JP5801212B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat that is detachably installed on a vehicle body floor surface.

  Conventionally, a configuration of a detachable vehicle seat has been proposed for reasons such as securing a luggage loading space of a commercial one-box vehicle. In the vehicle seat 101 shown in Patent Document 1, as shown in FIG. 6, locking devices are arranged at the four corners of the lower surface of the seat seat 111. The lock device 120 on the front side of the seat mainly includes a seat rotation arm 121 fixed to the seat seat portion 111 and a lock arm 131 that is rotatably supported by the seat rotation arm 121. A hook-shaped lock portion 133 is formed at the tip of the lock arm 131, and the lock portion 133 is engaged with and disengaged from the striker 152 disposed on the vehicle body floor surface 151 by rotating the lock arm 131. In addition, the lock arm 131 includes a holding structure 160 that can be held at each of an engagement position where the lock arm 131 is engaged with the striker 152 and a release position where the engagement is released. The holding structure 160 is configured such that a ball 161 held between the seat rotation arm 121 and the lock arm 131 is fitted into a hole 162 provided in the seat rotation arm 121 and a hole 163 provided in the lock arm 131. The lock arm 131 is held in either the engagement position or the release position. The vehicle seat 101 can be attached and detached without using a tool or the like by the lock device 120 having such a holding structure 160. When the vehicle seat 101 is removed, the locking device 120 on the rear side of the seat (not shown) is unlocked, the seat back 112 is folded, the seat seat 111 is erected forward, and then the locking device 120 on the front side of the seat. The vehicle seat 101 is lifted from the vehicle body floor surface 151 in the state where the release is held.

  In the vehicle seat shown in Patent Document 2, similarly to Patent Document 1, locking devices 220 are arranged at the four corners on the lower surface of the seat portion, and these locking devices 220 are engaged with and disengaged from strikers arranged on the vehicle body floor surface. Thus, the vehicle seat can be attached and detached. Further, in Patent Document 2, as shown in FIG. 7, the lock arms 231 of the lock device 220 provided on the left and right sides of the front side of the seat are connected by a connecting rod 241, and the connecting rod 241 is set as an operation unit to lock the left and right locks. By operating the arm 231 simultaneously, workability when removing the vehicle seat is improved.

JP-A-11-321392 JP 2000-145234 A

  By the way, in Patent Document 1, when removing the vehicle seat, the seat back is folded and the seat seat 111 is erected forward, while supporting the vehicle seat with one hand, while the other hand holds the seat front side. Therefore, the locking device 120 on the front side of the seat is configured so that the unlocking operation can be performed separately on the left and right sides and the unlocked state is maintained. However, since the vehicle seat is heavy so that it is difficult to carry with one hand, the left and right locking devices 120 are separately released with the other hand while supporting the vehicle seat with one hand. Lifting involves a plurality of operations and is difficult to work.

  In the structure of Patent Document 2, since the left and right locks can be operated simultaneously, there is an advantage that the number of operations is reduced compared to Patent Document 1. However, since the lock arm 231 is biased in the locking direction by a spring member (not shown), the vehicle seat 101 must be lifted while unlocking the lock arm 231, and the operability is poor. Further, when a load or the like collides with the connecting rod, the operation rod is deformed, the operability is deteriorated, the operability of the lock is deteriorated, and the lock may be released.

  In view of the above circumstances, an object of the present invention is to provide a vehicle seat that has excellent operability and can prevent inadvertent unlocking.

