JPH0727934U - Rear seat slide lock structure - Google Patents

Abstract

(57) [Summary] [Purpose] When the seat is out of the seat use range, structurally it cannot be used as a seat. [Structure] First and second lock holes are formed on the slide rail in the seat use range and outside the range, and stopper steps are formed at both ends of the seat use range, and the first and second lock plates and the seat back are linked. Let In the seated posture of the seat back, the first lock plate cannot be fitted into the first lock hole, and the stopper step prevents the slide of the lock plate out of the range. In the flat attitude, the slide restriction of the first lock plate is released, and the second lock plate can be fitted into the second lock hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rear seat slide lock structure, and more particularly to a structure that cannot be used as a normal seat outside a seat use range in a one-box car or the like.

[0002]

[Prior art]

 Recently, so-called one-box vehicles, which can be used for various purposes, have been attracting attention. In such one-box vehicles, various measures have been taken to make effective use of the vehicle interior, but at the same time it is required to ensure safety and the like.

[0003]

[Problems to be solved by the device]

 For example, a long slide rail is extended from the front end to the rear end of the rear side space, and the first and second rear seats are slidably and lockably supported on the slide rail, so that the rear seat can be folded. It has been proposed that the seat can be set at any position when it is stored in a large cargo space to create a large luggage space, or when it is fully flattened or made into a table.

However, when the seat is used as an original seat in such a seat, the distance from the front seat, the seat belt attachment position, etc. are restricted by vehicle safety standards, etc., and the sliding range that can be used as the seat is limited. If there is a seat outside the sliding range, it is required to inform the occupant of this so that the safety can be guaranteed while driving.

In view of the above point, an object of the present invention is to provide a rear seat slide lock structure that structurally prevents the seat from being used as a seat when the seat is out of the seat use range.

[0006]

[Means for Solving the Problems]

 Therefore, in the rear seat slide lock structure according to the present invention, the seat back can be tilted between the sitting position and the flat position, and is slidably supported by a long slide rail extending in the front-rear direction of the vehicle body to be positioned at any position. In the rear seats that can be set, the long slide rails extending in the longitudinal direction of the vehicle body have a plurality of first lock holes in the seat use range of the seat and a plurality of second lock holes outside the seat use range in the longitudinal direction. The seats are formed at a predetermined interval, and the seat is provided with first and second lock plates that can be fitted into the first and second lock holes to enable the seat to be locked at any position of the slide rail. , There are stopper steps at both ends of the slide rail in the seat use range in the longitudinal direction, and the first and second lock plates are respectively linked to the seat back, In the seated posture of the back, the first lock plate is allowed to fit into the first lock hole, and the stopper step prevents the first lock plate from sliding outside the seat use range. It is characterized in that the slide regulation of the lock plate is released to allow the second lock plate to be fitted into the second lock hole.

The seat back may be tilted by a reclining mechanism, or a lock cam and an operating lever may be provided to lock the seat back in a seated position, and the lock may be released to move the seat back to a forward tilted table position. May be In this case, the seat back and the first and second lock plates are connected by the first and second cooperation wires, and the first cooperation wire is slack in the seat back sitting posture and the first lock in the forward tilt table posture. It is installed so that the plate is pulled, and the second linking wire is installed so that the second lock plate is pulled in the seated position and loosened in the forward tilted table position. In the case of a reclining mechanism, the flat attitude includes a full flat attitude and a forward tilt table attitude, and in the case of a forward tilt table attitude, similar cooperation is possible with the first and second cooperation wires described above. However, in the case of the full flat posture, the seat back and the first and second lock plates are made to cooperate with each other by the first and second cooperation wires so that a guide member or the like is appropriately provided and the same function is exhibited. Good.

Further, the seat may be flattened even in the seat use range of the seat, for example, the seat may be tilted forward. Therefore, it is preferable that the second lock hole is formed in the seat use range of the slide rail at a predetermined interval, and the second lock plate is fitted into the second lock hole in a flat posture of the seat back.

[0009]

[Action and effect of the device]

 According to the present invention, when the seat is used, the first lock plate on the seat side is fitted into the first lock hole of the slide rail, and the second lock plate on the seat side is fitted into the second lock hole of the slide rail when flat. , The seat can be locked when the seat is used, but the seat can be locked even when the seat is folded or full flat, and the seat can be locked at any position of the slide rail.

Further, in the seat use range of the seat, unless the seat back is in the seated position, the first lock plate does not fit into the first lock hole, and in the seated position, the first lock plate is the seat use range due to the stopper step. Since the seats are restricted from sliding outwards, when the seat is in the sitting position and locked, the occupant can structurally know that the seat is within the seat use range and can seat with confidence.

