JP4358030B2 - Vehicle locking device - Google Patents

Description

  The present invention is mounted on a rotating member or a detachable member such as a folding seat rotatably supported on a vehicle floor surface, which can be engaged with and disengaged from a striker projecting on a fixed member side such as a vehicle floor surface. The present invention relates to a vehicle locking device.

The folding seat rotatably supported on the vehicle floor includes a lock mechanism that locks the striker protruding from the vehicle floor when the seat is moved to a use position that is parallel to the vehicle floor. ing.
This type of locking mechanism is generally provided between a notch groove formed in a base member provided at the bottom of a seat, a lock position for gripping a striker that has entered the notch groove, and an unlock position for releasing the striker. A hook that can be rotated, an engagement position that engages with the hook in the lock position and prohibits the hook from rotating toward the unlock position, and the hook that is separated from the hook is in the unlock position. And a pawl that is rotatable between a non-engagement position that allows rotation to the side, and the hook and the pawl are always directed toward the unlocking position side and the engaging position side by a tension spring. The rotation is urged (for example, Patent Documents 1 and 2).

  In patent document 1, the lower rail provided in the bottom part of the seat part of a folding sheet | seat is comprised from a pair of left and right plate-shaped members, a hook and a pole are arrange | positioned between right and left plate-shaped members, and left and right plate-shaped members The hook and the pole are rotatably attached to the lower rail by the two pins that pass through the shaft. However, it is not easy to attach the hook and the pole to the left and right plate-like members by such a procedure.

On the other hand, in Patent Document 2, a support hole and a mounting hole are formed in the center and upper end of a seat leg, which is a plate-like member, and a rotating pin that passes through a hook that can be attached to and detached from a striker is supported. The hook is rotatably attached to the seat leg by fitting into the hole. Then, the rotating shaft (hinge shaft) inserted through the mounting hole of the seat leg thus integrated with the hook is attached to the seat rail fixed to the bottom of the folding seat, and the seat leg is rotated with respect to the seat rail. It is possible.
JP 2000-94995 A JP 2000-127721 A

However, in Patent Document 2, since it is necessary to make a support hole and a mounting hole in the seat leg, the processing of the seat leg is troublesome, and further, a rotating pin and a rotating shaft are required, which increases the manufacturing cost. End up.
Furthermore, since the rotary shaft is inserted into the mounting hole located above the support hole and this rotary shaft is attached to the seat rail, the distance from the bottom surface of the seat rail to the bottom surface of the seat leg becomes long (seat rail). The amount of protrusion from will increase.) For this reason, the folding sheet has a poor appearance, and the stability of the folding sheet may be impaired when the striker is locked with a hook.

  An object of the present invention is that it can be easily attached to a rotating member or a detachable member in a vehicle such as a folding sheet, the manufacturing cost is low, and the protruding amount from the rotating member or the detachable member is small. An object of the present invention is to provide a vehicular locking device that does not deteriorate the appearance of a moving member or a detachable member or impair the stability during use.

  A vehicle locking device according to the present invention includes a striker and a lock mechanism that engages and disengages the striker on one and the other of a vehicle body and a rotating member that is rotatable with respect to the vehicle body or a detachable detachable member. In the vehicular locking device, the lock mechanism includes a pair of parallel mounting plates each having an entry groove of the striker and through holes located on both sides of the striker entry groove, and the pair of attachment plates. A pair of cylindrical members fixed in alignment with the through-holes, hooks pivotally attached to the pair of cylindrical members, and gripping and releasing the striker entering the entry groove, and the hooks And a pair of mounting plates, the vehicle body and the rotating member or the above-described rotating member or the above-mentioned fixing bolts inserted through the through holes and the cylindrical members. It is characterized by being fixed to one of the disengaging member.

  The lock mechanism can be fixed to a folding sheet that is rotatably supported on a floor surface in the vehicle, and the striker can be projected from the floor surface.

  A bracket is fixed to the bottom surface of the bowl-shaped rail provided on the bottom of the folding sheet, the locking mechanism is fixed to the bracket, and a connection portion between the bottom surface of the rail and the bottom surface of the bracket is mutually connected. If an opening to be overlapped is formed and a part of the hook and pole enters the rail through both openings, the amount of protrusion of the lock mechanism from the rail can be reduced.