  The invention of claim 1 includes leg portions provided at the four corners of the lower surface of the seat seat portion, a front lock device provided at each lower end of the two leg portions provided on the front side of the seat seat portion, A rear locking device provided at each lower end of the two legs provided on the rear side, and the front locking device and the rear locking device are arranged in parallel to the vehicle body floor surface in the left-right direction. The striker has a locked state in which the striker is held in the intrusion groove, and an unlocked state in which the striker can be detached from the intrusion groove, wherein the two front locking devices block the intrusion groove It is possible to rotate between a lock position that holds the striker in the intrusion groove and an unlock position that allows the striker to be released from the intrusion groove. Lock member and lock position of the lock member And an urging means for urging in the direction, respectively, and an operation member for connecting the lock members of the two front locking devices at both ends and an outer side of the lock position in the operation direction of the oscillating operation member. A first rigid member that connects the lower ends of the two front legs at both ends, and is disposed outside a lock release position in the operation direction of the operation member, and connects the lower ends of the two front legs at both ends. A second rigid member, and at least the operation member and the second rigid member are arranged in parallel.

  The invention according to claim 2 is the vehicle seat according to claim 1, wherein when the front side locking device and the rear side locking device are in a locked state engaged with the striker, the first rigid member and the The second rigid body member is disposed in the vehicle front-rear direction with respect to the operation member, and when the seat lock is in a state where the rear side locking device is unlocked and the seat seat is erected forward, The two rigid members are arranged behind the vehicle with respect to the operation member.

  A third aspect of the present invention is the vehicle seat according to the second aspect, wherein the front side locking device includes the locking member, the urging means, and an enclosing space of a lock case constituting a lower end of the leg portion. The lock case is composed of an inner case and an outer case both having a substantially U-shaped cross section, and is stacked between the inner case and the outer case by overlapping each other so that the recesses face each other. A space is formed, and the intrusion groove is formed in the inner case and the outer case, and is formed by a slit-like groove that opens to the front side of the vehicle when the seat seat portion is in a seated state. The operation member connected to the lock member is formed with a long hole through which the operation member can move between a lock position and a lock release position, and each of the first rigid member and the second rigid member is , Both ends of the slot The lock member is connected to the inner case, and in the locked state, the lock member is positioned at a lock position where the flange portion of the lock member crosses the intrusion groove while the striker is located in the intrusion groove. And the striker are engaged, and in the unlocked state, the lock member is located at a lock release position where the flange portion of the lock member is separated from the entry groove, and the striker enters the entry groove, and It is characterized by being free to leave.

  A fourth aspect of the invention is the vehicle seat according to any one of the first to third aspects, wherein the operation member and the second rigid body member are made of a cylindrical pipe material. And

  According to the first aspect of the present invention, when removing the vehicle seat from the vehicle body floor surface, in order to lift the vehicle seat, the operation member serving as the grip portion and the second rigid member are grasped together, thereby being aware of the unlocking operation. Therefore, the lock device can be unlocked without the need for a separate work process for performing the unlocking operation, thereby improving operability.

  Further, since the vehicle seat can be attached and detached while holding the second rigid member and the operation member, it is not necessary to change the hand, and the operability is improved.

  Furthermore, since the first rigid body member and the second rigid body member are arranged so as to sandwich the operation member moving in the operation range, a load placed on the vehicle body floor surface collides with the operation member. There is no. Thereby, the malfunction of the locking device due to the deformation of the operation member can be prevented, and inadvertent release can be prevented.

  In addition, since it is not necessary to make the operation member in a complicated shape so that luggage placed on the vehicle body floor surface does not collide, the cost can be reduced.

  Further, since the lock member is constantly urged in the lock direction by the urging means, the lock device is engaged with the striker even when the vehicle is used with the vehicle seat standing. Since the state is maintained, the vehicle seat does not fall off even when a large vibration is applied to the vehicle, for example, over a step.

  In the invention according to claim 2, in the locked state engaged with the striker, the first rigid body member and the second rigid body member are respectively disposed in the front-rear direction of the vehicle with respect to the operation member, so that the vehicle in a seated state The front seat collides with the first rigid member and the second rigid member before the luggage or the like placed on the vehicle body floor collides with the operation member. Thereby, the malfunction of the locking device due to the deformation of the operation member can be prevented, and inadvertent release can be prevented.

