JP3931373B2 - Vehicle seat structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a retractable seat structure provided in a vehicle in which a projecting portion for storing an engine is formed on a floor panel such as a one-box car.
[0002]
[Prior art]
  For example, Japanese Utility Model Publication No. 56-1839 discloses a retractable seat structure provided in a vehicle. The vehicle floor is provided with a projecting part that houses the engine inside, so that when the seat is tilted forward, the seat cushion of the seat is positioned on the rear surface of the projecting part and the seat cushion of the seat is positioned on the upper surface of the projecting part. Is laid out to do. By taking such a configuration, the effective length of the luggage compartment can be increased.
[0003]
[Problems to be solved by the invention]
  However, even if such a configuration is adopted, the thickness portion of the seat cushion is still a dead space. For this reason, it is difficult to say that efficient storage is possible even in this configuration.
[0004]
  For the purpose of efficient storage, it is also conceivable to lay out the seat cushion so that the seat cushion is positioned on the upper surface of the protruding portion by tilting the seat forward. However, according to such a configuration, the seat cushion has to be lifted to a high position by the storing operation, and there is a problem that the operating force required for the storing operation becomes large and the operability is inferior.
[0005]
  The present applicant pays attention to the fact that there are an engine and a transmission that are covered by the protrusion, and that the transmission is located on the rear side of the vehicle with respect to the engine and that the occupied height is low. SUMMARY OF THE INVENTION An object of the present invention is to provide a seat structure that achieves further enlargement of the cargo compartment and also improves the storage operability thereof.
[0006]
[Means for Solving the Problems]
  The invention according to claim 1 is a vehicle seat structure in which a projecting portion that covers an engine and a transmission is formed on a floor panel of a vehicle, and a seat including a seat back and a seat cushion is disposed behind the projecting portion.A seat base that is pivotally mounted with a vehicle width direction as a rotation axis at a position behind the projecting portion and in the vicinity of the projecting portion with respect to the floor panel, and attached to the seat back, while the seat A first bracket that is rotatably attached to the base with the vehicle width direction as a rotation axis, and is attached to the lower surface of the rear end of the seat cushion, and extends rearward and obliquely upward in the vehicle traveling direction. A second bracket that is rotatably supported by the one bracket with the vehicle width direction as a rotation axis; Linked to both the middle portion of the seat base and the front lower end of the seat cushion, both ends of which are rotatably connected with the vehicle width direction as a rotation axis,The projecting portion includes a first step portion that covers the engine and a second step portion that covers the transmission and is formed lower than the first step portion.When the seat back is folded forward with respect to the seat cushion with respect to the seat cushion together with the first bracket rotatably supported by the seat base, the second bracket is the first bracket. The seat cushion to which the second bracket is attached is moved to the vehicle along with the movement of the second bracket. It moves forward and downward in the traveling direction, and the link is also folded on the seat base as the seat cushion moves, and the seat is moved to the seat base.Move forward with the pivot point on the floor panel as a fulcrumByWith the upper surface of the seat cushion facing forward in the vehicle traveling direction,The seat cushionButBehind the vehicle travel direction of the first step portion and above the second step portionThe seat back is configured to be positioned above the first step portion, respectively.Is a thing.
[0007]
  The invention according to claim 2 is the vehicle seat structure according to claim 1.,the aboveSeat backIsSoIn the folded state of,carThe position of the foremost end in both traveling directions is the above-mentioned shaft attachment partAgainstWhile being separated in the vehicle traveling direction, the separation distance can substantially coincide with the separation distance in the vertical direction between the shaft attachment portion and the first step portion.In placeIs.
[0008]
  Claim3The invention according to claim 12In the vehicle seat structure described above,Seat backIsTheBy folding the seat back, the separation distance substantially matches the separation distance in the vertical direction between the shaft attachment portion and the first step portion.It is provided in the positionIs.
[0009]
  Claim4The invention according to claim 11In the vehicle seat structure described above,Link, first and second bracketIn the folded state of the seat back, the position of the foremost end of the seat cushion in the vehicle traveling direction and the shaft mounting portion are separated from each other in the vehicle traveling direction, and the distance between the seat cushion and the second step is So that it can approximately match the vertical separation distancePositioning the seat cushion on the seat baseIs.
[0010]
  Claim5The invention according to claim 14In the vehicle seat structure described above,Link, first and second bracketThe seat back is folded so that the separation distance substantially matches the separation distance in the vertical direction between the shaft-attached portion and the second stepped portion.Position the seat cushionIs.
