, the engaged position or the disengaged position of the engaged portion is rotated. Compared with the case where it is located at the same height as the moving shaft, when the engaged portion rotates up and down around the rotating shaft, the moving range in the upper rail moving direction by the engaged portion is further reduced. Can do.
As a result, in the lock mechanism in which the engaged portion provided on the lower rail moves the engaged portion provided on the lock member in the up and down direction so as to be detachably engaged, the engaged portion is moved up and down. By making the movement in the upper rail moving direction as small as possible when rotating, the engaging / disengaging operation with respect to the engaging portion becomes smooth, and wear can be reduced. Therefore, it is possible to provide a slide rail mechanism in which the engagement strength of the engaging portion and the engaged portion constituting the lock mechanism is ensured and the functionality of the engaging / disengaging operation is improved.
　このとき、前記回動軸は、上下方向において前記被係合部の前記係合位置と前記離脱位置の中央に配置されていると良い。
　このように、回動軸は、上下方向において被係合部の係合位置と離脱位置の中央に配置されているため、被係合部が、係合位置と離脱位置の間において、回動軸を中心として上下に回動する際に、被係合部によるアッパレール移動方向の移動範囲を一層小さくできる。
　従って、ロック機構を構成する係合部と被係合部の摩耗を軽減し、係脱操作の機能性を一層向上させることができる。 At this time, the rotation shaft may be disposed in the center between the engagement position and the disengagement position of the engaged portion in the vertical direction.
As described above, the pivot shaft is arranged in the center between the engagement position and the disengagement position of the engaged portion in the vertical direction, so that the engaged portion rotates between the engagement position and the disengagement position. When rotating up and down about the axis, the range of movement in the upper rail movement direction by the engaged portion can be further reduced.
Therefore, wear of the engaging portion and the engaged portion constituting the lock mechanism can be reduced, and the functionality of the engagement / disengagement operation can be further improved.
　このとき、前記係合部と前記被係合部は、ロック溝とロック爪からなり、前記ロック溝は、対向する第一側壁部と第二側壁部と、該第二側壁部及び前記第一側壁部を連結する底壁部と、を備え、前記第一側壁部及び前記第二側壁部は、前記底壁部から開口部に向って互いに広がる形状を備えると良い。
　このように、係合部と被係合部は、ロック溝とロック爪からなり、ロック溝の第一側壁部及び第二側壁部は、底壁部から開口部に向って互いに広がる形状を備えるため、ロック爪が回動軸を中心としてロック溝に係合する方向に回動する際に、第一側壁部及び第二側壁部の広がり形状に案内されることとなり、係合部と被係合部の係合を確実に行うことができ、係合強度を確保できる。また、係合部と被係合部の係脱操作が一層容易になる。 At this time, the engaging part and the engaged part are formed of a lock groove and a lock claw, and the lock groove includes a first side wall part, a second side wall part, the second side wall part, and the first side which face each other. A bottom wall portion connecting the side wall portions, and the first side wall portion and the second side wall portion preferably have a shape that spreads from the bottom wall portion toward the opening.
As described above, the engaging portion and the engaged portion include the lock groove and the lock claw, and the first side wall portion and the second side wall portion of the lock groove have shapes that spread from the bottom wall portion toward the opening portion. Therefore, when the lock claw rotates about the rotation axis in the direction of engaging with the lock groove, the lock claw is guided to the expanded shape of the first side wall and the second side wall, and the engagement portion and the engaged portion are engaged. The mating portion can be reliably engaged, and the engagement strength can be ensured. Further, the engaging / disengaging operation between the engaging portion and the engaged portion is further facilitated.
　このとき、前記第一側壁部は、前記第二側壁部よりも前記回動軸側に位置し、前記ロック溝のうち、前記第一側壁部は、前記ロック爪による前記回動軸を中心とした回動軌跡に沿わせて傾斜していると良い。
　このように、ロック溝の第一側壁部は、ロック爪による回動軸を中心とした回動軌跡に沿わせて傾斜しているため、ロック溝とロック爪の係脱操作が一層容易になる。 At this time, the first side wall portion is located closer to the rotation shaft than the second side wall portion, and the first side wall portion of the lock groove is centered on the rotation shaft by the lock claw. It should be inclined along the turning trajectory.
As described above, since the first side wall portion of the lock groove is inclined along the rotation locus around the rotation axis by the lock claw, the lock groove and the lock claw can be more easily engaged and disengaged. .
　このとき、前記係合部と前記被係合部は、それぞれ複数形成されたロック溝とロック爪からなり、該ロック爪は、前記アッパレールの移動方向において前記回動軸側に配置された第一ロック爪と、該第一ロック爪に対して前記回動軸逆側に配置された第二ロック爪とを備え、前記係合位置は、前記ロック爪のうち、前記第二ロック爪と前記ロック溝とが当接する位置であると良い。
　このように、係合位置は、複数のロック爪のうち、第二ロック爪とロック溝とが当接する位置であり、第二ロック爪は、係合位置と離脱位置の間において、回動軸を中心として上下に回動する際に、第一ロック爪よりもアッパレール移動方向の移動範囲を小さくできることから、ロック溝とロック爪の摩耗を軽減し、係脱操作の機能性をより向上できる。
　また、係合部と被係合部は、それぞれ複数形成されたロック溝とロック爪からなるため、ロック機構を構成する複数のロック溝とロック爪の係合によって係合強度を確保することができる。 At this time, the engaging portion and the engaged portion each include a plurality of lock grooves and lock claws, and the lock claws are arranged on the rotating shaft side in the moving direction of the upper rail. A lock claw and a second lock claw disposed on the opposite side of the rotation shaft with respect to the first lock claw, wherein the engagement position is the second lock claw and the lock of the lock claw. It is good if it is a position where the groove contacts.
Thus, the engagement position is a position where the second lock claw and the lock groove abut out of the plurality of lock claws, and the second lock claw rotates between the engagement position and the disengagement position. Since the movement range in the upper rail moving direction can be made smaller than that of the first lock claw when pivoting up and down around the center, wear of the lock groove and the lock claw can be reduced, and the functionality of the engagement / disengagement operation can be further improved.
In addition, since the engaging portion and the engaged portion are each formed of a plurality of lock grooves and lock claws, the engagement strength can be ensured by the engagement of the lock grooves and lock claws constituting the lock mechanism. it can.
　このとき、前記ロック部材は、前記操作ハンドルを保持する保持部を備え、前記操作ハンドルは、前記ロック部材と一体的に回動可能な状態で前記保持部に保持されていると良い。
　このように、操作ハンドルは、ロック部材と一体的に回動可能な状態で保持部に保持されているため、乗員の操作ハンドルの操作によってロック部材を連動させてロック機構を機能させることができる。 At this time, the lock member may include a holding portion that holds the operation handle, and the operation handle may be held by the holding portion so as to be rotatable integrally with the lock member.
As described above, since the operation handle is held by the holding portion so as to be rotatable integrally with the lock member, the lock mechanism can be operated by operating the operation handle of the occupant to interlock the lock member. .