  In addition, the second rigid member is disposed on the rear side of the vehicle with respect to the operation member in a state where the seat seat is erected forward, so that even when the seat seat is erected on the vehicle body floor surface Since the loaded luggage or the like collides with the second rigid body member before colliding with the operation member, it is possible to prevent malfunction of the locking device due to deformation of the operation member.

  Furthermore, when unlocking the operation member, the second rigid body member and the operation member can be grasped as if they are grasped by hand from diagonally above, so that it is easy to grip and force is applied. Also when lifting, it can be made easy to lift.

  In the invention of claim 3, the same effect as that of claim 1 and claim 2 can be obtained.

  In the invention of claim 4, by making the operation member and the second rigid member a cylindrical pipe, the operation member can be easily gripped when moving to the unlocked position, and the operability is good. In addition, it can be easily held as a grip when lifting the vehicle seat.

It is a side view at the time of seating of the locking device concerning one embodiment of the present invention, (a) is a locked state and (b) is a lock release state. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the vehicle seat which concerns on one Embodiment of this invention, (a) is a seating state, (b) A folding state, (c) is a standing state, (d) is a detachment | leave state. BRIEF DESCRIPTION OF THE DRAWINGS It is a locking device at the time of seating which shows one Embodiment of this invention, (a) is a perspective view, (b) is the side view which removed the inner case. 1A and 1B show a locking device in a standing state (locked state) according to an embodiment of the present invention, in which FIG. 1A is a perspective view, and FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a locking device at the time of standing (lock release state), showing one embodiment of the present invention, (a) is a perspective view, (b) is a side view with an inner case removed. It is a side view which shows the prior art example of a locking device. It is a perspective view which shows the prior art example of a locking device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 5, the vehicle seat 1 of the present embodiment includes a seat seat 11 on which an occupant sits, a seat back 12 on which the occupant sitting on the seat seat 11 leans, and a leg that supports the seat 11. Part 15 is provided.

  In the seat seat portion 11, a seat cushion 13 made of a cushion material is fixed to a frame (not shown) made of a rigid material.

  The seat back 12 is supported in a swingable manner behind the seat seat 11 via a recliner 14, and the swing range is set so that the seat back 12 can be folded forward so as to overlap the seat seat 11.

  The leg portions 15 extend downward from the four corners of the lower surface of the frame. Moreover, the locking device 20 is provided in the lower end of each leg part 15, and the leg part 15 is fixed to the striker 52 arrange | positioned through the locking device 20 at four places of the vehicle body floor surface 51 so that attachment or detachment is possible. .

  The striker 52 is made of a shaft-like rigid material, and is arranged in parallel on the vehicle body floor surface 51 along the left-right direction (vehicle width direction). As shown in FIGS. 3A and 3B, a resin covering portion 52 a is integrally provided in the parallel portion of the striker 52.

  The locking device 20 includes a front locking device 20f disposed at each lower end of the two front leg portions 15f provided on the front side of the seat seat portion 11, and two rear leg portions 15r provided on the rear side of the seat seat portion 11. And a rear locking device (not shown) disposed at each lower end of the. In addition, the rear side locking device can employ | adopt suitably the rear side locking device disclosed by the prior document 1, the prior document 2, etc., The description is abbreviate | omitted. As shown in FIGS. 3 to 5, the front lock device 20 f includes a lock case 21 including an inner case 21 i and an outer case 21 o that are integrally provided at the lower end of the front leg portion 15 f, And a urging spring 35. The inner case 21i and the outer case 21o both have a substantially U-shaped cross section, and are overlapped so that the recesses face each other, thereby forming an accommodation space 21a between the inner case 21i and the outer case 21o. . The lock member 31 and the urging spring 35 are accommodated in the accommodation space 21a.

