JP4032458B2 - Removable seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a detachable seat that is detachably attached to a vehicle floor or the like.
[0002]
[Prior art]
The detachable seat is used as, for example, a rear seat of a vehicle. As shown in FIG. 10, the conventional detachable seat includes a pair of left and right seat legs 2 provided below the seat cushion 1a. 2 is provided with a hook 3a, a rear leg 2b of each seat leg 2 is provided with a locking mechanism 3b, and the hook 3a provided on the front leg 2a is provided on the floor 4. The hooks of the locking mechanism 3b provided on the rear leg 2b are hooked on the rear striker 5b provided on the floor 4 so that the seat legs 2 are fixed to the floor 4. Then, the seat is mounted on the floor 4 as shown in FIG.
[0003]
In such a seat, when the seat back 1b is laid forward and the rear leg 2b is fixed to the floor 4 by the lock mechanism 3b in the state shown in FIG. As shown, the rear part of the seat can be lifted, and the hook 3a of the front leg part 2a of each seat leg 2 is detached from the front striker 5a of the floor 4 while maintaining this lifted state. The seat can be removed from the floor 4 as shown in FIG.
[0004]
As shown in FIG. 4D, when the seat removed is attached to the support member 6 laid on the ground in the same manner as on the floor 4 as shown in FIG. Can be used.
[0005]
[Problems to be solved by the invention]
As described above, in the conventional seat of this type, the detaching operation is required twice for the removal work from the floor, and similarly, the latching operation is required twice for the mounting work on the floor. Therefore, the work of attaching and removing the seat becomes complicated and the workability is not good.
[0006]
In addition, in such a seat, the seat leg may be unfixed to the floor even when seated on the seat, and the seat leg may be removed from the floor. Furthermore, when using the removed sheet | seat outdoors etc., the special support member for installing a sheet | seat is indispensable.
[0007]
The object of the present invention is therefore to address these problems.
[0008]
[Means for Solving the Problems]
The present invention relates to a detachable seat, and the detachable seat to which the present invention is applied is provided with a seat cushion, a pair of left and right seat legs provided below the seat cushion, and before and after each seat leg. A pair of front and rear locking mechanisms for fixing each leg to the floor, and a lock release mechanism for releasing the fixed state of each leg by the lock mechanism with respect to the floor are provided. A detachable seat of a type configured such that the seat leg is detached from the floor .
[0009]
Thus, the detachable seat according to the present invention is a detachable seat of the above-described type, and the detachable sheet includes an operation restricting mechanism that restricts a release operation of the unlocking mechanism, and the operation restricting mechanism includes: A first engagement member provided at a rear end portion of the lock release lever constituting the lock release mechanism, and a seat back side assembled to the rear end portion of the seat cushion so as to be rotatable in the front-rear direction; A second engaging member that engages with the first engaging member and restricts the rotation of the unlocking lever, and the second engaging member is configured such that the seat back is inclined forward by a predetermined amount. When the engagement with the first engagement member is released, the operation restricting mechanism releases the operation restriction with respect to the unlocking mechanism in conjunction with the forward lying operation of the seat back. It is characterized by It is intended.
[0010]
In the detachable seat according to the present invention, the lock release lever constituting the lock release mechanism includes a front lever portion connected to the front lock mechanism of the both lock mechanisms and a rear lever connected to the rear lock mechanism. And are connected to each other via connecting means, and the connecting means engages with the front lever portion and rotates integrally when the rear lever portion rotates by a predetermined amount. It can be constituted as follows.
[0011]
In the detachable seat according to the present invention, a pair of left and right movable legs, which are pivotally assembled to the seat leg and provided so as to be able to protrude and retract below the seat cushion, are provided on the front and rear sides. Both movable legs and the left and right movable legs on the rear side are connected to each other by a connecting member. After the seat cushion is detached from the floor and removed, the movable legs are protruded downward. The seat cushion can be configured to be supported.
[0012]
In the detachable seat according to the present invention, the movable leg part on the front side and the movable leg part on the rear side of each movable leg part are connected to each other via a link mechanism, and all these movable leg parts are interlocked with each other. And can be configured to appear and disappear.