　このとき、前記ロック部材は、該ロック部材のうち、前記保持部を備える部分が、前記アッパレールの前記操作ハンドル側の端部から突出するようにして前記アッパレール内に挿設されていると良い。
　このように、操作ハンドルは、アッパレール内に挿設されたロック部材のうち、アッパレールから突出した保持部に保持されているため、操作ハンドルがロック部材に対して回動する際に、操作ハンドルとアッパレールとが当接しない構成となる。
　従って、操作ハンドルとロック部材の相対回動範囲を広げることができ、ロック状態維持機能を高めることができる。 At this time, the lock member may be inserted into the upper rail such that a portion of the lock member including the holding portion protrudes from an end of the upper rail on the operation handle side.
As described above, since the operation handle is held by the holding portion protruding from the upper rail among the lock members inserted in the upper rail, when the operation handle rotates with respect to the lock member, The upper rail is not in contact with the upper rail.
Therefore, the relative rotation range of the operation handle and the lock member can be expanded, and the lock state maintaining function can be enhanced.
　このとき、上記のスライドレール機構を備える車両用シートとして構成しても良い。
　このように構成することにより、ロアレールに対するアッパレールの相対移動を規制するロック機構を有し、このロック機構を構成する係合部と被係合部による係合強度を確保し、係合部と被係合部の係脱操作を容易にさせたスライドレール機構を備えた車両用シートを得ることができる。 At this time, you may comprise as a vehicle seat provided with said slide rail mechanism.
With this configuration, the lock mechanism that restricts the relative movement of the upper rail with respect to the lower rail is provided. Engagement strength between the engagement portion and the engaged portion constituting the lock mechanism is ensured, and the engagement portion and the covered portion are secured. A vehicle seat provided with a slide rail mechanism that facilitates engaging / disengaging of the engaging portion can be obtained.
　請求項１の発明によれば、ロック部材の被係合部の係合位置と離脱位置は、回動軸を介して互いに上下反対側に位置しているため、被係合部の係合位置又は離脱位置が回動軸と同じ高さに位置する場合と比較して、被係合部が回動軸を中心として上下に回動する際に、被係合部によるアッパレール移動方向の移動範囲を一層小さくすることができる。
　その結果、ロアレールに備えられた係合部に対して、ロック部材に備えらえた被係合部を上下方向に移動させて係脱可能に係合させるロック機構において、被係合部が上下に回動する際にアッパレール移動方向の移動を極力小さくすることにより、係合部に対する係脱操作が円滑になり、摩耗を軽減できる。従って、ロック機構を構成する係合部と被係合部の係合強度を確保し、係脱操作の機能性を向上させたスライドレール機構を提供することができる。 According to the first aspect of the present invention, the engaged position and the disengaged position of the engaged portion of the lock member are located on the opposite sides of each other via the rotation shaft. Or, compared to the case where the disengagement position is located at the same height as the rotation shaft, when the engaged portion rotates up and down around the rotation shaft, the movement range in the upper rail movement direction by the engaged portion. Can be further reduced.
As a result, in the lock mechanism in which the engaged portion provided on the lower rail moves the engaged portion provided on the lock member in the up and down direction so as to be detachably engaged, the engaged portion is moved up and down. By making the movement in the upper rail moving direction as small as possible when rotating, the engaging / disengaging operation with respect to the engaging portion becomes smooth, and wear can be reduced. Therefore, it is possible to provide a slide rail mechanism in which the engagement strength of the engaging portion and the engaged portion constituting the lock mechanism is ensured and the functionality of the engaging / disengaging operation is improved.
　請求項２の発明によれば、回動軸は、上下方向において被係合部の係合位置と離脱位置の中央に配置されているため、被係合部が、係合位置と離脱位置の間において、回動軸を中心として上下に回動する際に、被係合部によるアッパレール移動方向の移動範囲を一層小さくできる。従って、ロック機構を構成する係合部と被係合部の摩耗を軽減し、係脱操作の機能性を一層向上させることができる。
　請求項３の発明によれば、係合部と被係合部は、ロック溝とロック爪からなり、ロック溝の第一側壁部及び第二側壁部は、底壁部から開口部に向って互いに広がる形状を備えるため、ロック爪が回動軸を中心としてロック溝に係合する方向に回動する際に、第一側壁部及び第二側壁部の広がり形状に案内されることとなり、係合部と被係合部の係合を確実に行うことができ、係合強度を確保できる。また、係合部と被係合部の係脱操作が一層容易になる。 According to the invention of claim 2, since the rotation shaft is arranged at the center between the engagement position and the disengagement position of the engaged portion in the vertical direction, the engaged portion is located between the engagement position and the disengagement position. In the meantime, the range of movement in the upper rail movement direction by the engaged portion can be further reduced when the upper and lower parts are turned up and down around the turning axis. Therefore, wear of the engaging portion and the engaged portion constituting the lock mechanism can be reduced, and the functionality of the engagement / disengagement operation can be further improved.
According to invention of Claim 3, an engaging part and an engaged part consist of a lock groove and a lock nail | claw, and the 1st side wall part and 2nd side wall part of a lock groove are toward an opening part from a bottom wall part. Since the locking claw is rotated in the direction of engaging the lock groove with the rotation axis as the center, the locking claw is guided to the expanded shape of the first side wall and the second side wall. The mating portion and the engaged portion can be reliably engaged, and the engagement strength can be ensured. Further, the engaging / disengaging operation between the engaging portion and the engaged portion is further facilitated.
　請求項４の発明によれば、ロック溝の第一側壁部は、ロック爪による回動軸を中心とした回動軌跡に沿わせて傾斜しているため、ロック溝とロック爪の係脱操作が一層容易になる。
　請求項５の発明によれば、係合位置は、複数のロック爪のうち、第二ロック爪とロック溝とが当接する位置であり、第二ロック爪は、係合位置と離脱位置の間において、回動軸を中心として上下に回動する際に、第一ロック爪よりもアッパレール移動方向の移動範囲を小さくできることから、ロック溝とロック爪の摩耗を軽減し、係脱操作の機能性をより向上できる。
　また、係合部と被係合部は、それぞれ複数形成されたロック溝とロック爪からなるため、ロック機構を構成する複数のロック溝とロック爪の係合によって係合強度を確保することができる。 According to the invention of claim 4, since the first side wall portion of the lock groove is inclined along the rotation locus around the rotation axis by the lock claw, the lock groove and the lock claw are engaged and disengaged. Becomes easier.
According to the invention of claim 5, the engagement position is a position where the second lock claw and the lock groove abut out of the plurality of lock claws, and the second lock claw is between the engagement position and the disengagement position. , When moving up and down around the rotation axis, the range of movement in the upper rail movement direction can be made smaller than that of the first lock claw, reducing wear on the lock groove and lock claw, and engaging / disengaging operation functionality Can be improved more.
In addition, since the engaging portion and the engaged portion are each formed of a plurality of lock grooves and lock claws, the engagement strength can be ensured by the engagement of the lock grooves and lock claws constituting the lock mechanism. it can.
　請求項６の発明によれば、操作ハンドルは、ロック部材と一体的に回動可能な状態で保持部に保持されているため、乗員の操作ハンドルの操作によってロック部材を連動させてロック機構を機能させることができる。
　請求項７の発明によれば、操作ハンドルは、アッパレール内に挿設されたロック部材のうち、アッパレールから突出した保持部に保持されているため、操作ハンドルがロック部材に対して回動する際に、操作ハンドルとアッパレールとが当接しない構成となる。
　従って、操作ハンドルとロック部材の相対回動範囲を広げることができ、ロック状態維持機能を高めることができる。
　請求項８の発明によれば、上記の効果を奏するスライドレール機構を備えた車両用シートを得ることができる。 According to the sixth aspect of the present invention, since the operation handle is held by the holding portion so as to be rotatable integrally with the lock member, the lock mechanism is interlocked by operating the operation handle of the occupant. Can function.