  When the seat seat 11 is in the seating state shown in FIG. 3, the bottom surface of the opposing recesses of the inner case 21i and the outer case 21o of the lock case 21 is directed rearward from the side surface on the vehicle front side so as to face the vehicle front side. A slit-shaped intrusion groove 22 having one end opened in the same shape is provided. The slit width of the intrusion groove 22 is set to be slightly wider than the shaft diameter of the covering portion 52a of the striker 52. A resin slit cover 24 that covers the periphery of the intrusion groove 22 and protects the periphery from coming into direct contact with the cover 52 a of the striker 52 is disposed outside the lock case 21.

  The lock member 31 is formed of a plate-like member, and a rotation shaft 32 is provided on the proximal end side, and a flange portion 33 having a hook shape is provided on the distal end side. The lock member 31 is pivotally supported in the vicinity of the innermost portion of the intrusion groove 22 of the lock case 21 so that both ends of the rotation shaft 32 can be rotated by the outer case 21o and the inner case 21i. It is arranged to rotate so as to cross. The lock member 31 is made of a shaft member projecting on a predetermined radius centered on the rotation shaft 32, and is provided with an operation portion 34 for rotating the lock member 31. The operation portion 34 is inserted into a restriction hole (long hole) 23 provided in the inner case 21 i, and the operation range of the operation portion 34 is that the operation portion 34 moves within the restriction hole 23 provided in the lock case 21. It is prescribed by.

  In the seated state, the restriction hole 23 is formed as an arc-shaped long hole centering on the rotation shaft 32 along the front-rear direction above the portion of the inner case 21 i that supports the rotation shaft 32.

  Then, the lock member 31 is urged counterclockwise in FIG. 3B by the urging spring 35, and is operated in a direction in which the flange 33 crosses the intrusion groove 22 from the outside of the intrusion groove 22, that is, in a seated state. The portion 34 is biased and held from the rear end (lock release position) side to the front end (lock position) side of the restriction hole 23. In the locked position, the flange 33 is held in a state of crossing the intrusion groove 22, and the striker 52 can be prevented from coming off from the intrusion groove 22. In the unlocked position, the flange 33 is separated from the intrusion groove 22. Thus, the striker 52 can be detached from the intrusion groove 22. In addition, the outer peripheral surface of the flange portion 33 enters the striker 52 so that the striker 52 can enter the entry groove 22 by pushing the lock member 31 in the locked position by the urging force of the urging spring 35 of the urging spring 35. It is formed in the circular arc inclined with respect to the direction, or a taper surface. Further, at least one of the inner case 21i and the outer case 21o is provided with a shock absorber 70 made of a soft resin or rubber material at the innermost position of the intrusion groove 22, and in the locked position, The striker 52 elastically deforms the damper 70 to provide elasticity so that the striker 52 does not rattle between the inner surface of the flange portion 33 of the lock member 31 and the innermost portion of the intrusion groove 22.

  The two front-side locking devices 20f are connected to each other at both ends of an operation member 41 made of a cylindrical pipe member arranged along the left-right direction, and the two front-side locking devices are operated by operating the operation member 41. 20f is interlocked to release the lock.

  Further, the two front side locking devices 20f and the striker support the seat seat portion 11 so as to be rotatable in a hinged manner around the striker 52 in a state where the front side locking device 20f and the striker 52 are engaged (locked state). Is set to

  Further, a first rigid member 42 and a second rigid member 43 are disposed on the two front locking devices 20f. The first rigid member 42 is made of a rod-like rigid material, and is disposed outside the lock position of the operation range of the operation member 41, that is, in front of the restriction hole 23 in the seated state, and the inner case 21i of the two front lock devices 20f is connected to both ends. It is connected with. The second rigid member 43 is made of a cylindrical rigid material, and is disposed outside the unlocking position of the operating range of the operating member 41, that is, below the rear side of the restricting hole 23 in the seated state, and is provided with two front locking devices 20f. The inner case 21i is connected at both ends.

