JP4025637B2 - Automotive seat device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile seat device capable of taking a folded state and a tumble state of a seat, and more particularly to an automotive seat device that facilitates attachment, removal, or disengagement of a seat to / from a floor.
[0002]
[Prior art]
It is known that the seat can be folded and tumbled (standing), and the tumble seat is removed from the floor to expand the storage space on the floor and effectively use the space. One example is disclosed in US Pat. No. 5,498,051.
The known seat device has a first locking mechanism disposed in front of the seat cushion frame and a second locking mechanism disposed in the rear of the seat cushion frame, and the first locking mechanism is fixed to the floor. The second striker mechanism can be freely engaged with and disengaged from the first striker mechanism, and the second locking mechanism is freely fixed to the floor.
[0003]
This type of seat device is mounted on the floor by lifting a heavy seat in a dark room, engaging the striker of the first striker mechanism with the groove of the lower bracket of the first locking mechanism, and then moving the seat device horizontally. On the other hand, the operation is performed by engaging the striker of the second striker mechanism with the groove of the bracket of the second locking mechanism.
[0004]
[Patent Document 1]
US Pat. No. 5,498,051 [Problems to be Solved by the Invention]
The above-described mounting operation of the seat device on the floor is performed by holding the seat device so that it can approach the first striker mechanism from obliquely above, and maintaining the angle constant, the first locking mechanism becomes the first striker mechanism. Must be locked. This work is difficult because the seat device is heavy, and improvement is desired.
[0005]
Further, when the rear of the seat device is lifted upward and the seat device is held in an oblique state, the line of sight of the worker who lifted the seat device is blocked by the oblique seat device, and the first locking mechanism The relationship between the first striker and the first striker could not be confirmed, and improvement of this point is desired.
[0006]
Therefore, an object of the present invention is to solve the problems of the prior art described above.
Furthermore, this invention makes it the subject which should be solved to make it easy to remove from the floor of a sheet | seat apparatus in addition to the improvement operation | work to the floor of a sheet | seat apparatus.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention basically employs technical means for providing a protrusion along the rear groove of the lower bracket constituting the first locking mechanism.
[0008]
When this means is installed, the seat device is moved along the floor, the protrusion of the lower bracket is brought into contact with the striker on the floor side, and the rear side of the seat device is lifted at that time. When the groove of the bracket is engaged with the striker and the seat device is returned to the horizontal position again, the seat device can be attached to the floor. Therefore, the adoption of this means eliminates the need for the operator to lock the first locking mechanism to the first striker mechanism obliquely from above while lifting the seat, and the mounting of the seat device to the floor is extremely easy. Become.
[0009]
In addition, the removal of the seat device from the floor may be performed in the reverse procedure described above, and the lifting of the seat device is unnecessary.
[0010]
Furthermore, according to the present invention, since the tapered opening is provided at the rear of the floor bezel constituting the first striker mechanism, it is very easy to guide the protrusion of the lower bracket of the seat device in the striker direction. It becomes.
[0011]
According to the present invention, the first locking mechanism is supported by the front portion of the seat cushion frame that supports the seat, and the second locking mechanism is supported by the rear portion of the seat cushion. An upper bracket in which a first locking mechanism is fixed to a seat cushion frame in a vehicle seat device in which a mechanism is detachable from a floor side first striker mechanism and a second locking mechanism is detachable from a floor side second striker mechanism. And a lower bracket rotatably supported by the upper bracket via the rotation shaft, and the lower bracket seats at least a part of the upper bracket and a part of the second locking mechanism on the floor. by moving along the floor in a state of being, automotive seat instrumentation, characterized in that it comprises a projection which abuts against the striker constituting the first striker mechanism There is provided.
[0012]
Preferably, the lower bracket has first and second grooves, and the protrusion is formed on an extension of one side wall of the opposing side wall that defines the second groove.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Please refer to FIG. The vehicle seat device 1 includes a seat cushion frame 3 that supports a seat 2, a first locking mechanism 4 that is fixed to the front of the seat cushion frame 3, and a second locking mechanism that is fixed to the rear of the seat cushion frame 3. 5 and.
The first locking mechanism 4 is detachable from the first striker mechanism 7 fixed to the floor (floor) 6, and the second locking mechanism 5 is detachable from the second striker mechanism 8. The first striker mechanism 7 is covered with a floor bezel 9.
[0014]
An example of the structure of the first locking mechanism 4 will be described with reference to FIG. The first locking mechanism 4 includes an upper bracket 11 that is supported by the seat cushion frame 3 via the mounting hole 12, a lower bracket 14 that is rotatably supported by the upper bracket 11 via the rotation shaft 13, and a lower bracket 14. And a hook member 16 that is rotatably supported via a pin 15.