  The outer end portion of the through hole of at least one of the mounting plate is a tapered portion that increases in diameter toward the outside, and the end portion of the cylindrical member that fits in the through hole corresponds to the shape of the tapered portion. The taper portion may be caulked as a tapered shape.

  According to the present invention, it can be easily attached to a rotating member or a detachable member in a vehicle such as a folding sheet, the manufacturing cost is low, and the amount of protrusion from the rotating member or the detachable member is small, and the rotating A vehicle locking device that does not deteriorate the appearance of the member or the detachable member and does not impair the stability during use can be obtained.

Hereinafter, the present invention will be described based on illustrated embodiments.
First, a vehicle folding seat to which the present invention is applied and its peripheral members will be described.
1 and 2 show a floor surface 100 in an automobile (not shown) and a folding sheet (rotating member) 10 that is rotatably provided on the floor surface 100.
The folding sheet 10 is rotatable about a seat 11 and an axis in the left-right direction at the rear end of the seat 11 (the front and back direction of the paper is the left-right direction, the left side in FIGS. 1 and 2 is the front, and the right side is the rear). A pair of left and right upper rails 13 are provided on the bottom surface of the seat portion 11 so as to face in the front-rear direction and have a saddle shape with an open bottom surface. Each upper rail 13 is supported by a slidable lower rail 14 in the front-rear direction, which has a bowl shape whose upper surface opens. From both ends of the rotating shaft 15 facing in the left-right direction, fixing portions 15a orthogonal to the rotating shaft 15 extend, and the left and right fixing portions 15a are fixed to the front end portions of the bottom surfaces of the left and right lower rails 14, respectively. Yes. A pair of left and right substantially triangular brackets 16 are rotatably attached to the rotating shaft 15, and the folding sheet 10 is attached to the floor surface 100 by fixing the left and right brackets 16 to the floor surface 100. It has been. The folding sheet 10 attached to the floor surface 100 can be rotated in the front-rear direction around the rotation shaft 15.
A pair of left and right strikers 101 projecting in an inverted U shape when viewed from the front side of the vehicle protrudes behind the bracket 16 on the floor surface 100.

A bracket 17 having an L-shaped cross section is fixed to the bottom surfaces of the rear ends of the left and right lower rails 14. The bracket 17 includes a horizontal portion 18 and a hanging portion 19 that hangs from the inner end of the horizontal portion 18. The horizontal portion 18 includes a substantially rectangular opening 18 a (see FIGS. 7 and 8) and a pair of front and rear. Mounting holes 18b and 18c are formed, and two mounting holes 19a and 19b are formed in the hanging portion 19.
A pair of front and rear mounting holes 14a and an opening 14b (see FIG. 8) positioned between the mounting holes 14a are formed in the bottom surface of the rear end of the lower rail 14. The front and rear mounting holes 14a, 18b, and 18c are connected to each other. 14b, 18a are overlapped with each other (see FIG. 8), the upper surface of the horizontal portion 18 is brought into contact with the lower surface of the lower end of the lower rail 14, and the rivets 20 are inserted into the front and rear mounting holes 14a, 18b, 18c, The bracket 17 is attached to the lower rail 14 by deforming its upper end portion into a flat shape.

Further, a lock unit (lock mechanism) 30 is attached to the hanging portion 19 of the bracket 17.
The lock unit 30 includes a hook 31 that can be engaged with and disengaged from the striker 101, a pole 32 that can be engaged with and disengaged from the hook 31, and specifically has the following structure.
A pair of left and right side plates (mounting plates) 33, 34 having the same outer shape have entry grooves 33a, 34a into which the striker 101 can enter, and support holes (through holes) 33b at the rear portions of the side plates 33, 34. 34b, and an arcuate guide hole 34c centered on the support hole 34b is formed in the outer side plate 34. In addition, circular recesses 33d and 34d are formed in the opposing surfaces of the front portions of the inner and outer side plates 33 and 34 (see FIGS. 6 and 8). The circular recesses 33d and 34d and the inner surfaces of the side plates 33 and Between the outer surfaces of the side plates 34, support holes (through holes) 33e and 34e (see FIG. 8) smaller in diameter than the circular recesses 33d and 34d are formed, and the outer end portions of the support holes 33e and 34e are The taper portions 33f and 34f (see FIGS. 6 and 8) have diameters that increase toward the outside.
The hook 31 includes an engaging groove 31a that can be engaged with and disengaged from the striker 101, an engaging protrusion 31b that can be engaged and disengaged with the pole 32, and a mounting hole 31c, and a cylindrical member that passes through the mounting hole 31c. It is pivotally attached to the left and right side plates 33, 34 via 35. The cylindrical member 35 is formed by bending a thin metal plate inside the outer hollow cylindrical portion 36 made of a material having a low frictional resistance such as a synthetic resin so as to be longer and smaller in diameter than the outer hollow cylindrical portion 36. The processed inner hollow cylindrical portion 37 is fitted and fixed. The outer hollow cylindrical portion 36 is fitted and fixed to the attachment hole 31c of the hook 31 so as to be relatively rotatable. The left and right end portions of the inner hollow cylindrical portion 37 are supported by the support holes 33b and 34b of the left and right side plates 33 and 34, respectively. Is non-rotatably fitted. As a result, the hook 31 is rotatable around the axial center of the cylindrical member 35, and the guide projection 31d provided on the outer side surface of the hook 31 is engaged with the guide hole 34c. Due to the engagement relationship between the guide protrusion 31d and the guide hole 34c, the counterclockwise rotation of the hook 31 is restricted at the unlock position shown in FIG.