[0016]
[Operation and effect of the invention]
In the detachable seat having such a configuration, the release operation by the lock release mechanism releases the fixation of all the leg portions to the floor by all the lock mechanisms, so that the seat leg can be detached from the floor and the seat can be removed from the floor. .
[0017]
In order to attach the removed seat to the floor, the seat cushion is lowered to a predetermined position on the floor with the release operation by the lock release mechanism, and the release operation by the lock release mechanism is released. All the legs of the seat leg are fixed to the floor and the seat is attached to the floor.
[0018]
As described above, in the removable seat according to the present invention, since the work for removing from the floor and the work for attaching to the floor can be performed by one unlocking operation, the work for attaching and removing the seat is simple. The sex is very good.
[0019]
In particular, the removable seat according to the present invention includes an operation restricting mechanism for restricting the unlocking operation of the unlocking mechanism, and the operation restriction on the unlocking mechanism of the operation restricting mechanism is linked to the forward lying operation of the seat back. because it is configured to release Te, detachment of the seat back can not be unpin for floor of each leg of the seat leg by the lock mechanism unless not fallen forward movement, the seat from the floor when sitting on the seat There is no fear of being done.
[0020]
Further, in the removable seat according to the present invention, a pair of left and right movable legs provided so as to be able to protrude and retract below the seat cushion is provided at the front and rear, and after the seat cushion is detached from the floor and removed, each movable leg is If it is configured to support the seat cushion by protruding downward, when the removed seat is used outdoors, the seat is supported at the installation location by protruding all the legs downward. Therefore, it is not necessary to lay a special support member for installing the seat, and it is easy to use.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings. FIGS. 1 to 3 show an example of a detachable sheet according to the present invention. The seat is a rear seat for a vehicle and includes a seat cushion 11 and a seat back 12 and a pair of left and right seat legs 13.
[0022]
The seat cushion 11 is mounted and mounted on a cushion frame 14 fixed on both seat legs 13, and the seat back 12 is attached to the lower end of the seat cushion 11 via a reclining mechanism (not shown). It is assembled | attached to the rear-end part, and it can rotate to the front-back direction centering on the rotation fulcrum P, and the inclination angle of the front-back direction can be adjusted with the effect | action of a reclining mechanism.
[0023]
As shown in FIGS. 3 and 4, the seat leg 13 includes a leg main body 13a extending in the front-rear direction and a pair of front and rear legs 13b, 13c extending downward at the front and rear end portions of the leg main body 13a. Yes. In the seat leg 13, a hinge cover 27, which will be described later, is assembled above the rear part thereof so as to be rotatable in the front-rear direction. The hinge cover 27 covers the reclining mechanism, and its pivot fulcrum P is in common with the pivot fulcrum P of the seat back 12.
[0024]
In the seat leg 13, as shown in FIG. 4, the leg body 13a is formed in a cylindrical shape having a U-shaped longitudinal section and opening inward, and the leg portions 13b and 13c extending in the vertical direction. Has been. Each leg part 13b, 13c is opened up and down, the front side leg part 13b is extended downwardly inclined, and the rear side leg part 13c is extended downwardly inclined. Each leg 13b, 13c is provided with a lock mechanism 20a for fixing the seat leg 13 to the floor F, and a pair of front and rear movable legs 15, 16 are provided.
[0025]
The front movable leg 15 is composed of a pair of left and right movable legs 15a supported on the inner surface side of each leg 13b so as to be pivotable in the vertical direction, and a connecting rod 15b for connecting both movable legs 15a. Similarly, the rear movable leg body 16 includes a pair of left and right movable leg parts 16a supported on the inner surface side of each leg part 13c so as to be rotatable in the vertical direction, and a connecting rod 16b that couples both movable leg parts 16a. It is configured.
[0026]
The front movable leg 15 is spring-biased and pivots backward, and the left and right leg portions 15a are held in a horizontal state with further rotation restricted by a stopper (not shown). . In this state, when the movable leg 15 is rotated forward, a spring (not shown) that urges the movable leg 15 is reversed, and the movable leg 15 is urged forward by a spring. 15a is inclined downward and protrudes downward from the front leg portion 13b of the seat leg 13. Each movable leg portion 15a is further prevented from rotating forward by a stopper (not shown), and this protruding state is maintained.