The rotary shaft 13 passes through a long hole 17 formed in the upper bracket 11 and extends between a seat cushion frame (not shown) that faces and separates from the illustrated seat cushion frame 3 and the illustrated seat cushion frame 3. The pipe 18 is connected to the pipe 18 through a fixing nut 28.
[0015]
The long hole 17 has a shape extending in the front-rear direction in the state shown in FIG. 1 in which the seat 2 is supported on the floor 6 by the first locking mechanism 4 and the second locking mechanism 5. The width of the long hole 17 and the diameter portion of the rotary shaft 13 are set to substantially the same size, and the movement of the rotary shaft 13 is restricted in the width direction of the long hole 17 and the movement is allowed in the length direction. In the upper bracket 11, a cam hole 19 on a circular arc is formed at a position opposite to the attachment hole 12 with respect to the long hole 17.
A pin 20 that penetrates the cam hole 19 stands and is fixed to the side surface of the lower bracket 14. At both ends of the cam hole 19, when the lower bracket 14 rotates with respect to the upper bracket 11, one end of the cam hole 19 comes into contact with the pin 20 and acts as a stopper that defines the range of rotation.
[0016]
As shown in FIG. 2, on the side surface of the lower bracket 14, a hook member 16 is rotatably attached to the lower bracket 14 by a pin 15 below the pin 20 and above the first groove 21. The hook member 16 is formed with a hook groove 22 that opens forward in the lower portion, and the groove 22 engages with the horizontal locking portion of the first striker 23 of the first striker mechanism 7, so that the first striker 23 is The configuration is such that the state of being fitted in the first groove 21 can be maintained.
[0017]
The first groove 21 provided in the lower bracket 14 opens downward as viewed in FIG. 2, but the second groove 24 that opens to the left is arranged in parallel with the first groove 21.
As shown in FIG. 1, the second groove 24 is engageable with the second striker 25 of the first striker mechanism 7.
[0018]
A locking groove is formed in the pin 15, a coil spring 27 is attached so that one end is locked in the locking groove and the other end is locked in a hole provided in the lower bracket 14, and the hook member 16 is always engaged with the first striker 23. Energize to rotate in the direction to stop. Further, a plurality of grooves extending in the length direction are formed in the outer diameter portion of the pin 15, and an operation lever 26 that is engaged with the groove and fixed to the pin 15 is attached through a hole at one end thereof.
[0019]
The other end of the operation lever 26 is fixed to a pin (not shown) of a first lock mechanism (not shown) attached to the opposite side of the seat 2. Thus, the hook member 16 can be released from the first striker 23 by pulling the operating lever 26 upward against the urging force of the coil spring 27.
[0020]
The fixing nut 28 is fitted with a pipe 18 extending horizontally and horizontally so as to connect the left and right upper brackets 11. One end of a coiled spring 29 is attached to the stopper on the outer diameter of the pipe 18. The other end of the spring 29 is locked to a pin 30 planted on the upper bracket 11. The flip-up spring 29 applies an acting force to the upper bracket 11 so as to rotate the seat 2 in the tumble state, that is, counterclockwise in FIG. When the seat 2 is tumbled or returned to the folded position, the spring 2 supports the weight of the seat 2 so that it can be operated lightly.
[0021]
The second locking mechanism 5 has a bracket portion 32 that projects downward from the rear portion of the seat cushion frame 3, and the bracket portion 30 includes a third groove 31. The third groove 31 is freely engageable with the rear third striker 33.
[0022]
The second locking mechanism 5 is a known locking mechanism including a latch (not shown) and a pawl that engages the latch, similar to an applicable locking mechanism such as an automobile door lock. The latch engages with the third striker 33, maintains the engagement when the rotation is stopped by the pole, and latches when the cable connected to the pole is pulled by the operating means (not shown). The latch is configured to release the engagement with the third striker 33.
Note that the cable may be configured to be interlocked with the folding operation of the seat back. When the lock mechanism is released, the seat 2 can be rotated forward around the rotation shaft 13 of the first lock mechanism, and can be brought into a tumble state.
[0023]
As shown in FIG. 2, the second groove 24 of the lower bracket 14 is defined by oppositely spaced side walls, and one of the side walls (upper side as viewed in FIG. 2) extends sideways horizontally and protrudes. A portion 34 is formed.
[0024]
The floor bezel 9 is made of a synthetic resin that covers the indented portion of the floor 6 on which the first and second strikers 23 and 25 are arranged, and at least the central portion of the horizontal portion of both the strikers 23 and 25 is opened to the outside. An opening 35 is provided.
The rear portion of the opening 35 forms a tapered side wall portion 36 that is open and wide on the rear side of the vehicle. The tapered side wall portion 36 is effective for guiding the lower bracket 14 in the direction of both strikers 23 and 25. The opening 35 is demarcated by oppositely spaced side walls, and the tapered side wall 36 provided on the side wall has a bottom wall 37 inclined downward. The lower bracket 14 may be guided along the bottom wall portion 37.
