JP2007284060A5 - - Google Patents

Description

Vehicle seat structure

  The present invention relates to a vehicle seat structure that can be stored in a storage recess formed in a vehicle body floor when the seat is not used.

Conventionally, as this type of vehicle seat structure, for example, as disclosed in Patent Document 1, a recess for storing a seat is provided in a vehicle body floor of a passenger car, and a seat including a seat back and a seat cushion is stored in the above-described storage structure. There is known one that is swingably disposed in the recess. In this case, the rear end of the bottom surface of the seat cushion when the seat is in use is swingably connected to the opening front edge of the housing recess via a connecting hinge. When the seat is not used, the seat back is first attached to the seat cushion. Fold it to the side, swing them together and store them in the storage recess. In this stored state, the bottom of the seat cushion is structured so as to be flush with the vehicle body floor, so that it is easy to place luggage and the convenience is improved.
Japanese Utility Model Publication No. 5-40029

  However, the conventional vehicle seat structure has a problem in that the seat cushion is connected to the vehicle body floor by the connecting hinge, and thus there is a great restriction on the layout of the seat on the vehicle body floor. That is, for example, if the clearance between the seat cushion and the vehicle body floor when using the seat is set to be large, the connecting hinge itself becomes large and protrudes on the vehicle body floor, which hinders the placement of luggage. .

  In the conventional vehicle seat structure, when the seat is stored, the bottom surface of the seat cushion is flush with the vehicle body floor, but the seat back is stored under the seat cushion. There is also a problem that dust, dust, and the like accumulated at the bottom of the storage recess are likely to adhere, which impairs the feeling of use of the sheet.

  The present invention has been made in view of such various points, and the object of the present invention is to reduce restrictions on the layout of the seat by devising a connection structure between the seat and the vehicle body, The purpose is to improve the feeling of use.

  In order to achieve the above object, in the solution means of the present invention, the seat is connected to the vehicle body side by a link member, thereby relaxing the constraints on the layout.

Specifically, according to the first aspect of the present invention, the seat comprising the seat cushion and the seat back is moved from the use state in which the seat cushion is spaced above the vehicle body floor to the storage recess formed on the vehicle body floor behind the seat cushion. The object is a vehicle seat structure that can be stored.

When the seat is a third row seat of a vehicle having three rows of seats in the front-rear direction , one end portion is rotatably connected to a rear portion of the seat cushion, while the other end portion Is rotatably connected to the vehicle body side in the storage recess, and is rotated around a connection position on the vehicle body side so that the seat is in use, and the bottom surface of the seat cushion faces the bottom surface of the storage recess. A link member that is moved between the storage state and the seat cushion at one end of the link member, and the connection position between the other end and the vehicle body side in the use state. Set to position .

  According to this configuration, since the seat and the vehicle body side are connected by the link member, the seat can be stored in the storage recess formed in the vehicle body floor, and the positional relationship between the seat and the storage recess is free compared to the conventional case. Can be determined. That is, restrictions on sheet layout can be relaxed.

  Further, since the seat side end (one end) of the link member is rotatably connected to the rear portion of the seat cushion, the seat back and the seat cushion can be pulled back together to remove the link member. It can be rotated around the end portion and moved to the storage recess.

  In the stored state, the bottom surface of the seat cushion is opposed to the bottom surface of the storage recess, so even if dust or dirt accumulates on the bottom of the recess, the dust or dust remains on the seat cushion. It does not adhere to the upper surface or seat back. Therefore, the feeling of use of the sheet is improved.

In addition, since the vehicle body side end (other end) of the link member is connected to the vehicle body side in the storage recess, the link member is also completely stored in the storage recess when the seat is stored, and protrudes from the vehicle floor. It becomes possible to make it completely free. It is more preferable that the front end portion of the seat cushion be close to the other end portion of the link in this seat use state (claim 5 ).