[0027]
The rear movable leg body 16 is spring-biased and pivots forward, and the left and right leg portions 16a are held in a horizontal state by being further pivoted by a stopper (not shown). ing. In this state, when the movable leg 16 is rotated rearward, a spring (not shown) that biases the movable leg 16 is reversed and the movable leg 16 is spring-biased, so that each movable leg portion is rotated. 16a is made to incline downward and protrude downward from the rear leg 13c of the seat leg 13. Each movable leg portion 16a is further prevented from rotating backward by a stopper (not shown), and this protruding state is maintained.
[0028]
The lock mechanism 20a includes a hook 21 rotatably assembled in each leg portion 13b, 13c, an inverted U-shaped guide groove 22 provided at the lower end of each leg portion 13b, 13c and opening downward, The striker 23 is provided in F. The hook 21 is assembled to the leg portions 13b and 13c by a support pin 21a, and is biased clockwise by a spring (not shown) so that the tip of the hook 21 faces the guide groove 22.
[0029]
In the lock mechanism 20a, the striker 23 can enter the guide groove 22 in a state where the hook 21 is rotated clockwise around the support pin 21a and retracted from the guide groove 22, and the striker 23 is When the hook 21 is rotated counterclockwise around the support pin 21 a in the state of entering the guide groove 22, the hook 21 is hooked on the striker 23. In this state, the seat leg 13 is fixed to the floor F by the leg portions 13b and 13c.
[0030]
The lock release mechanism 20b includes a lock release lever 24 and a pair of left and right links 25. The unlocking lever 24 is long in the front and rear directions formed by bending the rod, and has a portal-shaped operation portion 24a formed in the center portion thereof, and horizontally supporting portions 24b formed in the front and rear portions of the operation portion 24a. , 24c and a connecting portion 24d formed at the front end of the rear support portion 24c and extending rearwardly and inclined. A connecting arm portion 24e is provided at the tip of each support portion 24b, 24c.
[0031]
The lock release lever 24 is rotatably supported by a bracket 13e provided on the inner surface of the seat leg 13 by both support portions 24b and 24c and extends in the front-rear direction, and each connecting arm portion 24e is connected to each leg portion 13b and 13c. The tip of the connecting portion 24d faces the inside of the hinge cover 27. Each connecting arm portion 24e is connected to the hook 21 of each lock mechanism 20a via a link 25.
[0032]
The link 25 is a plate-like member formed by twisting a narrow plate by 90 degrees at its middle portion, and has an elongated hole 25a extending a predetermined length in the vertical direction at the upper end portion. A connecting pin 24f provided at the lower end of the connecting arm portion 24e is inserted into and attached to the long hole 25a, and the link 25 and the connecting arm portion 24e are connected in a free state. Moreover, the link 25 is connected with the intermediate part of the hook 21 via the connection pin 25b in the lower end part.
[0033]
Therefore, in the lock release mechanism 20b, when the lock release lever 24 is rotated, each link 25 is pulled upward, whereby the hook 21 rotates around the support pin 21a against a spring (not shown). The hook 21 is released from the hooked state with respect to the striker 23.
[0034]
The operation restricting mechanism 20c includes a roller 26 provided at the upper end portion of the connecting portion 24d that constitutes the lock release lever 24 of the lock release mechanism 20b, and a hinge cover 27. The hinge cover 27 has a box shape formed by joining two plates 27a, constitutes a part of the seat back 12, and extends from the front side to the rear side via the lower end portion. 27b. The roller 26 provided at the upper end portion of the coupling portion 24d of the lock release lever 24 faces the inside from the opening portion 27b of the hinge cover 27 and contacts the inner surface of one of the plates 27a.
[0035]
In the operation restricting mechanism 20c, when the lock release lever 24 is rotated, the roller 26 is engaged with the inner surface of any one of the plates 27a of the hinge cover 27 to restrict the rotation operation of the lock release lever 24. To do. As shown in FIG. 5, the roller 26 escapes from the opening 27 b of the rotating hinge cover 27 and allows the lock release lever 24 to rotate while the seat back 12 rotates forward and falls. To do.