According to the invention of claim 7, since the operation handle is held by the holding portion protruding from the upper rail among the lock members inserted in the upper rail, when the operation handle rotates with respect to the lock member. In addition, the operation handle and the upper rail are not in contact with each other.
Therefore, the relative rotation range of the operation handle and the lock member can be expanded, and the lock state maintaining function can be enhanced.
According to invention of Claim 8, the vehicle seat provided with the slide rail mechanism which has said effect can be obtained.
本発明に係る車両用シートの概略斜視図である。1 is a schematic perspective view of a vehicle seat according to the present invention. 本発明に係るスライドレール機構の概略斜視図である。It is a schematic perspective view of the slide rail mechanism which concerns on this invention. 図２のスライドレール機構を分解して示した概略斜視図である。It is the schematic perspective view which decomposed | disassembled and showed the slide rail mechanism of FIG. 図２のスライドレール機構を側面側から見た部分断面図である。It is the fragmentary sectional view which looked at the slide rail mechanism of Drawing 2 from the side. 図２のスライドレール機構のＡ－Ａ断面を真横から見た部分拡大図であって、係合爪が係合溝に係合した状態を示す説明図である。FIG. 3 is a partial enlarged view of the slide rail mechanism of FIG. 2 taken along the line AA from the side, and is an explanatory view showing a state in which an engaging claw is engaged with an engaging groove. 図２のスライドレール機構のＢ－Ｂ断面を真横から見た部分拡大図であって、係合爪が係合溝に係合した係合位置と、離脱した離脱位置を示す説明図である。FIGS. 3A and 3B are partial enlarged views of a section BB of the slide rail mechanism of FIG. 2 as viewed from the side, and are explanatory views showing an engagement position where an engagement claw is engaged with an engagement groove and a separation position where the engagement claw is detached. 従来例のシートスライド装置を備えた車両用シートの説明図である。It is explanatory drawing of the vehicle seat provided with the seat slide apparatus of the prior art example.
　以下、本発明の実施形態について図を参照して説明する。なお、以下に説明する部材、配置等は、本発明を限定するものではなく、本発明の趣旨に沿って各種改変することができる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the member, arrangement | positioning, etc. which are demonstrated below do not limit this invention, and can be variously changed in accordance with the meaning of this invention.
　本実施形態は、ロアレールに対してアッパレールの相対移動を規制するロック機構を有し、このロック機構は、ロック爪が回動軸を中心として上方に回動してロック溝に係合する係合位置と、ロック爪が下方に回動してロック溝から離脱する離脱位置において、係合位置と離脱位置の上下方向の中央に回動軸を配置させたことを特徴とするスライドレール機構を備えた車両用シートの発明に関するものである。
　本実施形態の車両用シートＳは、図１に示すように、シートクッション１と、シートバック２と、ヘッドレスト３とを備えるシート本体と、シート本体を前後方向に移動可能な状態で車体フロアに取り付けるためのスライドレール機構４とから構成されている。
　なお、車両用シートＳのシートバック２に対して乗員が着座する側が前方側となる。 The present embodiment has a lock mechanism that restricts the relative movement of the upper rail with respect to the lower rail, and this lock mechanism engages with the lock groove by rotating the lock claw upward about the rotation axis. The slide rail mechanism is characterized in that a rotation shaft is arranged at the center between the engagement position and the disengagement position in the vertical direction at the position and the disengagement position where the lock claw rotates downward and disengages from the lock groove. The present invention relates to a vehicle seat invention.
As shown in FIG. 1, the vehicle seat S of the present embodiment is mounted on a vehicle body floor in a state in which a seat body including a seat cushion 1, a seat back 2, and a headrest 3 is movable in the front-rear direction. It comprises a slide rail mechanism 4 for mounting.
The side on which the occupant is seated with respect to the seat back 2 of the vehicle seat S is the front side.
　シートクッション１は、乗員を下方から支持する着座部であって、骨格となる不図示のクッションフレームに、クッションパッド１ａを載置して、クッションパッド１ａの上から表皮１ｂによって被覆されて構成されている。
　シートバック２は、乗員の背中を後方から支持する背もたれ部であって、骨格となる不図示のシートバックフレームに、クッションパッド２ａを載置して、表皮２ｂで被覆されて構成されている。
　ヘッドレスト３は、乗員の頭を後方から支持する頭部であって、芯材となる不図示のピラーにクッションパッド３ａを配設させて表皮３ｂで被覆して形成される。 The seat cushion 1 is a seating portion that supports an occupant from below, and is configured such that a cushion pad 1a is placed on a cushion frame (not shown) serving as a skeleton and is covered with a skin 1b from above the cushion pad 1a. ing.
The seat back 2 is a backrest portion that supports the back of the occupant from the back, and is configured by placing a cushion pad 2a on a seat back frame (not shown) serving as a skeleton and covering with a skin 2b.
The headrest 3 is a head that supports the occupant's head from behind, and is formed by disposing a cushion pad 3a on a pillar (not shown) serving as a core material and covering it with a skin 3b.
　本実施形態の車両用シートＳは、図１に示すように、シートクッション１と、シートバック２と、ヘッドレスト３とを備えるシート本体と、シート本体を前後方向に移動可能な状態で車体フロアに取り付けるためのスライドレール機構４とから構成されている。
　なお、車両用シートＳのシートバック２に対して乗員が着座する側が前方側となる。 As shown in FIG. 1, the vehicle seat S of the present embodiment is mounted on a vehicle body floor in a state in which a seat body including a seat cushion 1, a seat back 2, and a headrest 3 is movable in the front-rear direction. It comprises a slide rail mechanism 4 for mounting.
The side on which the occupant is seated with respect to the seat back 2 of the vehicle seat S is the front side.
　シートクッション１は、乗員を下方から支持する着座部であって、骨格となる不図示のクッションフレームに、クッションパッド１ａを載置して、クッションパッド１ａの上から表皮１ｂによって被覆されて構成されている。
　シートバック２は、乗員の背中を後方から支持する背もたれ部であって、骨格となる不図示のシートバックフレームに、クッションパッド２ａを載置して、表皮２ｂで被覆されて構成されている。
　ヘッドレスト３は、乗員の頭を後方から支持する頭部であって、芯材となる不図示のピラーにクッションパッド３ａを配設させて表皮３ｂで被覆して形成される。 The seat cushion 1 is a seating portion that supports an occupant from below, and is configured such that a cushion pad 1a is placed on a cushion frame (not shown) serving as a skeleton and is covered with a skin 1b from above the cushion pad 1a. ing.
The seat back 2 is a backrest portion that supports the back of the occupant from the back, and is configured by placing a cushion pad 2a on a seat back frame (not shown) serving as a skeleton and covering with a skin 2b.
The headrest 3 is a head that supports the occupant's head from behind, and is formed by disposing a cushion pad 3a on a pillar (not shown) serving as a core material and covering it with a skin 3b.