Furthermore, since the connection position with the seat cushion at one end of the link member is set so as to be located almost directly above the connection position with the vehicle body side at the other end in the use state, the seat seat surface in the use state is set. rather easy to properly set the height, moreover, since the link member sheet used state so extends substantially straight up and down direction, even so as to support a vertical load to the seat by the link member, There is no fear of causing the deformation. Particularly preferred in such a layout is to link the other end of the link member to the front end of the bottom surface of the housing recess (claim 3).

More preferably, at the front side portion of the seat cushion, a supported portion that is supported on the vehicle body side when the seat is used is provided (Claim 4 ). The load can be fully supported.

Further, with respect to the link member, it is preferable that at least two link members are arranged in parallel to each other in the vehicle width direction (Claim 2 ), and in this way, the seat is stabilized around the rotation axis in the vehicle width direction. It can be rotated and moved by the operation.

As described above, according to the vehicle seat structure in the invention of claim 1 Symbol placement, since the seat and the vehicle body side is connected by a link member, freely than the positional relationship between the sheet and the housing recess to the conventional Therefore, restrictions on the sheet layout can be relaxed.

  Further, since the end of the link member on the vehicle body side is connected to the storage recess, the vehicle body floor can be completely free of protrusions in the seat storage state.

  Further, it is possible to prevent dust, dust, and the like accumulated at the bottom of the storage recess in the sheet storage state from adhering to the seat back and the like, thereby improving the feeling of use of the sheet.

Furthermore, the substantially straight link member can sufficiently support the rear portion of the seat cushion without incurring deformation thereof. According to the invention of claim 4 , the front portion of the seat cushion can be supported. Can be supported on the vehicle body side.

According to the second aspect of the invention, the stability of the sheet storing operation is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. For convenience of explanation, first, a seat device configured based on the same technical idea will be described as a reference example, although a part of the configuration is different from that of the present invention. Will be described.

(Reference Example 1)
1 to 3 show a vehicle seat A according to Reference Example 1 of the present invention.

  As shown in FIG. 1, the seat A is provided, for example, as a third-row seat of a van-type or wagon-type vehicle, behind the second-row seat in the passenger compartment. have. Headrests 3, 3 are detachably attached to the upper end of the seat back 1, while the lower ends are connected to the rear end of the seat cushion 2 so as to be tiltable back and forth by a reclining mechanism (not shown) provided on both the left and right sides. .

  The vehicle body floor 4 behind the seat A is formed with a substantially rectangular storage recess 5 for storing the seat A when not in use. When the seat is not used, as shown in FIG. Is stored in a folded state on the side of the seat section 2.

  At the left and right side positions of the front end of the seat cushion 2, there are substantially tip portions (seat side end portions) of link members 6 and 6 (only one is shown in FIG. 2) bent to approximately 90 degrees. The base end portions (vehicle body side end portions) of the pair of link members 6 and 6 are bracketed on the vehicle body floor 4 in front of the storage recess 5. 7 and 7 (only one is shown in FIG. 2), each being rotatably connected around a rotation axis Y in the vehicle width direction.

  That is, as shown in FIG. 3, the distal ends of the pair of link members 6 and 6 are rotatably connected to the pair of brackets 9 and 9 welded to the frame 8 of the seat cushion 2 by bolts. The end portions are connected to brackets 7 and 7 welded to the vehicle body floor 4 in the same manner so as to be rotatable by bolts.

  In the seat use state of FIG. 1, the base end side portion of each link member 6 is in contact with the vehicle body floor 4 while the distal end portion of the link member 6 is on the vehicle body floor 4. The seat cushion 2 is supported so as to protrude substantially vertically upward. In FIG. 1, reference numerals 10 and 10 denote covers that cover connection portions between the link members 6 and 6 and the brackets 9 and 9, respectively.

  In addition, two front and rear catches 11 are provided on the left and right side surfaces of the seat cushion 2, respectively, and when the seat is used, strikers 12 and 12 (see FIG. 4) provided on the vehicle body side. The load applied to the seat cushion 2 by being engaged is supported. That is, these catches 11 and 11 are bolted to the side frames 8a and 8a of the frame 8 of the seat cushion 2 as shown in FIG.