[0036]
In such a detachable seat, a grip portion 13d having the same shape as the operation portion 24a is formed at a portion of the seat leg 13 that faces the operation portion 24a of the lock release lever 24. The grip 13d is positioned outside the operation unit 24a with a predetermined distance from the operation unit 24a.
[0037]
In the detachable seat configured as above, all the leg portions 13b and 13c of the seat leg 13 are fixed to the floor F by the locking action of all the locking mechanisms 20a, and the seat is attached to the floor F. . For this reason, the seat is in a seatable state. Further, when the seat back 12 constituting the seat is in an upright state, the operation restricting mechanism 20c has its roller 26 positioned inside the hinge cover 27 to restrict the unlocking operation of the unlocking mechanism 20b. Yes.
[0038]
Thus, in order to remove the seat from the floor, the seat back 12 is first laid down and gripped with the operation portion 24a of the unlocking lever 24 of the unlocking mechanism 20b disposed on the left and right seat legs 13. The part 13d is simultaneously grasped and the sheet is lifted as shown in FIG.
[0039]
In the meantime, in the operation restricting mechanism 20c, the roller 26 provided at the upper end portion of the connecting portion 24d of the lock release lever 24 is opened by the opening of the hinge cover 27 as shown in FIG. It escapes from 27b and the rotation operation of the lock release lever 24 is permitted. Further, in the lock mechanism 20a, the hook 21 of the lock mechanism 20a is rotated and released from the striker 23 by the release operation by the lock release lever 24, and the floors F of all the leg portions 13b, 13c by all the lock mechanisms 20a are released. The lock on is released. Accordingly, the seat leg 13 is detached from the floor F, and the seat can be removed from the floor F.
[0040]
In order to attach the removed seat to the floor F, the seat is lowered to a predetermined position on the floor F while the release operation by the lock release lever 24 is maintained, and the release operation by the lock release lever 24 is released. The hook 21 of the mechanism 20a is pivotally returned and hooked on the striker 23. All the leg portions 13b and 13c of both seat legs 13 are fixed to the floor F by all the locking mechanisms 20a, and the seat is placed on the floor F. Mounted.
[0041]
Thus, in such a seat, the removal work from the floor F can be performed by a single operation of lifting while maintaining the release operation by the lock release lever 24, and the installation work on the floor F is unlocked. Since the release operation by the lever 24 is maintained, the operation can be performed by a single operation of lowering to a predetermined position, so that the work of attaching and removing the seat is simple and the workability is extremely good.
[0042]
In addition, the seat includes an operation restriction mechanism 20c that restricts the release operation of the lock release mechanism 20b, and the operation restriction on the lock release mechanism 20b of the operation restriction mechanism 20c is interlocked with the forward lying operation of the seat back 12. Since it is configured to release and the seat back 12 is not tilted forward, the locking mechanism 20a cannot release the fixing of the legs 13b and 13c to the floor F. There is no risk of being removed from the floor F.
[0043]
Further, the seat includes front and rear movable legs 15 and 16 provided so as to be able to appear and retract below the seat cushion 11, and after the seat is detached from the floor F and removed, the movable legs 15 and 16 are moved downward. It is configured to protrude to the side. Therefore, when the removed seat is used outdoors or the like, if all the movable leg portions 15a and 16a of the movable leg bodies 15 and 16 protrude downward, as shown in FIG. Can be supported at the installation location, and it is not necessary to lay a special support member for installing the seat, which is convenient.
[0044]
FIG. 6 shows a part of a seat provided with an unlock mechanism 20d different from the above-described seat unlock mechanism 20b. The lock release mechanism 20d has the lock release mechanism 20b as a basic configuration, but the rear support portion 24c of the lock release lever 24 is divided into two, and the first and second divided lever portions 24c1 and 24c2 are illustrated in FIG. 7 and an operating lever 24g for rotating the second split lever portion 24c2.
[0045]
As shown in FIG. 7A, the connecting means 28 includes a pair of engaging recesses 28a provided in the connecting portion of the first split lever portion 24c1, and a pair of connecting recesses provided in the connecting portion of the second split lever portion 24c2. It is comprised by the engagement protrusion 28b. Each engagement recess 28a has a cross-sectional shape cut out in a fan shape of approximately 90 degrees when viewed from the front, and is positioned symmetrically about the diameter direction. On the other hand, each engagement protrusion 28b has a narrow rectangular shape when viewed from the front, and extends inward from the outer peripheral edge with a spacing of about 180 degrees in the circumferential direction.