  Next, a procedure for removing the vehicle seat 1 will be described. First, from the seated state shown in FIGS. 2A and 3, the recliner 14 is operated, and the seat back 12 is folded on the seat portion 11 as shown in FIG. 2B. Next, each rear locking device of the rear leg 15r is unlocked, and the vehicle seat 1 is rotated forward about the front striker 52 as shown in FIGS. Stand up. Next, as shown in FIG. 5, the operation member 41 of the front leg 15 f and the second rigid member 43 are grasped together from above the rear side of the vehicle seat 1, and the operation member 41 is held by the second rigid member 43. The front locking device 20f of the front leg portion 15f is unlocked by being close to each other. And while holding the operation member 41 and the 2nd rigid body member 43, the vehicle seat 1 is lifted and removed from the vehicle body floor surface 51 as shown in FIG.2 (d).

  When the removed vehicle seat 1 is assembled to the vehicle body floor surface 51, the vehicle seat 1 is mounted in a state where the vehicle seat 1 is erected with the seat back 12 folded and the front of the seat down. Carry up. When the striker 52 is inserted into the intrusion groove 22 of the front locking device 20f of the front leg portion 15f, the striker 52 comes into contact with the outer periphery of the flange portion 33 to lock the lock member 31 against the urging force of the urging spring 35. And the striker 52 enters the innermost part of the intrusion groove 22. When the striker 52 enters the innermost portion of the intrusion groove 22, the lock member 31 moves to the lock position by the urging force of the urging spring 35 and engages with the striker 52. As in the case of unlocking, when the second rigid body member 43 and the operation member 41 are held, the collar portion 33 of the lock member 31 is disengaged from the intrusion groove 22, so that the striker 52 is It is possible to enter the innermost part of the intrusion groove 22 without coming into contact with the lock member 31, and the lock member 31 is moved to the lock position by the urging spring 35 by releasing the hand from the operation member 41. Next, when the seat rear of the vehicle seat 1 in an upright state is lowered, the rear lock device engages with the striker 52, and the vehicle seat 1 moves to the vehicle body floor surface 51, like the front lock device 20f. Fixed on top.

  With the above configuration, when the vehicle seat 1 is removed from the vehicle body floor surface 51, the unlocking operation is performed by grasping the operation member 41 and the second rigid member 43 together as a grip portion in order to lift the vehicle seat 1. Since the front locking device 20f can be unlocked without being aware of the above, there is no work process for performing the unlocking operation separately, and the operability is improved. Further, since the vehicle seat 1 can be attached and detached while holding the second rigid member 43 and the operation member 41, it is not necessary to change the hand, and the operability is further improved.

  And since the 1st rigid body member 42 and the 2nd rigid body member 43 are arrange | positioned so that the operation member 41 which moves an operation range may be pinched | interposed, the load etc. which were placed on the vehicle body floor surface 51 are operation members. No collision with 41. Thereby, the malfunction of the front side locking device 20f due to the deformation of the operation member 41 can be prevented, and inadvertent unlocking can be prevented. In addition, since it is not necessary to make the operation member 41 in a complicated shape so that the luggage placed on the vehicle body floor surface 51 does not collide, the cost can be reduced.

  When the second rigid member 43 is positioned below the operation member 41 in the seated state, and the vehicle seat 1 is erected, the second rigid member 43 is behind the operation member 41, that is, the luggage space. Therefore, it is possible to prevent a load or the like from colliding with the operation member 41 from the rear side of the vehicle.

  Further, when the operation member 41 is unlocked, the second rigid member 43 and the operation member 41 can be gripped as if they are grasped by hand from the rear obliquely upward, so that it is easy to grasp and force is applied. Even when the vehicle seat 1 is lifted, it can be easily lifted.

  Even when the vehicle is used in a state where the vehicle seat 1 is erected by the urging force of the urging spring 35 being constantly urged in the locking direction by the urging force of the urging spring 35, the front locking device 20f. Since the locked state engaged with the striker 52 is maintained, the vehicular seat 1 does not fall off even when a large vibration is applied to the vehicle, such as over a step.