　スライドレール機構４は、上下方向においてシート本体と車体フロアとの間に配設されており、図２に示すように、車体フロアに固定されるロアレール１０と、ロアレール１０に対して相対移動可能に支持され、シートクッション１に固定されるアッパレール２０と、アッパレール２０の内部に挿設され、アッパレール２０の相対移動を規制するロック部材３０と、ロック部材３０に係止され、アッパレール２０を相対移動不能なロック状態に維持するバネ部材３７と、ロック部材３０の一端に支持された操作ハンドル５０と、から主に構成されている。 The slide rail mechanism 4 is disposed between the seat main body and the vehicle body floor in the vertical direction, and is movable relative to the lower rail 10 and the lower rail 10 fixed to the vehicle body floor as shown in FIG. The upper rail 20 that is supported and fixed to the seat cushion 1, the lock member 30 that is inserted into the upper rail 20 and restricts the relative movement of the upper rail 20, and is locked to the lock member 30, so that the upper rail 20 cannot be relatively moved. The spring member 37 is maintained mainly in a locked state, and the operation handle 50 is supported by one end of the lock member 30.
　ロアレール１０は、金属材料から形成された長尺な中空体からなり、左右方向に所定の間隔をおいて一対に配置され、前端部及び後端部が開口となるように構成されている。
　なお、ロアレール１０の材質は、金属材料に限定されることなく、樹脂材料等、他の材料を用いても良い。 The lower rail 10 is formed of a long hollow body made of a metal material, and is arranged in a pair at a predetermined interval in the left-right direction, and is configured such that a front end portion and a rear end portion are openings.
The material of the lower rail 10 is not limited to a metal material, and other materials such as a resin material may be used.
　ロアレール１０は、図３に示すように、車体フロアに固定される底板部１１と、底板部１１の左右両端部から上方に屈曲された外側板部１２と、左右の外側板部１２の上端部から左右内側に屈曲された上板部１３と、左右の上板部１３から下方に屈曲された内側板部１４とを備えている。
　ロアレール１０には、底板部１１と、左右の外側板部１２と、左右の上板部１３と、左右の内側板部１４とで囲まれた収容室１５が設けられており、収容室１５は、左右の内側板部１４の間に形成された開口を備えている。
　左右の内側板部１４の下方端部には、略中央部分から前方部分にわたって上方に切り欠かれた略コ字状からなるロック溝１６が複数設けられている。ロック溝１６の詳細については後述する。 As shown in FIG. 3, the lower rail 10 includes a bottom plate portion 11 fixed to the vehicle body floor, an outer plate portion 12 bent upward from both left and right end portions of the bottom plate portion 11, and upper end portions of the left and right outer plate portions 12. The upper plate portion 13 is bent inward from the left and right sides, and the inner plate portion 14 is bent downward from the left and right upper plate portions 13.
The lower rail 10 is provided with a storage chamber 15 surrounded by a bottom plate portion 11, left and right outer plate portions 12, left and right upper plate portions 13, and left and right inner plate portions 14. , An opening formed between the left and right inner plate portions 14 is provided.
A plurality of lock grooves 16 each having a substantially U-shape cut upward from a substantially central portion to a front portion are provided at lower end portions of the left and right inner plate portions 14. Details of the lock groove 16 will be described later.
　アッパレール２０は、ロアレール１０の収容室１５内に挿入された状態でロアレール１０に沿ってスライド移動する長尺体からなり、金属材料等から形成されている。
　アッパレール２０は、図３に示すように、シートクッション１に連結される上板部２１と、上板部２１の左右両端部から下方へ屈曲された内側板部２２と、左右の内側板部２２の下端部から左右外側に屈曲し、上方に突出された案内板部２３とを備えている。
　アッパレール２０には、上板部２１と左右の内側板部２２とで囲まれた収容室２４と、内側板部２２と案内板部２３との間に形成された収容溝２５とが設けられており、収容室２４は下方に開放されており、収容溝２５は上方に開放されて構成されている。 The upper rail 20 is a long body that slides along the lower rail 10 while being inserted into the storage chamber 15 of the lower rail 10, and is formed of a metal material or the like.
As shown in FIG. 3, the upper rail 20 includes an upper plate portion 21 connected to the seat cushion 1, an inner plate portion 22 bent downward from both left and right end portions of the upper plate portion 21, and left and right inner plate portions 22. And a guide plate portion 23 that is bent outward from the lower end portion and protrudes upward.
The upper rail 20 is provided with a storage chamber 24 surrounded by an upper plate portion 21 and left and right inner plate portions 22, and a receiving groove 25 formed between the inner plate portion 22 and the guide plate portion 23. The housing chamber 24 is opened downward, and the housing groove 25 is opened upward.
　上板部２１の前方部分には、下方に切り起こされたストッパ部２６が形成されており、ストッパ部２６は、収容室２４内に入り込むように構成されている。
　左右の内側板部２２及び案内板部２３の下方端部には、前後方向の略中央部分に上方に切り欠かれた略コ字状からなるロック孔２７が複数設けられている。
　左右の内側板部２２の上下方向の中央であって、前後方向においてストッパ部２６とロック孔２７の間には、左右方向に貫通した貫通穴２８が設けられている。 A stopper portion 26 cut and raised downward is formed in the front portion of the upper plate portion 21, and the stopper portion 26 is configured to enter the accommodation chamber 24.
A plurality of lock holes 27 each having a substantially U-shape that is notched upward are provided in the lower end portions of the left and right inner plate portions 22 and the guide plate portion 23 in a substantially central portion in the front-rear direction.
A through-hole 28 penetrating in the left-right direction is provided between the stopper portion 26 and the lock hole 27 in the front-rear direction at the center in the vertical direction of the left and right inner plate portions 22.
　アッパレール２０は、図３に示すように、ロアレール１０の収容室１５内に挿入され、上板部２１及び内側板部２２が、収容室１５の開口から上方に突出し、案内板部２３が、収容室１５のうち、外側板部１２と内側板部１４の間に嵌め込まれるように構成されている。また、ロアレール１０の内側板部１４は、アッパレール２０の収容溝２５内に嵌め込まれるように構成されている。
　ロアレール１０の左右の外側板部１２と、アッパレール２０の左右の案内板部２３との間にはガイド２９が嵌め込まれ、ガイド２９は、ロアレール１０に対してアッパレール２０を前後方向にスライド移動可能にロアレール１０及びアッパレール２０を支持している。 As shown in FIG. 3, the upper rail 20 is inserted into the accommodation chamber 15 of the lower rail 10, the upper plate portion 21 and the inner plate portion 22 protrude upward from the opening of the accommodation chamber 15, and the guide plate portion 23 is accommodated. The chamber 15 is configured to be fitted between the outer plate portion 12 and the inner plate portion 14. Further, the inner plate portion 14 of the lower rail 10 is configured to be fitted into the accommodation groove 25 of the upper rail 20.
A guide 29 is fitted between the left and right outer plate portions 12 of the lower rail 10 and the left and right guide plate portions 23 of the upper rail 20, and the guide 29 is slidable in the front-rear direction with respect to the lower rail 10. The lower rail 10 and the upper rail 20 are supported.