[0011]
  Claim6The invention according to claim 1 is the vehicle seat structure according to claim 1,Positioned above the projecting part by tilting forward with the pivoted part as a fulcrumHolding means for holding the sheet in that position is provided.
[0012]
  Claim7The invention according to claim 16In the vehicle seat structure described above, the holding means is the abovePositioned above the protrusionRelease means for releasing the holding by an operation different from applying a load in the vehicle traveling direction rearward to the seat is provided.
[0013]
  Claim8The invention according to claim 16In the vehicle seat structure described above, the holding means holds the seat at a position where the seat back or the seat cushion and the protruding portion are separated from each other.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  The present invention using the drawingsThe fruitExamples will be described. FIG. 1 is a side view of a vehicle equipped with a vehicle seat according to the present invention. Note that the arrow Fr is the front in the vehicle traveling direction. A protrusion 2 a that covers the engine 3 and the transmission 4 is formed on the floor panel 2 of the vehicle 1. A front seat 5 is attached to the protruding portion 2a. A second seat 6 is attached to the floor panel 2 behind the protruding portion 2a in the vehicle traveling direction. On the side of the vehicle, there are provided an opening 7 for an occupant to move up and down and carry luggage, and a slide door 8 covering the opening.
[0015]
  The transmission 4 is disposed behind the engine 3 in the vehicle traveling direction, and has a lower upper surface 4 a than the upper surface 3 a of the engine 3. The protrusion 2a that covers the engine 3 and the transmission 4 is located at the rear of the first step 2b that covers the upper surface 3a of the engine 3 and the first step 2b in the vehicle traveling direction, and the upper surface 4a of the transmission 4 The second step portion 2c is covered. The front seat 5 is attached to the first step 2b.
[0016]
  The second sheet 6 according to the present invention will be described with reference to FIGS. 2 shows a state in which the second sheet 6 is used, FIG. 4 shows a state in which the second sheet 6 is stored, and FIG. 3 shows a transient state between the respective states.
[0017]
  In FIG. 2, the second seat 6 includes a seat back 9, a seat cushion 10, and a seat base 11 as main components. The seat base 11 is rotatably attached to a rotary hinge portion 12 provided at a position near the protrusion 2a of the floor panel 2 behind the protrusion 2a in the vehicle traveling direction with the vehicle width direction as a rotation axis. The seat base 11 includes a base portion 11a that contacts the floor panel 2 in the usage state of the second seat in FIG. 2, a support portion 11b that is fixed to the rear end in the vehicle traveling direction of the base portion 11a in the usage state, and a support portion 11b. And a lever support portion 11c to be fixed. In addition, the base part 11a and the support part 11b are comprised from the pipe material for weight reduction.
[0018]
  A link 13 is connected to the intermediate portion of the seat base 11 and the lower end of the seat cushion 10 so as to be rotatable about the vehicle width direction as a rotation axis. Bracket 14 on seat back 9(First bracket)Is fixedly attached to the lever support portion 11c of the seat base 11 by the first portion 14a of the bracket 14 so as to be rotatable about the vehicle width direction as a rotation axis. Accordingly, the seat back 9 is attached to the lever support portion 11c so as to be rotatable forward and backward in the vehicle traveling direction. The bracket 14 is formed with a second portion 14b extending rearward in the vehicle traveling direction from the intermediate portion.
[0019]
  On the other hand, a bracket 15 is attached to the lower surface of the rear end of the seat cushion 10 and extends rearward and obliquely upward in the vehicle traveling direction.(Second bracket)And the elastic body 16 attached to the rear-end lower surface is provided. The most distal end of the bracket 15 of the seat cushion 10 is supported by the second portion 14b of the bracket 14 of the seat back 9 so as to be rotatable about the vehicle width direction as a rotation axis. The weight of the passenger on the seat cushion 10 is supported by the seat base 11 via the link 13 at the front end and supported by the seat base 11 via the bracket 15 and the bracket 14 at the rear end. Yes.
[0020]
  Reference numeral 17 denotes a lever supported by the lever support portion 11c. The reclining angle of the seat back 9 can be maintained at a desired angle when the occupant does not operate, and the seat back 9 (not shown) is operated by the occupant. Is disengaged from the lever support portion 11c, and the seat back 9 can be moved forward from the use state of FIG. 2 to the transient state of FIG.