[0046]
Each engagement protrusion 28b extends in parallel with a slight displacement, and as shown in FIG. 5B, when the engagement protrusion 28b is engaged with each engagement recess 28a, the engagement protrusion 28b is engaged with the engagement protrusion 28b. It is in contact with the side surface of the place 28a.
[0047]
The operation lever 24g is connected to the left and right links 25. When the operation lever 24g is lifted, each link 25 is lifted to rotate the second divided lever portion 24c2 counterclockwise.
[0048]
Therefore, when the first split lever portion 24c1 side of the lock release lever 24 is rotated counterclockwise, the side surface of the engagement recess 28a engages with the engagement protrusion 28b, and FIG. As shown, the second split lever portion 24c2 is rotated integrally. Further, when the second split lever portion 24c2 side of the lock release lever 24 is rotated counterclockwise, as shown in FIG. 5C, the engagement protrusion 28b is formed in one engagement recess 28a. The first split lever portion 24c1 is integrally rotated by gradually separating from the side surface and approaching the side surface of the other engagement recess 28a and finally engaging the side surface of the other engagement recess 28a. .
[0049]
Therefore, when the second split lever portion 24c2 side of the lock release lever 24 is rotated by a predetermined amount in the counterclockwise direction with the seat back 12 lying down forward, the left and right rear locking mechanisms 20a. Only the hook 21 is rotated and detached from the striker 23, and only the rear leg portions 13 c of the left and right seat legs 13 are detached from the floor F.
[0050]
Therefore, in this state, as shown in FIG. 8, the folded seat can be inverted and stored forward about the front legs 13 b of the left and right seat legs 13.
[0051]
In FIG. 9, the movable leg portions 15 a and 16 a in the above-described seat are rotatably assembled to the outer surface of each seat leg 13, and the movable leg portions 15 a and 16 a are connected to the link mechanism 29. Part of the sheets connected to each other is shown. The link mechanism 29 includes a pair of left and right links, and includes an intermediate link 29a, a front link 29b, and a rear link 29c.
[0052]
The intermediate link 29a is assembled to the central portion of the seat leg 13 in the front-rear direction so as to be rotatable in the front-rear direction, the rear end of the front link 29b is connected to one end thereof, and the rear link is connected to the other end. The front end of 29c is connected. In addition, the front end of the front link 29b is connected to the intermediate part of the movable leg 15a of the movable leg 15, and the rear end of the rear link 29c is connected to the intermediate part of the movable leg 16a of the movable leg 16. Has been.
[0053]
In the link mechanism 29, as shown in FIG. 9A, when the intermediate link 29a is positioned so as to extend in the vertical direction, the front link 29b and the rear link 29c are retracted and movable. The legs 15a and 16a are rotated inward to maintain a horizontal state, and when the intermediate ring 29a is rotated in the front-rear direction, the front link 29b and the rear link 29c protrude as shown in FIG. Thus, the movable legs 15a and 16a are protruded downward.
[0054]
Therefore, when the removed seat is used outdoors, the link mechanism 29 is operated to project all the movable leg portions 15a, 16a of the movable leg bodies 15, 16 downward, and FIG. As shown in FIG. 5, the seat can be directly supported at an installation place such as outdoors, which is extremely convenient.
[Brief description of the drawings]
FIG. 1 is a side view showing a state immediately before removal of a detachable seat according to an example of the present invention from a passenger compartment floor.
FIG. 2 is a side view showing a state in which the seat is disposed at a position outside the passenger compartment floor.
FIG. 3 is an exploded perspective view of the sheet.
FIG. 4 is a perspective view of a seat leg constituting the seat and each mechanism disposed in the seat leg.
FIG. 5 is a perspective view of an operation restriction mechanism constituting the seat.
FIG. 6 is a perspective view showing another example of the unlocking mechanism constituting the seat.