　ロック部材３０は、図３に示すように、金属材料等から形成された長尺体であって、ロアレール１０に対してアッパレール２０を相対移動不能なロック状態から、相対移動可能なロック解除状態に切り替えるために動作する部材からなり、アッパレール２０の収容室２４内に挿設されている。
　ロック部材３０は、ロック部材３０の左右側方に配設され、アッパレール２０の左右の内側板部２２に隣接して前後方向に延出した右側板部３１及び左側板部３２と、右側板部３１及び左側板部３２の後方端部の上面に架設された略平板状の上板部３３と、略中央部分に設けられ、右側板部３１及び左側板部３２から左右外側に突出した凸状の回動軸３４と、回動軸３４に隣接した前方部分に設けられ、左側板部３２を左右内側に湾曲させて形成した略平板状のストッパ板部３５と、右側板部３１及び左側板部３２の後方端部であって、右側板部３１及び左側板部３２から左右外側に突出した複数のロック爪３６と、右側板部３１の前方端部であって、左側板部３２よりも前方側に延出させた部分に設けられた縦断面略コ字状の保持部４０と、から主に構成されている。 As shown in FIG. 3, the lock member 30 is a long body formed of a metal material or the like, and is changed from a locked state in which the upper rail 20 is not relatively movable with respect to the lower rail 10 to an unlocked state in which relative movement is possible. It consists of a member that operates to switch, and is inserted into the accommodation chamber 24 of the upper rail 20.
The lock member 30 is disposed on the left and right sides of the lock member 30, and is adjacent to the left and right inner plate portions 22 of the upper rail 20 and extends in the front-rear direction, the right side plate portion 31 and the left side plate portion 32, and the right side plate portion. 31 and a substantially flat upper plate portion 33 laid on the upper surface of the rear end portion of the left side plate portion 32, and a convex shape provided at a substantially central portion and projecting outward from the right side plate portion 31 and the left side plate portion 32 to the left and right. A substantially flat stopper plate 35 formed by curving the left side plate 32 inwardly in the left and right sides, the right side plate 31 and the left side plate. A plurality of locking claws 36 protruding from the right side plate portion 31 and the left side plate portion 32 to the left and right sides, and a front end portion of the right side plate portion 31, which is more than the left side plate portion 32. A holding portion 40 having a substantially U-shaped longitudinal section provided in a portion extending forward; It is mainly composed of.
　回動軸３４は、略円形状の凸部からなり、アッパレール２０の貫通穴２８に挿嵌して軸支されることにより、ロック部材３０がアッパレール２０に対して回動可能となる。
　詳しく言うと、図４に示すように、ロック部材３０がアッパレール２０の収容室２４内に挿入された後、アッパレール２０のストッパ部２６を下方に折曲させて、右側板部３１及びストッパ板部３５の間の間隙に挿入して係合させることにより、右側板部３１及びストッパ板部３５が左右外側に広がる方向に力が加わることとなる。そして、回動軸３４が貫通穴２８に挿嵌されて軸支される。 The rotation shaft 34 is formed of a substantially circular convex portion, and is inserted into the through hole 28 of the upper rail 20 and pivotally supported, whereby the lock member 30 can be rotated with respect to the upper rail 20.
More specifically, as shown in FIG. 4, after the lock member 30 is inserted into the storage chamber 24 of the upper rail 20, the stopper portion 26 of the upper rail 20 is bent downward to form the right side plate portion 31 and the stopper plate portion. By inserting and engaging with the gap between the right side plate portion 35 and the right side plate portion 31 and the stopper plate portion 35, a force is applied in the direction in which the right and left outer sides expand. The rotating shaft 34 is inserted into the through hole 28 and is pivotally supported.
　ロック爪３６は、図３に示すように、アッパレール２０のロック孔２７を貫通してロアレール１０のロック溝１６に係脱可能に係合される部材である。
　ロック爪３６がロック溝１６に係合する係合位置にあるとき、アッパレール２０がロアレール１０に対してロック状態となり、ロック爪３６がロック溝１６から離脱する離脱位置にあるとき、アッパレール２０はロアレール１０に対してアンロック状態となるように構成されている。
　ロック爪３６は、略矩形板状に形成された４つの左ロック爪３６ａと、略矩形板状に形成され、左右外側の端部が互いに連結された１つの右ロック爪３６ｂと、から構成されている。ロック爪３６の詳細については後述する。 As shown in FIG. 3, the lock claw 36 is a member that detachably engages with the lock groove 16 of the lower rail 10 through the lock hole 27 of the upper rail 20.
When the lock claw 36 is in the engagement position where it engages with the lock groove 16, the upper rail 20 is locked with respect to the lower rail 10, and when the lock claw 36 is in the release position where the lock claw 36 is detached from the lock groove 16, the upper rail 20 is 10 is configured to be unlocked.
The lock claw 36 includes four left lock claws 36a formed in a substantially rectangular plate shape, and one right lock claw 36b formed in a substantially rectangular plate shape and having left and right outer ends connected to each other. ing. Details of the lock claw 36 will be described later.
　バネ部材３７は、公知なねじりコイルバネであって、ロック爪３６がロック溝１６に係合する係合位置に位置するようにロック部材３０を維持している。
　バネ部材３７は、図３に示すように、バネ本体部３７ａと、バネ本体部３７ａから前方側及び後方側にそれぞれ延出した前方バネ腕部３７ｂ、後方バネ腕部３７ｃと、から構成されており、ロック部材３０のうち、回動軸３４と保持部４０との間に配置されている。
　バネ本体部３７ａは、アッパレール２０の内側板部２２とロック部材３０の右側板部３１の間に嵌めこまれており、ロック部材３０の左右方向の移動を規制すると共に、ロック部材３０の変形を防止する機能を果たしている。
　前方バネ腕部３７ｂは、図４に示すように、アッパレール２０の前方端部から突出し、保持部４０に掛け止めされている。後方バネ腕部３７ｃは、右側板部３１の上面に設けられ、左側板部３２側に向かって突出した略Ｌ字形状の引掛け部３８に引っ掛けられている。 The spring member 37 is a known torsion coil spring, and maintains the lock member 30 so that the lock claw 36 is located at an engagement position where the lock claw 36 is engaged with the lock groove 16.
As shown in FIG. 3, the spring member 37 is composed of a spring main body portion 37a, a front spring arm portion 37b extending from the spring main body portion 37a to the front side and the rear side, and a rear spring arm portion 37c. The lock member 30 is disposed between the rotation shaft 34 and the holding portion 40.
The spring main body portion 37a is fitted between the inner plate portion 22 of the upper rail 20 and the right plate portion 31 of the lock member 30 to restrict the movement of the lock member 30 in the left-right direction and to deform the lock member 30. Plays a function to prevent.
As shown in FIG. 4, the front spring arm portion 37 b protrudes from the front end portion of the upper rail 20 and is hooked to the holding portion 40. The rear spring arm portion 37 c is provided on the upper surface of the right side plate portion 31 and is hooked by a substantially L-shaped hook portion 38 that protrudes toward the left side plate portion 32.
　保持部４０は、操作ハンドルの延出端部を保持する部分であって、図４に示すように、右側板部３１から連続して前方側に延出した側板部４１と、側板部４１の上端部から左右内側に屈曲された上板部４２と、側板部４１の下端部から左右内側に屈曲された底板部４３と、上板部４２の左端部から下方に屈曲された案内部４４と、から主に構成されている。 The holding portion 40 is a portion that holds the extended end portion of the operation handle, and as shown in FIG. 4, a side plate portion 41 that continuously extends from the right side plate portion 31 to the front side, and a side plate portion 41. An upper plate portion 42 bent from the upper end portion to the left and right inner sides, a bottom plate portion 43 bent from the lower end portion of the side plate portion 41 to the left and right inner sides, and a guide portion 44 bent downward from the left end portion of the upper plate portion 42, , Mainly consists of.