[0021]
  FIG. 3 is a diagram showing a transient state in which the seat back 9 is moved forward by about 90 ° after the lever 17 is operated. By moving the seat back 9 forward, the seat back 9 rotates forward in the vehicle traveling direction about the first portion 14 a of the bracket 14. At this time, the second portion 14b of the bracket 14 is also displaced forward and downward around the first portion 14a together with the bracket 15. Due to this displacement, the link 13 also rotates forward in the vehicle traveling direction about the connection point with the seat base 11, so that the seat cushion 10 translates forward and downward. Since the rotation of the seat back 9 is restricted when the seat back 9 comes into contact with the seat cushion 10, the transition state shown in FIG. The elastic body 16 is in contact with the base portion 11a of the seat base 11 so that no abnormal noise or the like is generated. Although not shown, it goes without saying that such an elastic body may also be provided on the lower surface of the front end of the seat cushion 10.
[0022]
  Figure 4FIG. 4 is a view showing a retracted state in which the base portion 11a of the seat base 11 is flipped up about 90 ° around the rotary hinge portion 12 from the transient state of FIG. 3. At this time, the second seat 6 is located behind the front seat 5. The seat cushion 10 of the second seat 6 is located above the second step 2c of the protrusion 2a.soThe first step 2b is located behind the vehicle traveling direction. The seat back 9 of the second seat 6 is positioned above the first step 2b of the protruding portion 2a. Reference numeral 18 denotes a so-called partition bar that has both ends fixed to the side of the vehicle body and separates the front seat 5 and the rear luggage compartment of the vehicle.
[0023]
  FIG. 5 shows the storage state seen from another angle. Note that the arrow Fr is the front in the vehicle traveling direction. As shown in the figure, the second step 2c of the projecting portion 2a has a projecting portion 2d rearward in the vehicle traveling direction at the center of the vehicle width, and the transmission 4 is accommodated in the projecting portion 2d. And The base portion 11a is formed in a substantially U shape, and the cross pipes 11d and 11e connect the portions of the base portion 11a separated in the vehicle width direction by welding in order to reinforce the seat base 11. In order to reinforce the base portion 11a, the cross pipes 11d and 11e are connected to a joint portion of the support portion 11b to the base portion 11a.
[0024]
  In the retracted state of the second seat 6 shown in FIG. 4 or FIG. 5, a locking means is provided for locking and holding the seat base 11 in that position. FIG. 6 is a view showing the locking means, and is an enlarged view of the portion shown in FIG. 5A. A lock arm 19 is supported on the partition bar 18 so as to be rotatable about the vehicle width direction as a rotation axis, and a key-shaped portion 19a is formed at a tip portion thereof. The key-shaped portion 19a can be engaged with a portion of the base portion 11a extending in the vehicle width direction by the operation of the occupant when the seat base 11 is stored. In addition, the key type part 19a is comprised so that the engagement may not be disengaged by own gravity in the engaged state.
[0025]
  FIG. 7 is a view showing another embodiment of the locking means. A lock link 20 is rotatably supported on the base portion 11a with the vehicle width direction as a rotation axis, and a substantially cylindrical lock portion 20a extending in the vehicle width direction is formed at a tip portion thereof. On the other hand, the rotary hinge portion 12 is formed with a lock groove 12a into which the lock portion 20a is fitted. The lock portion 20a can be engaged with the lock groove 12a by the operation of the occupant when the seat base 11 is retracted. In addition, the lock part 20a is comprised so that the engagement may not be disengaged by own gravity in the engaged state.
[0026]
  FIG. 8 is a view showing a state in which the front seat 5 is reclined so that the occupant can take a nap. Here, the front seat 5 is moved to the foremost end by a slide rail (not shown). At this time, the reclining angle of the front seat 5 is regulated by the partition bar 18 so as not to press the second seat 6 in the retracted state. Further, even if the second seat 6 in the retracted state is pushed rearward in the vehicle traveling direction by the front seat 5, the locking means shown in FIG. 6 or 7 is applied to the second seat 6 in the retracted state. Since the lock is not released by a predetermined load in the rearward direction, the lock means is unintentionally unlocked, and the second seat 6 does not fall from the retracted state to the transient state shown in FIG.