  The pole 32 positioned in front of the hook 31 includes a stopper portion 32a that can be engaged with and disengaged from the engaging protrusion 31b of the hook 31, and a mounting hole 32b that is formed in the base end portion thereof. The outer hollow cylindrical portion 36 of the cylindrical member 38 having the same structure as described above is rotatably fitted in the mounting hole 32b, and the left and right ends of the inner hollow cylindrical portion 37 support the left and right side plates 33 and 34. The holes 33e and 34e are fitted. Then, the left and right ends of the inner hollow cylindrical portion 37 are deformed into a taper shape and caulked (burring-caulking) into the taper portions 33f and 34f of the left and right side plates 33 and 34, whereby the cylindrical member 38 is left and right. , 34 is non-rotatably attached, and the pole 32 is rotatable about the axis of the cylindrical member 38 with respect to the side plates 33, 34. A through hole 32c is formed in the free end portion of the pole 32, and an attachment hole 39a formed in the through hole 32c and an attachment portion 39 having a substantially U shape in plan view fixed to one end of the operation wire W. The bolt 41 penetrating the nut 40 is inserted, and the nut 42 is screwed onto the male screw on the tip side of the bolt 41 to fix one end of the operation wire W to the pole 32. Further, a locking portion S1 formed at the front end of the tension spring (biasing means) S is locked between the head 41a of the bolt 41 and the nut 40, and this locking is achieved by the head 41a and the nut 40. The front end of the tension spring S is fixed to the pole 32 by sandwiching the portion S1. The locking portion S2 formed at the rear end of the tension spring S is locked in a locking hole 31e formed in the hook 31, and the hook 31 is pulled by the urging force (tensile force) of the tension spring S. 4 and 5 are always urged to rotate counterclockwise, and the pole 32 is always urged to rotate clockwise.

  As described above, the lock unit 30 includes the left and right side plates 33 and 34, the hook 31, the pole 32, the two cylindrical members 35 and 38, the tension spring S, the operation wire W, the mounting portion 39, the bolt 41, and the nuts 40 and 42. And is previously unitized before being attached to the lower rail 14. Then, as shown in FIG. 7, the unitized lock unit 30 is positioned in the lower rail 14 through the openings 14b and 18a with the hooks 31 and the upper ends of the poles 32 and the tension spring S (see FIGS. 3 and 8). ), And a bolt 50 is inserted from the outside into the inner hollow cylindrical portion 37 of the front and rear cylindrical members 35, 38 (only one bolt is shown in FIG. 7), and penetrates the inner hollow cylindrical portion 37. By inserting the tip of the bolt 50 projecting inside the inner side plate 33 into the mounting holes 19a and 19b of the bracket 17 and screwing the nut 51 located inside the drooping portion 19 to the tip of the bolt 50. The lock unit 30 is fixed to the bracket 17.