　保持部４０には、側板部４１と上板部４２と底板部４３とで囲まれた空間である保持領域４５が形成されている。
　側板部４１の上面には、下方に窪んだ略Ｕ字形状の係止溝４６が設けられている。
　係止溝４６の開口幅は、バネ部材３７の線径と略同じ大きさ又はバネ部材３７の線径よりもやや小さくなるように形成されている。
　このように、係止溝４６の開口の前後幅が狭まることとなり、係止溝４６に係止されたバネ部材３７の脱落を防止することができる。 The holding portion 40 is formed with a holding region 45 that is a space surrounded by the side plate portion 41, the upper plate portion 42, and the bottom plate portion 43.
A substantially U-shaped locking groove 46 recessed downward is provided on the upper surface of the side plate portion 41.
The opening width of the locking groove 46 is formed to be approximately the same as the wire diameter of the spring member 37 or slightly smaller than the wire diameter of the spring member 37.
Thus, the front-rear width of the opening of the locking groove 46 is narrowed, and the spring member 37 locked to the locking groove 46 can be prevented from falling off.
　操作ハンドル５０は、図３に示すように、乗員の操作により、バネ部材３７の付勢力に抗してロック爪３６をロック溝１６から離脱させた離脱位置に位置させる棒部材であって、略コ字状に形成されている。
　操作ハンドル５０は、乗員が操作するハンドル本体部５１と、ハンドル本体部５１の左右両端部から後方に屈曲されて延出する左右のハンドル腕部５２とから構成されている。 As shown in FIG. 3, the operation handle 50 is a rod member that is positioned at a disengagement position where the lock claw 36 is disengaged from the lock groove 16 against the urging force of the spring member 37 by the operation of the occupant. It is formed in a U shape.
The operation handle 50 includes a handle body 51 that is operated by an occupant and left and right handle arms 52 that are bent backward and extended from both left and right ends of the handle body 51.
　ハンドル腕部５２の後方端部は、図４に示すように、保持部４０の保持領域４５に挿入されて保持されており、後方端部の外表面には、下方に窪んだ掛け止め溝５３と、掛け止め溝５３よりも後方側に形成され、後方側に下方傾斜する傾斜面５４とが設けられている。
　掛け止め溝５３は、略Ｕ字形状であって左右方向に延出して形成されており、左右方向において係止溝４６と対向して配置されている。
　バネ部材３７の一部分は、掛け止め溝５３に掛け止めされると共に、バネ部材３７の一部分に隣接する部分は、係止溝４６に係止されて構成されている。 As shown in FIG. 4, the rear end portion of the handle arm portion 52 is inserted and held in the holding region 45 of the holding portion 40, and a latch groove 53 that is recessed downward is formed on the outer surface of the rear end portion. And an inclined surface 54 which is formed on the rear side of the latching groove 53 and is inclined downward on the rear side.
The latching groove 53 is substantially U-shaped and extends in the left-right direction, and is disposed to face the locking groove 46 in the left-right direction.
A part of the spring member 37 is latched by the latching groove 53, and a part adjacent to a part of the spring member 37 is latched by the latching groove 46.
　次に、ロック爪３６がロック溝１６に係合する係合位置と、ロック爪３６がロック溝１６から離脱する離脱位置について、図５及び図６に基づいて説明する。
　ロック部材３０が回動軸３４を中心として回動することによって、ロック爪３６は、図５に示すように、ロック溝１６に係合する係合位置と、ロック溝１６から離脱する離脱位置との間を移動することができる。すなわち、ロック爪３６は、回動軸３４を中心として上方に回動するとき、ロック孔２７を貫通した状態でロック溝１６に係合され、回動軸３４を中心として下方に回動するとき、ロック孔２７を貫通した状態でロック溝１６から離脱するように構成されている。 Next, an engagement position where the lock claw 36 engages with the lock groove 16 and a disengagement position where the lock claw 36 separates from the lock groove 16 will be described with reference to FIGS. 5 and 6.
When the lock member 30 is rotated about the rotation shaft 34, the lock claw 36 is engaged with the lock groove 16 and is separated from the lock groove 16 as shown in FIG. Can move between. That is, when the lock claw 36 rotates upward about the rotation shaft 34, it engages with the lock groove 16 while penetrating the lock hole 27 and rotates downward about the rotation shaft 34. The lock hole 27 is configured to be detached from the lock groove 16 in a state where the lock hole 27 is penetrated.
　回動軸３４は、図６に示すように、上下方向においてロック爪３６の係合位置と離脱位置の略中央に配置されている。
　なお、本実施形態の回動軸３４の配置に限定されることなく、ロック爪３６の係合位置と離脱位置が、回動軸３４を介して互いに上下反対側に位置していれば、適宜配置を変更しても良い。 As shown in FIG. 6, the rotation shaft 34 is disposed at the approximate center between the engagement position and the disengagement position of the lock claw 36 in the vertical direction.
In addition, it is not limited to arrangement | positioning of the rotating shaft 34 of this embodiment. The arrangement may be changed.
　ロック溝１６は、図６に示すように、回動軸３４側に設けられた第一側壁部１６ａと、第一側壁部１６ａに対向する第二側壁部１６ｂと、第一側壁部１６ａ及び第二側壁部１６ｂの上方端部を連結する底壁部１６ｃと、から主に構成されている。
　本実施形態のロック溝１６は、略コ字形状に形成されているが、これに限定されることなく、略Ｕ字形状又は略Ｖ字形状等、適宜形状を変更することが可能である。 As shown in FIG. 6, the lock groove 16 includes a first side wall portion 16a provided on the rotating shaft 34 side, a second side wall portion 16b facing the first side wall portion 16a, a first side wall portion 16a and a first side wall portion 16a. The bottom wall part 16c which connects the upper end part of the two side wall part 16b is comprised mainly.
The lock groove 16 of the present embodiment is formed in a substantially U shape, but is not limited thereto, and the shape can be appropriately changed, such as a substantially U shape or a substantially V shape.
　ロック溝１６は、底壁部１６ｃから開口部に向かって広がるテーパー形状を備えており、第一側壁部１６ａ及び第二側壁部１６ｂが、互いに広がるように傾斜している。
　第一側壁部１６ａ及び第二側壁部１６ｂが鉛直方向に対して傾斜する傾斜角度は、ロック溝１６とロック爪３６による摩耗軽減及び係脱操作性を配慮して設定されている。
　特に、本実施形態のロック溝１６のうち、第一側壁部１６ａの傾斜角度は、ロック爪３６による回動軸３４を中心とした回動軌跡に沿わせるように設定した傾斜角度である。
　なお、第一側壁部１６ａ及び第二側壁部１６ｂは、ロック爪３６と係合可能な状態で互いに広がるように傾斜していれば、傾斜角度を適宜変更しても良い。 The lock groove 16 has a tapered shape that widens from the bottom wall portion 16c toward the opening, and the first side wall portion 16a and the second side wall portion 16b are inclined so as to spread from each other.
The inclination angle at which the first side wall portion 16a and the second side wall portion 16b are inclined with respect to the vertical direction is set in consideration of wear reduction by the lock groove 16 and the lock claw 36 and engagement / disengagement operability.