  For example, as shown in FIG. 5, each of the catches 11 has a substantially U-shaped relationship that can rotate between an open position (indicated by a virtual line in the figure) and a closed position (indicated by a solid line in the figure). And a lock member 11b urged to a locked position (shown by a solid line in the figure) by a spring (not shown). The lock member 11b resists the urging force of the spring and is unlocked (same as the same). A cable 11c for pulling is connected to (shown in phantom lines in the figure).

  When each of the catches 11 and the striker 12 is engaged from above and below, first, the engaging member 11a in the open position is pressed from below by the upper pin 12a of the striker 12 and rotated upward, and the locking member 11b is moved. The upper pin 12a is gripped by being pushed up and positioned at the closed position. At the same time, the lock member 11b returns to the lock position by the biasing force of the spring, and prevents the engagement member 11a from rotating downward. At that time, the upper edge of the upper pin 12a of the striker 12 comes into contact with a stopper rubber (not shown) to support the load.

  In other words, when the seat is in use, a total of four catches 11, 11,... Provided on the right and left sides are engaged with the strikers 12, 12,. It is supposed to be.

  On the other hand, in the sheet storage state shown in FIG. 2, the pair of link members 6, 6 rotate about 180 degrees around the rotation axis Y, and the inner peripheral surfaces of the bent portions 6 a, 6 a are the opening front edges of the storage recess 5. While being in contact with 5a, the tip portion of the bent portions 6a, 6a is positioned so as to extend downward along the inner periphery of the storage recess 5. The seat cushion 2 is suspended at the front end by the link members 6 and 6, and the bottom surface 2a faces the bottom surface 5b of the storage recess 5, that is, in the storage recess 5 in substantially the same posture as the seat use state. It is stored. At that time, the back surface 1a of the seat back 1 folded substantially in parallel above the seat cushion 2 is substantially flush with the vehicle body floor 4.

  In FIG. 2, reference numeral 13 denotes a dial for switching the reclining mechanism of the seat back 1 between a locked state in which the seat back 1 cannot be tilted and a unlocked state in which the seat back 1 can be tilted. ,... Are levers for simultaneously opening the lock members 11b, 11b,.

  Next, the operation when the sheet A in use is stored in the storage recess 5 will be described with reference to FIGS.

  First, in the seat A in use as shown in FIG. 6, the left and right headrests 3, 3 are removed from the seat back 1, and the dial 13 is operated to move the seat back 1 toward the seat cushion 2 (same as above). Fold it until it becomes almost parallel (counterclockwise in the figure) (the state of FIG. 7), and in this state, lock the reclining mechanism. Subsequently, the lever 14 is operated to keep the catches 11, 11 closed, and as shown in FIG. 8, the seat cushion 2 is rotated around the rotation axis X and the rear part is lifted slightly upward. 11 and the striker 12 are disengaged.

  Then, by pulling back the seat back 1 and the seat cushion 2 integrally, as shown in FIG. 9, the seat back 1 and the seat cushion 2 are rotated back into the storage recess 5 around the rotation axis Y (clockwise in the figure). At this time, if the seat cushion 2 is moved while being held substantially horizontally, an object on the seat cushion 2 is not dropped onto the vehicle body floor 4.

  Finally, as shown in FIG. 10, the seat back 1 and the seat cushion 2 are integrally rotated downward about the rotation axis X so that the back surface 1 a of the seat back 1 is substantially flush with the vehicle body floor 4. The seat storage is finished. In this stored state, the seat cushion 2 is positioned on the lower side, and its bottom surface 2a faces the bottom surface 5b of the storage recess 5, so that even if dust or dust accumulates on the bottom of the storage recess 5, Does not adhere to portions other than the bottom surface 2a of the seat cushion 2, and thus the feeling of use of the seat A is not impaired.

  When the sheet A in the storage state is pulled out from the storage recess 5 to be used, the operations shown in FIGS. 6 to 10 may be performed in the reverse order in the opposite direction.