  By making the operation member 41 a cylindrical pipe, it is easy to grip the operation member 41 when moving the operation member 41 to the unlock position, and the operability is good. Moreover, it can be easily held as a grip portion when the vehicle seat 1 is lifted.

  In addition, the vehicle seat 1 of this embodiment can be employed for a seat for one person or a bench seat type seat where several people can sit, and the same effects can be obtained.

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat 11 ... Seat seat part 15f ... Front side leg part (leg part)
15r ... Rear leg 20 ... Lock device 20f ... Front lock device 21 ... Lock case 21a ... Accommodating space 21i ... Inner case 21o ... Outer case 22 ... Intrusion groove 23 ... Regulatory hole (long hole)
DESCRIPTION OF SYMBOLS 31 ... Lock member 33 ... Gutter 34 ... Operation part 41 ... Operation member 42 ... 1st rigid body member 43 ... 2nd rigid body member 52 ... Strike

Claims (4)

Legs provided at the four corners of the lower surface of the seat seat;
A front side locking device provided at each lower end of two leg portions provided on the front side of the seat seat portion;
A rear locking device provided at each lower end of the two leg portions provided on the rear side of the seat seat portion,
These front side locking device and rear side locking device are
A locked state in which an axial striker arranged in parallel to the left and right direction with respect to the vehicle body floor surface is held in the intrusion groove,
A vehicle seat having an unlocked state in which the striker can be detached from the entry groove,
The two front locking devices are:
Between a lock position that is positioned so as to close the intrusion groove and holds the striker in the intrusion groove, and an unlocking position that allows the striker to be released from the intrusion groove by opening the intrusion groove A locking member that can be rotated with
Urging means for urging the lock member toward the lock position, respectively,
An operating member for connecting the locking members of the two front locking devices at both ends;
A first rigid member that is disposed outside the lock position in the operation direction of the swinging operation member and connects the lower ends of the two front legs at both ends;
A second rigid member disposed outside the unlocking position in the operation direction of the operation member and connecting the lower ends of the two front legs at both ends, and at least the operation member and the second rigid member are parallel to each other. A vehicle seat characterized by being arranged in The vehicle seat according to claim 1,
When the front side locking device and the rear side locking device are in a locked state engaged with the striker,
The first rigid member and the second rigid member are respectively disposed in the vehicle front-rear direction with respect to the operation member,
A vehicle characterized in that the second rigid member is disposed behind the operation member with respect to the operation member when the rear seat locking device is in an unlocked state and the seat seat is in a standing state. Sheet. The vehicle seat according to claim 2,
In the front side locking device, the lock member and the urging means are accommodated in an accommodation space of a lock case that constitutes a lower end of the leg portion,
The lock case is composed of an inner case and an outer case, both of which have a substantially U-shaped cross section, and the accommodation space is formed between the inner case and the outer case by overlapping each other so that the recesses face each other. ,
The intrusion groove is formed in a slit-like groove that is formed in the inner case and the outer case and opens to the front side of the vehicle when the seat seat portion is in a seated state.
The inner case is formed with a long hole through which the operation member coupled to the lock member movably passes between a lock position and an unlock position.
Each of the first rigid body member and the second rigid body member is connected to the inner case at both ends of the elongated hole,
In the locked state, the striker is positioned in the intrusion groove, and the lock member is positioned at a lock position where the flange portion of the lock member crosses the intrusion groove, and the lock member and the striker are engaged. And
In the unlocked state, the lock member is located at a lock release position where the flange portion of the lock member is separated from the entry groove, and the striker can freely enter and leave the entry groove. Vehicle seat to be used. The vehicle seat according to any one of claims 1 to 3,
The vehicle seat, wherein the operation member and the second rigid member are made of a cylindrical pipe material.

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