The other ends of the operation wires W of the left and right lock units 30 are both fixed to an operation lever 61 pivotally attached to the front end of the upper rail 13 so as to be rotatable around a rotation shaft 60 in the left-right direction. The operation lever 61 is movable between a non-operation position (the position shown in FIGS. 1 and 2) and an operation position, and is always urged toward the non-operation position by a biasing means such as a spring (not shown). ing.
The striker 101 does not enter the entry grooves 33a, 34a of the side plates 33, 34, and the hook 31 is in the unlocked position shown in FIG. When operated to the operating position side against the biasing force of the means, the pole 32 rotates counterclockwise against the biasing force of the tension spring S and moves to the non-engagement position shown in FIG. Will be in the unlocked state shown in FIG. At this time, as shown in FIG. 5, the engaging protrusion 31b of the hook 31 abuts on the pole 32. Therefore, even if the operating lever 61 is moved to the non-operating position, the pole 32 is held in the non-engaging position.
On the other hand, when the striker 101 enters the entry grooves 33 a and 34 a of the lock unit 30 in such an unlocked state, the hook 31 rotates in the clockwise direction while the striker 101 engages with the engagement groove 31 a of the hook 31. When the hook 31 rotates in the clockwise direction, the engagement between the engaging protrusion 31b of the hook 31 and the pole 32 is once released, so that the pole 32 rotates in the clockwise direction by the urging force of the tension spring S. When the hook 31 and the pole 32 further rotate and the engaging protrusion 31b of the hook 31 gets over the stopper portion 32a of the pole 32, the hook moves to the locked position as shown in FIG. The part 32a moves to the engaging position where it engages with the engaging protrusion 31b of the hook 31. As described above, when the stopper portion 32a is engaged with the engagement protrusion 31b from the counterclockwise direction, the hook 31 is held at the lock position, and the lock unit 30 is locked.

Next, the operation of the lock unit 30 configured as above will be described.
As shown in FIG. 2, when the folding seat 10 is in a folding position in which the backrest 12 is parallel to the seat 11 and is substantially perpendicular to the floor surface 100, the lock unit 30 and the striker 101 are separated from each other. The lock unit 30 is in the unlocked state shown in FIG.
When the folding sheet 10 is rotated backward about the rotation shaft 15 and moved to the use position shown in FIG. 1 while the operation lever 61 is in the non-operation position, the striker 101 enters the entry grooves 33a and 34a. As described above, the lock unit 30 is in the locked state shown in FIG. 4, and the rotation of the hook 31 to the unlocking position side (counterclockwise side) is prohibited, so that the folding sheet 10 is held in the use position. The

  In order to rotate the folding sheet 10 in the use position to the folding position shown in FIG. 2, the backrest 12 is first tilted forward until it is parallel to the seat 11, and the operation lever 61 is moved to the operation position. . Then, as shown in FIG. 5, the pole 32 rotates counterclockwise against the urging force of the tension spring S and moves to the non-engagement position, and the hook 31 is released from the engagement with the stopper portion 43a. However, if the folding sheet 10 is rotated forward about the rotary shaft 15 in this state, the striker 101 enters the engaging groove 31a. It escapes from the grooves 33a, 34a, the hook 31 is rotated to the unlocked position by the urging force of the tension spring S, and the lock unit 30 returns to the unlocked state shown in FIG.

As described above, according to the present embodiment, the lock unit 30 that is unitized in advance is fixed to the bracket 17 by the bolt 50 and the nut 51, so that the components of the lock mechanism (hook 31, pole 32, side plates 33, 34). , The tension spring S or the like) can be easily and quickly attached to the folding sheet 10 of the lock mechanism (lock unit) as compared with the case where the tension spring S is separately fixed to the bracket 17.
Moreover, the support holes 33b, 34b, 33e, 34e and the cylindrical members 35, 38 for attaching the hook 31 and the pole 32 to the left and right side plates 33, 34 and the cylindrical members 35, 38 are utilized for fixing the lock unit 30 to the bracket 17. Therefore, it is not necessary to make more holes than necessary in the left and right side plates 33 and 34, and the structure of the lock unit 30 is simpler than in the prior art.
Furthermore, since the upper ends of the hook 31 and the pole 32 and the tension spring S are positioned in the lower rail 14 through the openings 14b and 18a formed in the lower rail 14 and the bracket 17, the bottom of the folding sheet 10 of the lock unit 30 is provided. There is an advantage that the protruding amount of can be reduced as compared with the conventional case.