  Therefore, in this reference example 1, since the seat cushion 2 is connected to the vehicle body floor 4 by the link members 6, 6, the seat A can be stored in the storage recess 5, and the positional relationship with the storage recess 5 is compared with the conventional case. It can be decided freely. That is, restrictions on sheet layout can be relaxed. In the seat storage state, the link members 6 and 6 are bent along the vehicle body floor 4 and the storage recess 5, so that space efficiency is improved.

  On the other hand, when the seat is in use, the seat cushion 2 is supported by the catches 11, 11,... And the strikers 12, 12,. However, no load is applied to the link members 6 and 6. For this reason, it is possible to reliably prevent the deterioration of the sheet storage property due to the deformation of the link members 6 and 6.

  Further, when the seat A is stored in the storage recess 5, as shown in FIG. 8, the seat cushion 2 can be supported by the link members 6 and 6 protruding upward from the vehicle body floor 4 substantially vertically. The storage operation becomes easy. Further, since the link members 6 and 6 are provided in parallel to each other on the left and right (vehicle width direction), the stability during the rotational movement of the seat A is improved. In addition, since the distal ends of the link members 6 and 6 are rotatably connected to the front end of the seat cushion 2, it is possible to pull the seat back 1 and the seat cushion 2 backward without using a great force. And the sheet | seat A can be accommodated in the accommodation recessed part 5 by natural operation | movement.

(Reference Example 2)
FIGS. 11-13 shows the vehicle seat B which concerns on the reference example 2 of this invention.

  The seat B is configured to be housed in a housing recess 5 formed in the vehicle body floor 4 when not in use, similar to the seat A according to the reference example 1, but the seat A mainly includes The attachment position of the link member on the vehicle body side is different so that the seat B and the link members 20 and 20 are completely stored in the storage recess 5 when the sheet is stored. In addition, since the other structure of the said sheet | seat B is the same as that of the sheet | seat A, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted.

  In the seat B, a total of four link members 20, 20,... (Two only shown) are connected to the left and right sides of the seat cushion 2, respectively. Each link member 20 is formed in a substantially straight rod shape, and the distal end portion is connected to the rear portion of the seat 2 so as to be rotatable around the rotation axis X in the vehicle width direction, while the proximal end portion is a storage recess. 5 is connected to the bottom surface 5b of the vehicle 5 so as to be rotatable about a rotation axis Y in the vehicle width direction, and constitutes a parallel link mechanism for rotating the seat cushion 2 while maintaining a substantially horizontal state. That is, one of the two link members 20, 20,... On each of the left and right sides is a parallel link constituent member.

  11, the rear portion of the seat cushion 2 is supported by the four link members 20, 20,..., While the catches 11 provided on the left and right sides of the front end of the seat cushion 2 are used. , 11 are engaged with strikers 12, 12 provided on the vehicle body side in the front-rear direction to support the front portion of the seat cushion 2.

  When the seat B in the above-described use state is stored in the storage recess 5, first, the left and right headrests 3, 3 are removed from the seat back 1 in the same manner as in the case of the seat A, and the dial 13 Is operated to fold the seat back 1 toward the seat cushion 2 (counterclockwise in the figure) until it is substantially parallel (state shown in FIG. 12), and the reclining mechanism is locked in this state.

  Subsequently, the levers 14 are operated to release the catches 11, 11, and as shown in FIG. 13, when the seat back 1 and the seat cushion 2 are pulled back together, each link member 20 rotates around the rotation axis Y. The seat back 1 and the seat cushion 2 are housed in the housing recess 5. Thus, the seat back 1 and the seat cushion 2 can be stored easily and in a short time with a simple operation of moving the seat back 1 and the seat cushion 2 together.