In particular, in the lock groove 16 of the present embodiment, the inclination angle of the first side wall portion 16a is an inclination angle set so as to follow a rotation locus around the rotation shaft 34 by the lock claw 36.
In addition, as long as the 1st side wall part 16a and the 2nd side wall part 16b are inclined so that it may mutually be engaged with the lock nail | claw 36, you may change an inclination angle suitably.
　ロック爪３６は、図６に示すように、回動軸３４側に設けられた第一ロック爪３６ｃと、第一ロック爪３６ｃに隣接した後方部分に設けられた第二ロック爪３６ｄとを備えている。
　本実施形態のロック爪３６とロック溝１６が係合する部分は、第二ロック爪３６ｄがロック溝１６のうち、第一側壁部１６ａ及び第二側壁部１６ｂと当接する部分である。
　このとき、第一ロック爪３６ｃと、第二ロック爪３６ｄ後方の他のロック爪３６は、ロック溝１６に対して適度な間隙を備え、ロック溝１６と当接しない構成となっている。
　このように構成することで、第二ロック爪３６ｄによる回動軸３４を中心とした回動軌跡は、第一ロック爪３６ｃによる回動軸３４を中心とした回動軌跡よりも大きな円弧を描くことになり、第二ロック爪３６ｄが上下に回動する際に、第二ロック爪３６ｄの前後方向の移動範囲を小さくできる。そのため、ロック溝１６とロック爪３６の摩耗を軽減して係合強度を確保し、また係脱操作の機能性を向上させ、さらに係合開始のタイミングを早くすることができる。 As shown in FIG. 6, the lock claw 36 includes a first lock claw 36c provided on the rotating shaft 34 side and a second lock claw 36d provided in a rear portion adjacent to the first lock claw 36c. ing.
The portion where the lock claw 36 and the lock groove 16 of the present embodiment are engaged is a portion where the second lock claw 36 d contacts the first side wall portion 16 a and the second side wall portion 16 b of the lock groove 16.
At this time, the first lock claw 36 c and the other lock claw 36 behind the second lock claw 36 d have an appropriate gap with respect to the lock groove 16 and do not come into contact with the lock groove 16.
With this configuration, the rotation locus around the rotation axis 34 by the second lock claw 36d draws a larger arc than the rotation locus about the rotation axis 34 by the first lock claw 36c. Thus, when the second lock claw 36d rotates up and down, the range of movement of the second lock claw 36d in the front-rear direction can be reduced. Therefore, the wear of the lock groove 16 and the lock claw 36 can be reduced to ensure the engagement strength, the functionality of the engagement / disengagement operation can be improved, and the timing of the engagement start can be further advanced.
　なお、本実施形態の係合位置は、第二ロック爪３６ｄがロック溝１６と係合する位置に設定されているが、適宜変更可能である。
　例えば、第二ロック爪３６ｄ後方の他のロック爪３６がロック溝１６と係合するように設定すれば、ロック溝１６とロック爪３６の摩耗を一層軽減して係合強度を確保し、また係脱操作の機能性を一層向上させることができる。
　第一ロック爪３６ｃがロック溝１６と係合するように設定すれば、ロック溝１６とロック爪３６の係合開始のタイミングを早くすることができる。 In addition, although the engagement position of this embodiment is set to the position where the 2nd lock claw 36d engages with the lock groove | channel 16, it can change suitably.
For example, if the other lock claw 36 behind the second lock claw 36d is set to engage with the lock groove 16, the wear of the lock groove 16 and the lock claw 36 is further reduced to ensure the engagement strength, The functionality of the engagement / disengagement operation can be further improved.
If the first lock claw 36c is set to engage with the lock groove 16, the timing of starting the engagement of the lock groove 16 and the lock claw 36 can be advanced.
　操作ハンドル５０は、保持部４０内に挿入されて、ロック部材３０と一体的に回動可能な状態で保持され、ロック部材３０は、操作ハンドル５０の回動と連動して、回動軸３４を中心としてアッパレール２０及びロアレール１０に対して回動可能な状態で、アッパレール２０に連結されて構成されている。
　スライドレール機構４は、通常、ロック爪３６がロアレール１０のロック溝１６に係合した係合位置にバネ部材３７によって付勢された状態となっており、ロアレール１０に対してアッパレール２０を相対移動不能に保持している。乗員の操作により操作ハンドルが上方に移動されることで、ロック爪３６がロック溝１６から離脱した離脱位置に移動し、ロアレール１０に対してアッパレール２０を相対移動可能な状態に容易に切り替えることができる。 The operation handle 50 is inserted into the holding portion 40 and is held in a state where it can rotate integrally with the lock member 30. The lock member 30 is interlocked with the rotation of the operation handle 50, and the rotation shaft 34. Is connected to the upper rail 20 so as to be rotatable with respect to the upper rail 20 and the lower rail 10.
The slide rail mechanism 4 is normally in a state in which the lock claw 36 is biased by the spring member 37 to the engagement position where the lock claw 36 is engaged with the lock groove 16 of the lower rail 10, and moves the upper rail 20 relative to the lower rail 10. Hold impossible. When the operation handle is moved upward by the occupant's operation, the lock claw 36 moves to the disengagement position where the lock claw 36 is detached from the lock groove 16, and the upper rail 20 can be easily switched to a state in which the upper rail 20 can be moved relative to the lower rail 10. it can.
　なお、上記各実施形態では、具体例として自動車のフロントシートについて説明したが、これに限定されることなく、自動車のミドルシート、リアシートについても適用可能であることは勿論である。 In each of the above-described embodiments, the front seat of the automobile has been described as a specific example. However, the present invention is not limited to this and can be applied to a middle seat and a rear seat of the automobile.