7A is a perspective view of a connecting means for connecting the unlocking lever of the unlocking mechanism, FIG. 7B is a front view of the connecting means in a non-rotating state of the unlocking lever, and FIG. The front view (c) of the connection means in the state where the two-divided lever portion is rotated, and the front view (d) of the connection means in the state where the first split lever portion constituting the lock release lever is rotated. is there.
FIG. 8 is a side view showing a state where the seat is inverted and stored forward.
FIG. 9 is a side view (a) of a seat in a state where front and rear movable legs connected to each other are stored horizontally, and a side view (b) of the seat in a state in which the movable legs protrude. .
FIG. 10 is a side view (a) to (c) showing a procedure for removing a conventional detachable seat from the passenger compartment floor, and a side view (d) in a state of being disposed at a position outside the passenger compartment floor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Seat cushion, 12 ... Seat back, 13 ... Seat leg, 13a ... Leg main body, 13b ... Front side leg part, 13c ... Rear side leg part, 13d ... Gripping part, 13e ... Bracket, 14 ... Cushion frame, 15, 16 ... movable legs, 15a, 16a ... movable legs, 15b, 16b ... connecting rod, 20a ... lock mechanism, 21 ... hook, 21a ... support pin, 22 ... guide groove, 23 ... striker, 20b, 20d ... lock release mechanism , 24 ... Unlocking lever, 24a ... Operation part, 24b ... Front side support part, 24c ... Rear side support part, 24c1 ... First division lever part, 24c2 ... Second division lever part, 24d ... Connection part, 24e ... Connection arm , 24f ... connecting pin, 24g ... operating lever, 25 ... link, 25a ... long hole, 25b ... connecting pin, 20c ... operation regulating mechanism, 26 ... roller, 7 ... Hinge cover, 27a ... Plate, 27b ... Opening, 28 ... Connection means, 28a ... Engagement recess, 28b ... Engagement projection, 29 ... Link mechanism, 29a ... Intermediate link, 29b ... Front link, 29c ... Rear Side link, F ... floor, P ... rotation fulcrum.

Claims (4)

A seat cushion, a pair of left and right seat legs provided below the seat cushion, a pair of front and rear locking mechanisms for fixing the leg portions provided on the front and rear of each seat leg to the floor, and the above-described respective locking mechanisms. A detachable seat comprising a lock release mechanism that releases the fixed state of the leg portion relative to the floor in conjunction with the release mechanism of the lock release mechanism, the seat leg being configured to be detached from the floor ; The detachable seat includes an operation restriction mechanism that restricts a release operation of the lock release mechanism, and the operation restriction mechanism includes a first engagement provided at a rear end portion of a lock release lever constituting the lock release mechanism. A member and a seat back side assembled to the rear end portion of the seat cushion so as to be pivotable in the front-rear direction and engaged with the first engagement member to engage the lock A second engagement member for restricting the rotation of the release lever is provided, and the second engagement member is disengaged from the first engagement member when the seat back is tilted forward by a predetermined amount. It is comprised so that the said operation control mechanism may cancel | release the operation control with respect to the said lock release mechanism in response to the downward lying operation | movement of the said seat back, The detachable seat characterized by the above-mentioned . 2. The removable seat according to claim 1, wherein the lock release lever constituting the lock release mechanism includes a front lever portion connected to a front lock mechanism of the lock mechanisms and a rear side connected to a rear lock mechanism. It is divided into lever parts and connected to each other via a connecting means. The connecting means engages with the front lever part and rotates integrally when the rear lever part rotates a predetermined amount. removable sheet which is characterized by being composed. The detachable seat according to claim 1 or 2, further comprising a pair of left and right movable legs that are pivotally assembled to the seat leg so as to be able to protrude and retract below the seat cushion . The left and right movable legs and the rear left and right movable legs are connected to each other by a connecting member, and after the seat cushion is detached from the floor and removed, the movable legs protrude downward. removable sheet characterized by being configured to cause to support the seat cushion is. The detachable seat according to claim 3 , wherein the movable leg portion on the front side and the movable leg portion on the rear side of each movable leg portion are connected to each other via a link mechanism, and all of these movable leg portions are connected to each other. A detachable seat characterized by being configured to appear and move in conjunction with each other .

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