  At this time, since the seat cushion 2 is rotationally moved while being held substantially horizontally by the link members 20, 20,..., It is possible to reliably prevent an object placed on the seat cushion 2 from falling onto the vehicle body floor. Can do. That is, for example, since the sheet B can be stored in the storage recess 5 with a thin cushion or the like laid on it, the usability is very good. Moreover, even if there is an object left on the seat cushion 2, damage due to the falling of the object onto the vehicle body floor 4 can be reliably prevented.

  Therefore, in the seat B of the reference example 2, the restriction on the layout of the seat can be relaxed similarly to the seat A of the reference example 1, and the rear portion of the seat cushion 2 is substantially straight when the seat is used. , And by supporting the front-side portion against the catches 11 and 11 and the strikers 12 and 12, to the seat B while preventing the deformation of the link members 20 and 20. Can be fully supported.

  Further, the base end portions of the link members 20 and 20 are connected to the storage recess 5, and the link members 20, 20,. For this reason, in the seat storage state, the vehicle body floor 4 can be made completely free of protrusions, which is very convenient when placing luggage or the like. In addition, as in the case of the sheet A, the feeling of use is not impaired by the adhesion of dust or dirt.

(Reference Example 3)
14 to 16 show a vehicle seat C as Reference Example 3 of the present invention. That is, in the seat C, the rear portion of the seat cushion 2 is supported by a pair of left and right link members 22 and 22 (only one is shown in the figure) and is rotated in synchronization with the rotation of the link members 22 and 22. The sub link members 23 and 23 for limiting the inclination of the seat cushion 2 are provided, and the sub link members 23 and 23 constitute an inclined state holding mechanism. In addition, since the other structure of the said sheet | seat C is the same as that of the sheet | seat A of the reference example 1, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted.

  In the seat C, as shown in FIG. 14, the distal ends of a pair of link members 22 and 22 (only one is shown in the figure) are provided on the left and right sides of the rear portion of the seat cushion 2. The base end portion is connected to the bottom surface 5b of the storage recess 5 so as to be rotatable about a rotation axis Y in the vehicle width direction, while being rotatably connected around X.

  Further, slide guides 24, 24 are provided on both the left and right side surfaces of the seat cushion 2 so as to extend in the longitudinal direction of the seat cushion 2. The sub-link member 23 is attached to the slide guides 24, 24 by a slide pin (not shown). The tip portions of the two are slidably and rotatably connected. On the other hand, the base end portion of each of the sub link members 23 is rotatably connected to a portion 22 a of about one third from the tip end portion of the link member 22. Thus, when each link member 22 rotates about the rotation axis Y to rotate the seat cushion 2, the sub link member 23 rotates synchronously around the connecting portion 22 a and the seat cushion 2 is moved. It is designed to maintain a substantially horizontal state.

  In the seat use state shown in FIG. 14, as in the case of the seat B described above, the rear portion of the seat cushion 2 is supported by the link members 22, 22, while the left and right side positions of the front end of the seat cushion 2 are supported. The pair of catches 11, 11 provided on the side engage with the pair of left and right strikers 12, 12 provided on the vehicle body side in the vertical direction, so that the front portion of the seat cushion 2 is supported. ing.

  And the operation | movement when accommodating the sheet | seat C in said use state in the accommodation recessed part 5 folds the seat back 1 to the seat cushion 2 side and locks like the case of the above-mentioned seat B, (The state of FIG. 15), it is only necessary to pull them back together, so that the seat C can be stored in the storage recess 5 while the seat cushion 2 is held substantially horizontal (the state of FIG. 16). .

Therefore, in the case of the sheet C, it is possible to obtain the same effects as the sheet B, and in addition, space saving and weight reduction can be achieved as compared with the parallel link mechanism.
(Embodiment)
17 to 19 show a vehicle seat D as an embodiment of the present invention. That is, in the seat D, the rear portion of the seat cushion 2 is supported by the pair of left and right link members 26 and 26, while the front portion is supported by the catches 11 and 11 (supported portions) and the strikers 12 and 12. It is what I did. In addition, since the other structure of the said sheet | seat D is the same as that of the sheet | seat A of the reference examples 2 and 3, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted.