Further, in the seat use range, the seat back cannot be slid outside the seat use range unless the seat back is flattened, and when the seat back remains in the sitting posture outside the seat use range, the second lock plate is locked by the second lock. Since it does not fit into the hole, it cannot be used as a normal seat when the seat is out of the seat use range, and the occupant structurally knows that it is out of the seat use range, ensuring safety while driving. it can.

[0012]

【Example】

 Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 6 show a rear seat slide lock structure according to an embodiment of the present invention. As shown in FIG. 1, a pair of left and right long slide rails 2 are provided in the front-rear direction from the front end to the rear end on the rear side of the passenger compartment floor of the one-box car. The rear seat 3 of is supported.

Further, as shown in FIGS. 2 and 6, the first and second rear seats 3 are composed of a seat cushion 30 and a seat back 31, and between the seat cushion 30 and the seat back 31. The reclining mechanism 4 is provided so that the seat back 31 can be tilted back and forth by operating the reclining lever 40.

In the reclining mechanism 4, the upper bracket on the seat back 31 side is composed of first and second upper brackets 41 and 42, and both brackets 41 and 42 are swingably connected to each other by a mounting pin 43. The first upper bracket 41 is swingably supported at its lower end by a lower bracket (not shown) on the seat cushion 30 side, and the second upper bracket 42 is fixed at the upper end to the side of the seat back 3 1. There is. The structure of the reclining mechanism 4 is not directly related to the present invention, and any structure can be adopted, and therefore detailed description thereof will be omitted.

Further, a concave cam portion 44 is formed on the lower end edge of the second upper bracket 42, and a lock cam piece 45 capable of meshing with the concave cam portion 44 is swingably attached to the first upper bracket 41 and the lock cam is formed. A table operation lever 46 for operating the piece 45 is provided. By operating the table operation lever 46, the lock cam piece 45 and the concave cam portion 44 are disengaged from each other so that the seat back 31 can be turned into a forward tilt table. ing.

Further, as shown in FIGS. 2 and 3, the first and second rear seats 3 are placed and fixed on a mounting base 5, and the mounting base 5 includes an upper base 50 and a lower base 51. Are connected to each other with bolts, and rollers 52 are rotatably attached to both ends of the lower base 51 in the vehicle width direction.

The slide rail 2 has a substantially quadrangular closed cross-section, a storage groove is formed in the center of the upper surface of the slide rail 2 over the entire length in the longitudinal direction, and the roller 52 is stored in the slide rail 2. The first and second seats 3 are adapted to slide back and forth.

A first lock plate 60 is attached to the lower base 51 approximately outside the center by a mounting bracket 61 so as to be slidable in the vertical direction, and the guide slot 610 of the mounting bracket 61 is provided with a first lock plate 60. The guide pin 62 of the first lock plate 60 is housed so that the first lock plate 60 can be slid up and down by the size of the guide slot 610, and the upper end of the first lock plate 60 can be bent. A coil spring 64 is stretched between the portion and the upper end projection of the mounting bracket 61 so that the first lock plate 60 is biased downward.

An insertion hole 53 is formed substantially in the center of the upper end bent portion of the lower base 51, a second lock plate 63 is inserted into the insertion hole 53, and the second lock plate 63 is As shown in FIG. 5 (a), it is supported on the inner surface side of the lower base 51 in the same structure as the first lock plate 60. That is, the second lock plate 63 is mounted by the mounting bracket 61 so as to be slidable up and down, and the guide pin 62 of the second lock plate 63 is housed in the guide slot 610 of the mounting bracket 61. A coil spring 64 is stretched between the upper bent portion of the lock plate 63 and the upper protrusion of the mounting bracket 61.

A control plate 7 is mounted on the inner bottom surface of the slide rail 2, and the slide rail 2 and the control plate 7 are in the seat seat use range below the first lock plate 60 (see area A in FIG. 1). A plurality of first lock holes 20 and 70 are formed so as to penetrate vertically and are spaced at predetermined intervals in the longitudinal direction, and the first lock plate 60 is fitted into the first lock holes 20 and 70 so that the rear seat 3 is seated. It can now be locked within range A. Further, outside the seat use range below the first lock plate 60 (see area B in FIG. 1), a stopper step 71 is formed over the entire length.

On the other hand, a plurality of second lock holes 72 (however, the second lock holes of the slide rail 2 are not shown in the figure) penetrate through the slide rail 2 and the control plate 7 below the second lock plate 63. And is formed at a predetermined interval over the entire length in the longitudinal direction, that is, both the seat use range A and the outside range B, and the second lock plate 63 is fitted into the second lock hole 72 to seat the rear seat 3. It can be locked in both the usage range A and the outside range B.