[0025]
The operation of attaching the seat device 1 configured as described above to the floor 6 will be described with reference to FIGS. 4 to 6 and FIG.
The sheet device 1 is placed on the floor 6. As shown in FIG. 4, in this state, the protrusion 34 of the lower bracket 14 sits on the floor 6 together with a part of the upper bracket 11 and a part of the rear bracket 32, and is behind the first striker mechanism 7. And located behind the second striker 25. The second striker mechanism 5 is located behind the third striker 33.
[0026]
As shown in FIG. 5, the seat device 1 is pushed forward as it is. During this operation, the operator can confirm the positions of the strikers 23 and 25 and the lower bracket 14 from above, so that the lower bracket 14 can be easily pushed toward the strikers 23 and 25. Further, the protrusion 34 of the lower bracket 14 is automatically guided in the correct direction by the tapered side wall portion 36 and the bottom wall portion 37 of the floor bezel 9 to further facilitate the operation of pushing the seat device 1.
Eventually, the projecting portion 34 comes into contact with the horizontal portion of the second striker 25 and notifies the operator of the end of the pushing operation.
[0027]
Next, as shown in FIG. 6, the rear portion of the seat apparatus 1 is lifted to engage the second striker 25 with the second groove 24 and engage the first groove 21 with the first striker 23. At this time, the arc-shaped portion of the hook member 16 slides on the horizontal portion of the first striker 23, and the hook member 16 is slightly rotated counterclockwise as viewed in FIG. 6 against the biasing force of the spring 27. The groove 21 is engaged with the first striker 23. This engagement is retained by the hook member 16.
[0028]
When the state shown in FIG. 6 is obtained, the sheet apparatus 1 is returned to the horizontal state shown in FIG. 1, and the third groove 31 is engaged with the third striker 33. The sheet device 1 rotates around the rotation shaft 13 and the amount of rotation is regulated by the contact between the pin 20 and the end of the cam hole 19.
[0029]
To remove the seat apparatus 1 in the state shown in FIG. 1 from the floor 6, the operation handle 26 is lifted and the hook member 16 is rotated so that the engagement between the first groove 21 and the first striker 23 can be released. 6, 5, and 4 may be performed opposite to the above-described mounting operation so as to create the state shown in FIGS.
[0030]
As is apparent from the above, the protrusion of the lower bracket and the tapered side wall portion of the floor bezel make it very easy to attach and remove the seat device to the floor, and reduce the man-hours for the work.
[Brief description of the drawings]
FIG. 1 is a front view showing a state in which a seat device is attached to a floor.
FIG. 2 is an exploded perspective view of a first locking mechanism.
FIG. 3 is a perspective view showing a floor bezel.
FIG. 4 is a front view showing a state in which the seat device is placed on the floor.
FIG. 5 is a front view showing a state in which the seat device is pushed forward.
FIG. 6 is a front view showing a state where a rear portion of the seat device is lifted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat apparatus 2 Seat 3 Seat cushion frame 4, 5 Locking mechanism 6 Floor 7, 8 Striker mechanism 9 Floor bezel 11, 14 Bracket 13 Rotating shaft 16 Hook member member 19 Cam hole 21, 22, 24, 31 Groove 23, 25 , 33 Strike 24 Protrusion 35 Opening 36 Tapered side wall 37 Bottom wall

Claims (4)

A first locking mechanism supported on the front portion of the seat cushion frame that supports the seat; and a second locking mechanism supported on the rear portion of the seat cushion. In an automotive seat device in which a first striker mechanism and a second locking mechanism are detachable from a floor-side second striker mechanism, an upper bracket that is fixed to a seat cushion frame, and a rotary shaft. And a lower bracket rotatably supported by the upper bracket. The lower bracket is mounted on the floor in a state where at least a part of the upper bracket and a part of the second locking mechanism are seated on the floor. An automobile seat device comprising a protrusion that is moved along the striker and makes contact with the striker constituting the first striker mechanism .   The vehicle seat device according to claim 1, wherein the lower bracket has first and second grooves, and the protrusion is formed on an extension of one side wall portion of the opposing side wall portion defining the second groove. The first striker mechanism that is detachable from the first locking mechanism supported in front of the seat cushion frame has a floor bezel, the floor bezel includes an opening for receiving the first locking mechanism, and the rear of the opening. 2. The automobile seat device according to claim 1, further comprising tapered side wall portions that are opposed to and separated from each other. A bottom wall portion to couple the tapered side wall portion facing the inclined surface and going on claim 3 Symbol mounting vehicle seat apparatus.

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