  Then, as shown in FIG. 17, the operation when the sheet D in use is stored in the storage recess 5 is substantially the same as the case of the sheet B and the sheet C described above. That is, the seat back 1 is folded and locked to the seat cushion 2 side (shown in phantom lines in FIG. 18), and by pulling them backward together, the seat back 1 is rotated around the rotation axis Y. Then, the seat back 1 and the seat cushion 2 are integrally rotated around the rotation axis X and stored in the storage recess 5 (see FIG. 19). Status).

Therefore, in the case of the seat D, substantially the same operational effects as the seats B and C can be obtained except that the seat cushion 2 is not held substantially horizontally when the seat is stored. Further, it is possible to simple construction in comparison with those, cost reduction, space saving, there are advantages such as light weight.

It is a perspective view which shows the structure of the vehicle seat which concerns on the reference example 1 of this invention. FIG. 2 is a view corresponding to FIG. 1 illustrating a state in which a sheet is stored in a storage recess. It is a perspective view which shows the connection structure of the flame | frame of a sheet | seat, and a link member. It is a perspective view which shows the structure of the striker provided in the vehicle body side. It is explanatory drawing which shows the structure of the catch engaged with the striker of FIG. It is explanatory drawing which shows the sheet | seat use condition of the sheet | seat of FIG. It is explanatory drawing which shows the state which folded the seat back It is explanatory drawing which shows the state which removed the engagement of a catch and a striker. It is explanatory drawing which shows the state which rotated the sheet | seat to the accommodation recessed part. It is explanatory drawing which shows the state which accommodated the sheet | seat in the accommodation recessed part. FIG. 7 is a view corresponding to FIG. 6 according to Reference Example 2 of the present invention. FIG. 8 is a view corresponding to FIG. 7 according to Reference Example 2 of the present invention. FIG. 11 is a view corresponding to FIG. 10 according to Reference Example 2 of the present invention. FIG. 7 is a view corresponding to FIG. 6 according to Reference Example 3 of the present invention. FIG. 8 is a view corresponding to FIG. 7 according to Reference Example 3 of the present invention. FIG. 10 is a view corresponding to FIG. 10 according to Reference Example 3 of the present invention. FIG. 7 is a view corresponding to FIG. 6 according to the embodiment of the present invention. FIG. 10 is a view corresponding to FIG. 9 according to the embodiment of the present invention. FIG. 11 is a view corresponding to FIG. 10 according to the embodiment of the present invention .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat back 2 Seat cushion 2a The back surface of a seat cushion 4 Car body floor 5 Storage recessed part 5b Storage bottom face 26 Link member 11 Catch (supported part)
12 striker D sheet Y rotation axis

Claims (5)

In a vehicle seat structure that can be stored by moving a seat consisting of a seat cushion and a seat back from a use state in which the seat cushion is spaced above the vehicle body floor to a storage recess formed on the vehicle body floor behind it,
The seat is a third row seat of a vehicle having three rows of seats in the front-rear direction ,
One end is rotatably connected to the rear portion of the seat cushion, while the other end is rotatably connected to the vehicle body side in the storage recess, and rotates around the connection position on the vehicle body side. A link member is provided for moving the seat between the use state and a storage state in which the bottom surface of the seat cushion faces the bottom surface of the storage recess ;
The connecting position of the link member with the seat cushion at one end is set so as to be positioned substantially directly above the connecting position with the vehicle body side at the other end in the use state. Vehicle seat structure In claim 1,
A vehicle seat structure characterized in that at least two link members are arranged in parallel to each other in the vehicle width direction. Oite to claim 1,
A vehicle seat structure, wherein the other end of the link member is connected to the front end of the bottom surface of the storage recess . Oite to claim 1,
A seat structure for a vehicle, characterized in that a supported portion that is supported on the vehicle body side when the seat is used is provided at a front portion of the seat cushion . Oite to claim 1,
A vehicle seat structure, wherein the front end portion of the seat cushion is close to the other end portion of the link when the seat is stored .