A slide operation lever 80 is provided on the side surface of the seat cushion 30, and an operation wire 81 is provided between the slide operation lever 80 and the upper end bent portions of the first and second lock plates 60 and 63. , 82 are connected and the first and second lock plates 60, 63 can be pulled up by operating the slide operation lever 80 to release the lock of the rear seat 3.

A substantially J-shaped unlocking arm 83 is swingably attached to the mounting brackets 61 of the first and second lock plates 60, 63, and the tips thereof are the first and second lock plates 60, 63. The guide pin 62 of 63 is engaged from below. The unlock arm 83 is preferably biased by a coil spring in the downward sliding direction of the guide pin 62.

First and second cooperation wires 84, 85 are connected between the unlock arm 83 and the second upper bracket 42 on the side surface of the seat back 31, and the first and second cooperation wires 84, The outer sleeve 85 is fixed to the first upper bracket 41, and arc-shaped guide members 86 and 87 are formed on the first upper bracket 41 with the mounting pin 43 interposed therebetween, and the guide members 86 and 87 are seats. When the back 31 tilts forward, the upper portions of the first and second cooperation wires 84 and 85 are bent and guided forward, and when the seat back 31 is seated, the first cooperation wire 84 is slack and the second cooperation wire 85. Pulls the unlock arm 83 to restrict the second lock plate 63 from being fitted into the second lock hole 71, while the seat back 31 is tilted forward. In this posture, the second cooperation wire 85 is loosened and the first cooperation wire 84 pulls the unlock arm 83 to restrict the insertion of the first lock plate 60 into the first lock holes 70, 20.

Here, in order that the vertical slide distance of the first lock plate 60 due to the operation of the slide operation lever 80 and the tilting of the seat back 31 has the relationship shown in FIG. Etc. are set. That is, the lock plate 60 fitted in the lock holes 70 and 20 is released by the operation of the slide operation lever 80, but slides by a distance a that does not exceed the stopper step 71, and depending on the tilting of the seat back 31, the lock plate 60 is locked. The lock plate 60 fitted in the screws 70 and 20 slides a distance b beyond the stopper step 71.

Next, the usage method will be described. When the rear seat 3 is in the seat use range A and the seat back 31 is in the upright sitting posture, the first cooperation wire 84 is slackened and the first lock plate 60 is biased by the coil spring 64, as shown in FIG. The rear seat 3 can then be locked in that position by fitting it into the first locking holes 70, 20. On the other hand, the second cooperation wire 85 is pulled to swing the unlock arm 83 upward, and the second lock plate 63 is slid upward to restrict the fitting into the second lock hole 72.

When the rear seat 3 is slid, when the slide operation lever 80 is operated against the spring force of the coil spring 64, the unlock arm 83 pulls up the first lock plate 60 and the first lock hole 70. , 20 so that the rear seat 3 is unlocked. If the slide control lever 80 is continuously operated, the first lock plate 60 does not fit into the lock holes 70 and 20, so the rear seat 3 can be slid to the front and rear of the slide rail 2, but at both ends of the seat use range A. Since there is a stopper step portion 71 and the first lock plate 60 hits against this and the slide is restricted, the rear seat 3 cannot be slid beyond the outside of the adjacent seat use range B.

When sliding to the next seat use range A beyond the adjacent seat use range B, the table operation lever 46 is operated and the lock cam piece 45 is swung downward to be disengaged from the concave cam 44. Then, the seat back 31 becomes swingable around the mounting pin 43, and when the seat back 31 is tilted forward around the mounting pin 31 to form a table, as shown in FIG. 6, the first and second cooperation wires are formed. 84 and 85 are bent forward, the first linking wire 84 pulls the unlock arm 83 to pull up the first lock plate 60 greatly, and the slide restriction by the stopper step portion 71 of the first lock plate 60 is released. Therefore, the rear seat 3 can be slid to the next seat use range A over the adjacent seat use range B, and the seat back 3 When 1 is raised, the rear seat 3 can also be locked.

Therefore, in the seat use range A of the rear seat 3, the rear seat 3 cannot be locked unless the seat back 31 is in a seated position, and the stopper step 71 slides the seat back outside the seat use range B. The passenger is structurally aware that the rear seat 3 is in the seat use range A when the rear seat 3 is in the seated position and is locked, so that the passenger can sit in comfort.