Ｓ　車両用シート
１　シートクッション
　１ａ、２ａ、３ａ　クッションパッド
　１ｂ、２ｂ、３ｂ　表皮
２　シートバック
３　ヘッドレスト
４　スライドレール機構
１０　ロアレール
１１　底板部
１２　外側板部
１３　上板部
１４　内側板部
１５　収容室
１６　ロック溝
　１６ａ　第一側壁部
　１６ｂ　第二側壁部
　１６ｃ　底壁部
２０　アッパレール
２１　上板部
２２　内側板部
２３　案内板部
２４　収容室
２５　収容溝
２６　ストッパ部
２７　ロック孔
２８　貫通穴
２９　ガイド
３０　ロック部材
３１　右側板部
３２　左側板部
３３　上板部
３４　回動軸
３５　ストッパ板部
３６　ロック爪
　３６ａ　左ロック爪
　３６ｂ　右ロック爪
　３６ｃ　第一ロック爪
　３６ｄ　第二ロック爪
３７　バネ部材
　３７ａ　バネ本体部
　３７ｂ　前方バネ腕部
　３７ｃ　後方バネ腕部
３８　引掛け部
４０　保持部
４１　側板部
４２　上板部
４３　底板部
４４　案内部
４５　保持領域
４６　係止溝
４７　規制部
５０　操作ハンドル
５１　ハンドル本体部
５２　ハンドル腕部
５３　掛け止め溝
５４　傾斜面
１１０　ロアレール
１１６　ロック孔
１２０　アッパレール
１２５　開放孔
１３０　ロックレバー
１３６　ロック爪
１３７　コイルバネ
１４０　連動支持部
１４６　係止溝
１５０　ハンドル
１５１　掛け止め溝 S Seat 1 for vehicle Seat cushion 1a, 2a, 3a Cushion pad 1b, 2b, 3b Skin 2 Seat back 3 Headrest 4 Slide rail mechanism 10 Lower rail 11 Bottom plate portion 12 Outer plate portion 13 Upper plate portion 14 Inner plate portion 15 Storage chamber 16 Lock groove 16a First side wall portion 16b Second side wall portion 16c Bottom wall portion 20 Upper rail 21 Upper plate portion 22 Inner plate portion 23 Guide plate portion 24 Accommodation chamber 25 Accommodation groove 26 Stopper portion 27 Lock hole 28 Through hole 29 Guide 30 Lock member 31 Right side plate portion 32 Left side plate portion 33 Upper plate portion 34 Rotating shaft 35 Stopper plate portion 36 Lock claw 36a Left lock claw 36b Right lock claw 36c First lock claw 36d Second lock claw 37 Spring member 37a Spring body portion 37b Front Spring arm part 37c Rear spring arm part 38 Hook part 40 Holding part 41 Side plate part 42 Above Plate portion 43 Bottom plate portion 44 Guide portion 45 Holding region 46 Locking groove 47 Restriction portion 50 Operation handle 51 Handle main body portion 52 Handle arm portion 53 Latching groove 54 Inclined surface 110 Lower rail 116 Lock hole 120 Upper rail 125 Open hole 130 Lock lever 136 Lock claw 137 Coil spring 140 Interlocking support portion 146 Locking groove 150 Handle 151 Locking groove

Claims (8)

  1. 　車体フロアに固定されるロアレールと、
    　該ロアレールに対して相対移動可能に支持されるアッパレールと、
    　前記ロアレールに設けられた係合部に係合可能な被係合部を有し、該被係合部が前記係合部に係合する係合位置と、前記被係合部が前記係合部から離脱した離脱位置との間を移動可能な状態で前記アッパレールに取り付けられたロック部材と、
    　乗員の操作により、前記ロック部材を前記係合位置又は前記離脱位置に移動させる操作ハンドルと、を備え、
    　前記ロック部材は、前記アッパレールの移動方向と直交する該アッパレールの幅方向において、該アッパレールに対して軸支される回動軸を備え、
    　前記被係合部の前記係合位置と前記離脱位置は、前記回動軸を介して互いに上下反対側に位置していることを特徴とするスライドレール機構。     A lower rail fixed to the body floor,
    An upper rail supported to be movable relative to the lower rail;
    An engaged portion that is engageable with an engaging portion provided on the lower rail, and an engaged position where the engaged portion engages with the engaging portion; and the engaged portion is engaged with the engaging portion. A locking member attached to the upper rail in a movable state between the separation position and the separation position separated from the part;
    An operation handle for moving the lock member to the engagement position or the disengagement position by an occupant operation,
    The lock member includes a rotation shaft that is pivotally supported with respect to the upper rail in the width direction of the upper rail perpendicular to the moving direction of the upper rail,
    The slide rail mechanism according to claim 1, wherein the engagement position and the disengagement position of the engaged portion are located on opposite sides of each other via the rotation shaft.
  2. 　前記回動軸は、上下方向において前記被係合部の前記係合位置と前記離脱位置の中央に配置されていることを特徴とする請求項１に記載のスライドレール機構。 2. The slide rail mechanism according to claim 1, wherein the pivot shaft is disposed at a center between the engagement position and the disengagement position of the engaged portion in the vertical direction.
  3. 　前記係合部と前記被係合部は、ロック溝とロック爪からなり、
    　前記ロック溝は、対向する第一側壁部と第二側壁部と、該第二側壁部及び前記第一側壁部を連結する底壁部と、を備え、
    　前記第一側壁部及び前記第二側壁部は、前記底壁部から開口部に向って互いに広がる形状を備えることを特徴とする請求項１又は２に記載のスライドレール機構。     The engaging portion and the engaged portion are composed of a lock groove and a lock claw,
    The locking groove includes a first side wall portion and a second side wall portion facing each other, and a bottom wall portion connecting the second side wall portion and the first side wall portion,
    3. The slide rail mechanism according to claim 1, wherein the first side wall portion and the second side wall portion have a shape that spreads from the bottom wall portion toward the opening.
  4. 　前記第一側壁部は、前記第二側壁部よりも前記回動軸側に位置し、
    　前記ロック溝のうち、前記第一側壁部は、前記ロック爪による前記回動軸を中心とした回動軌跡に沿わせて傾斜していることを特徴とする請求項３に記載のスライドレール機構。     The first side wall is located closer to the pivot shaft than the second side wall,
    4. The slide rail mechanism according to claim 3, wherein the first side wall portion of the lock groove is inclined along a rotation locus centering on the rotation axis by the lock claw. 5. .
  5. 　前記係合部と前記被係合部は、それぞれ複数形成されたロック溝とロック爪からなり、
    　該ロック爪は、前記アッパレールの移動方向において前記回動軸側に配置された第一ロック爪と、該第一ロック爪に対して前記回動軸逆側に配置された第二ロック爪とを備え、
    　前記係合位置は、前記ロック爪のうち、前記第二ロック爪と前記ロック溝とが当接する位置であることを特徴とする請求項１乃至４いずれか記載のスライドレール機構。     The engaging portion and the engaged portion are each formed of a plurality of lock grooves and lock claws,
    The lock claw includes a first lock claw disposed on the rotation shaft side in the movement direction of the upper rail, and a second lock claw disposed on the opposite side of the rotation shaft with respect to the first lock claw. Prepared,
    5. The slide rail mechanism according to claim 1, wherein the engagement position is a position where the second lock claw and the lock groove abut on the lock claw.
  6. 　前記ロック部材は、前記操作ハンドルを保持する保持部を備え、
    　前記操作ハンドルは、前記ロック部材と一体的に回動可能な状態で前記保持部に保持されていることを特徴とする請求項１乃至５いずれか記載のスライドレール機構。     The lock member includes a holding portion that holds the operation handle,
    6. The slide rail mechanism according to claim 1, wherein the operation handle is held by the holding portion so as to be rotatable integrally with the lock member.
  7. 　前記ロック部材は、該ロック部材のうち、前記保持部を備える部分が、前記アッパレールの前記操作ハンドル側の端部から突出するようにして前記アッパレール内に挿設されていることを特徴とする請求項６に記載のスライドレール機構。 The lock member is inserted into the upper rail such that a portion of the lock member including the holding portion protrudes from an end of the upper rail on the operation handle side. Item 7. The slide rail mechanism according to item 6.
  8. 　請求項１乃至７いずれか記載のスライドレール機構を備えることを特徴とする車両用シート。 A vehicle seat comprising the slide rail mechanism according to any one of claims 1 to 7.
PCT/JP2012/077792 2012-10-26 2012-10-26 Slide rail mechanism, and vehicle seat WO2014064849A1 (en)

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JP2016145024A (en) * 2015-02-02 2016-08-12 富士機工株式会社 Seat slide device
JP2018075947A (en) * 2016-11-09 2018-05-17 テイ・エス テック株式会社 Vehicle seat
CN113955154A (en) * 2021-12-20 2022-01-21 中国人民解放军63919部队 Aviation/aerospace seat

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JP2016145024A (en) * 2015-02-02 2016-08-12 富士機工株式会社 Seat slide device
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