  In the present embodiment, the lock unit 30 of the present invention is provided on the folding sheet 10, but the present invention is not limited to the present embodiment and can be implemented in various modes. For example, the lock unit 30 is provided on a vehicle door (not shown) as a rotating member, and when the vehicle door is fully closed, the striker protruding from the vehicle body is locked by the lock unit 30 so that the vehicle door is fully closed. You may make it hold | maintain. Further, the lock unit 30 is provided at the bottom of a seat (detachable member) (not shown) that can be attached to and detached from the floor surface 100, and when the seat is attached to the floor surface, the lock unit 30 projects into the vehicle floor surface. You may lock the striker. Furthermore, a locker 30 may be provided on the vehicle body side by projecting a striker on the rotating member side or the detachable member side. Further, the support holes 33b and 34b for the hook 31 may be formed with a tapered portion, and the end portion of the tubular member 35 may be caulked to the tapered portion. Further, a pair of front and rear screw holes may be formed in the hanging portion 19 of the bracket 17, and the lock unit 30 may be fixed to the bracket 17 by screwing the bolt 50 into these screw holes. The outer hollow cylindrical part 36 of the cylindrical members 35 and 38 may be made of metal, and the outer hollow cylindrical part 36 and the inner hollow cylindrical part 37 may be made of a single metal.

It is a side view which shows the state which has the folding sheet | seat to which this invention is applied in a use position. It is a side view which shows the state which has a folding sheet | seat in a folding position. It is an enlarged side view of a rear end part of a rail and a lock unit. It is an enlarged side view of the lock unit in a locked state. It is an enlarged side view of the lock unit in an unlocked state. It is a disassembled perspective view of a lock unit. It is a disassembled perspective view of a rail, a bracket, and a lock unit. It is sectional drawing which follows the VIII-VIII line of FIG. It is sectional drawing which follows the IX-IX line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Vehicle floor surface 101 Striker 10 Folding sheet | seat (rotating member)
DESCRIPTION OF SYMBOLS 11 Seat part 12 Back 13 Upper rail 14 Lower rail 15 Rotating shaft 15a Fixing part 16 Bracket 17 Bracket 18 Horizontal part 18a Opening 18b 18c Mounting hole 19 Hanging part 19a 19b Mounting hole 20 Rivet 30 Lock unit (locking mechanism)
31 hook 31a engagement groove 31b engagement protrusion 31c attachment hole 32 pole 32a stopper portion 32b attachment hole 32c through hole 33 34 side plate (attachment plate)
33a 34a Entrance groove 33b 34b Support hole (through hole)
34c Guide hole 33d 34d Circular recess 33e 34e Support hole (through hole)
33f 34f Taper portion 35 38 Tubular member 36 Outer hollow tubular portion 37 Inner hollow tubular portion 39 Mounting portion 40 Nut 41 Bolt 42 Nut 50 Bolt 51 Nut S Tension spring (biasing means)
W Operation wire

Claims (4)

In a vehicle locking device provided with a striker and a lock mechanism that engages and disengages the striker on one and the other of a vehicle body and a rotating member that is rotatable with respect to the vehicle body or a detachable detachable member,
The locking mechanism is
A pair of parallel mounting plates having the striker entry groove and through holes located on both sides of the striker entry groove;
Between the pair of mounting plates, a pair of cylindrical members fixed to match the position of the through hole,
A hook pivotally attached to each of the pair of cylindrical members, and a hook for grasping and releasing the striker entering the entry groove, and a pole for regulating the rotation position of the hook;
Have
The pair of mounting plates are fixed to one of the vehicle body and the rotating member or the detachable member by a through bolt and a fixing bolt inserted into both the cylindrical members. Vehicle locking device. The vehicle locking device according to claim 1,
A vehicle locking device in which the lock mechanism is provided on a folding sheet that is rotatably supported on a floor surface in a vehicle, and the striker is projected from the floor surface. The vehicle locking device according to claim 2,
A bracket is fixed to the bottom surface of the bowl-shaped rail provided on the bottom of the folding sheet, the locking mechanism is fixed to the bracket, and a connection portion between the bottom surface of the rail and the bottom surface of the bracket is mutually connected. A vehicle locking device in which openings to be overlapped are formed, and a part of the hook and pole is inserted into the rail through both openings. The vehicle locking device according to any one of claims 1 to 3,
The outer end portion of the through hole of at least one of the mounting plate is a tapered portion that increases in diameter toward the outside, and the end portion of the cylindrical member that fits in the through hole corresponds to the shape of the tapered portion. A vehicular locking device caulked to the tapered portion as a tapered shape.

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