On the other hand, when the seat back 31 is made into the forward tilt table and the rear seat 3 is slid to the outside of the seat use range B, the first lock plate 60 is above the stopper step 71 and Although the rear seat 3 cannot be locked, the second cooperation wire 85 is loosened, the second lock plate 63 can slide downward, and the rear seat 3 can be locked by being fitted into the second lock hole 72. The unlocking of the second lock plate 63 is performed by operating the slide operation lever 80 as in the case of the first lock plate 60.

Therefore, since the rear seat 3 can be made into a table and locked outside the seat use range B, it can be safely used as a table.

When the seat back 31 is erected outside the seat use range B, the downward slide of the second lock plate 63 is regulated, and the first lock plate 60 can slide downward, but the lock hole to be fitted. The rear seat 3 cannot be locked because there is no.

Therefore, since it is immediately known that the rear seat 3 is outside the seat use range B, the rear seat 3 can be returned to the seat use range A and locked to ensure safety during traveling.

There is a case where the seat 3 is made into a table in the seat use range A of the rear seat 3, but in such a case, the seat lock range 72 of the slide rail 2 is also provided with the second lock hole 72. Therefore, even if the seat back 31 is made into a table, the second lock plate 63 can be fitted into the second lock hole 72, and the table-formed rear seat 3 can be locked.

The seat back 31 may be reclined by operating the reclining lever 40. In such a case, the first and second upper brackets 41, 42 are locked by the lock cam piece 45 to be integrated. Since the outer sleeve tips of the first and second cooperation wires 84 and 85 are attached to the first upper bracket 41, the first and second cooperation wires 86 and 87 are pushed by the reclining of the seat back 31. It is not pulled and the above operation is not affected.

[Brief description of drawings]

FIG. 1 is a schematic view showing a rear seat having a slide lock structure according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing the slide lock structure.

FIG. 3 is a perspective view showing a main part of the slide lock structure.

FIG. 4 is a partially cutaway perspective view showing a slide rail in the slide lock structure.

FIG. 5 is a diagram showing a cross-section of a main part of the slide lock structure and a relationship between sliding distances a and b of the first lock plate in a sitting posture and a flat posture.

FIG. 6 is a schematic configuration diagram showing the slide lock structure at the time of a forward tilt table.

[Explanation of symbols]

 2 ... Slide rail 20 ... First lock hole 3 ... Rear seat 30 ... Seat cushion 31 ... Seat back 41 ... First upper bracket 42 ... Second upper bracket 44 ... Concave cam 45 ... Lock cam piece 46 ... Table operating lever 60 ... No. 1 lock plate 63 ... 2nd lock plate 7 ... control plate 70 ... 1st lock hole 71 ... stopper step 72 ... 2nd lock plate 84 ... 1st cooperation wire 85 ... 2nd cooperation wire A ... seat use range B ... seat Outside the range of use

Claims (3)

[Scope of utility model registration request] 1. A rear seat in which a seat back can be tilted between a sitting posture and a flat posture, and is slidably supported by a long slide rail extending in a longitudinal direction of a vehicle body so that the seat back can be set at an arbitrary position. In the above-mentioned slide rail, a plurality of first lock holes are formed in the seat use range of the seat, and a plurality of second lock holes are formed outside the seat use range at predetermined intervals in the longitudinal direction. First and second insertable into the first and second lock holes
Lock plate is provided so that the seat can be locked at any position of the slide rail, while stopper steps are formed at both ends in the longitudinal direction of the seat use range of the slide rail, and the first and second locks are provided. The plates are respectively linked to the seat back, and the first lock plate is in the first position in the seated posture of the seat back.
Can be inserted into the lock hole of the seat, and the stopper step prevents the slide outside the seat use range, and the flat position of the seat back cancels the slide restriction of the first lock plate outside the seat use range. The rear seat slide lock structure is characterized in that the second lock plate can be fitted into the second lock hole. 2. The seat is provided with a lock cam capable of locking the seat back in a seated posture and an operation lever for releasing the lock, and by unlocking the seat back, a forward lean table having a flat posture can be formed. On the other hand, the seat back and the first lock plate are connected by a first cooperation wire that pulls the first lock plate in a seated posture of the seat back and in a forward leaning table posture, and the seat back and the second lock plate are connected. 2. The rear seat slide lock structure according to claim 1, wherein the rear seat slide lock structure is connected by a second cooperative wire that pulls the second lock plate in the seated posture of the seat back and loosens in the forward tilted table posture. 3. The second lock hole is formed at a predetermined interval in the seat use range of the slide rail, and the seat back is in a flat posture in the seat use range.
The rear seat slide lock structure according to claim 1 or 2, wherein the seat is lockable.