[0027]
  FIG. 9 is a view showing a state in which a lid 21 called a so-called engine service cover is supported at the rear end so as to be openable and closable with respect to the projecting portion 2a, and the engine 3 can be serviced when the lid 21 is opened. It is. Here, when the occupant hooks the hook 22 on the partition bar 18, the lid 21 is maintained in an open state. Since the front seat 5 is mounted on the lid 21, the front seat 5 is lifted together with the lid 21. Here, the front seat 5 is moved to the foremost end by a slide rail (not shown), but there is a possibility that the front seat 5 may press the retracted second seat 6 backward in the vehicle traveling direction. Further, when the lid 21 rotates upward, the lower end of the seat back 9 in the retracted state and the lid 21 interfere with each other, so that the second seat 6 may be pressed backward in the vehicle traveling direction. Even in such a case, the locking means shown in FIG. 6 or 7 is not unlocked by a predetermined load applied to the second seat 6 in the retracted state in the rearward direction of the vehicle. On the contrary, the lock means is not unlocked, and the second seat 6 does not fall from the retracted state to the transient state shown in FIG.
[0028]
  When the seat base 11 is locked and held by the locking means shown in FIG. 6 or FIG. 7, as shown in FIG. 4, the seat back 9 and the seat cushion 10 do not contact the protruding portion 2a, that is, the protruding portion 2a. Configured to be spaced apart from each other. This is because the protruding portion 2a may be soiled by an occupant's foot or the like seated on the second seat 6 when the second seat 6 is in use, and the seat back 9 or the seat cushion 10 is caused by the dirty protruding portion 2a. It prevents it from being polluted.
[0029]
  10 and 11 are views showing different embodiments of the second sheet 6. In the second seat 6, the shape of the seat base 11 and the shape of the bracket 15 are different from those of the above-described embodiment. Note that the arrow Fr is the front in the vehicle traveling direction.
[0030]
  In this embodiment, the seat base 11 is composed of a pair of pipe members on the left and right in the vehicle traveling direction that extend in the front and rear directions in the vehicle traveling direction and whose front ends are rotatably supported by the rotary hinge portions 12 and 12 with the vehicle width direction as a rotation axis. Base parts 11a, 11a, support parts 11b, 11b made of a pair of pipe members before and after the vehicle traveling direction which are substantially U-shaped when viewed from the vehicle traveling direction and are connected to the base parts 11a, 11a by welding, respectively, and the vehicle traveling direction A pair of left and right lever support portions 11c, 11c that are connected to the ends of the support portions 11b, 11b by welding, and a cross pipe 11d that connects the left and right base portions 11a, 11a to reinforce the seat base 11. It consists of.
[0031]
  In this configuration, the support portion 11b and the lever support portion 11c can be arranged on the outer side in the vehicle width direction so as to ensure the length of the seat cushion 10 in the vehicle width direction, and the left and right base portions 11a are shown in FIG. It can be arranged on the inner side in the vehicle width direction than the step 22 located in the vicinity of the opening 7.
[0032]
  The bracket 15 is the same as the above embodiment in that the bracket 15 is rotatably supported by the second portion 14b of the bracket 14 of the seat back 9 with the vehicle width direction as a rotation axis. However, the bracket 15 is different in the following points. Yes. That is, the bracket 15 is formed of a pipe material for weight reduction, and reliably prevents interference with other members constituting the second seat 6 over the use state, the transient state, and the storage state of the second seat 6. Therefore, the seat back 9 and the seat cushion 10 are arranged behind the vehicle traveling direction. However, in order to prevent interference with the seat back 9 in the transient state or retracted state of the second seat 6, the bracket 15 is configured in a substantially U shape that protrudes rearward in the vehicle traveling direction when the second seat 6 is in use. The
[0033]
  The above two points are the parts of this embodiment that are different in configuration from the above-described embodiment, but the other parts perform the same operation as the above-described embodiment. more thanThe fruitIn the embodiment, the protrusion 2a of the floor panel 2 is constituted by the first step 2b and the second step 2c lower than the first step 2b, and the seat back of the second seat 6 in the retracted state. 9 is arranged on the first step portion 2b and the seat cushion 10 is arranged on the second step portion 2c, so that the luggage compartment is formed behind the second seat 6 in the stored state in the vehicle traveling direction. , The second seat 6 in the retracted state does not get in the way when the luggage is carried from the opening 7 of the slide door 8.
[0034]
  Further, since the lower second step 2c is formed in the protruding portion 2a and the seat cushion 10 in the retracted state is disposed on the second step 2c, the lifting amount of the seat cushion 10 when the second seat 6 is stored. (Indicated by h in FIG. 4) becomes smaller. For this reason, after having the above-mentioned effect, the operation force at the time of flipping up the second seat 6 can also be reduced.
[0035]
  In addition, the second seat 6 simply moves the seat back 9 forward in the vehicle traveling direction, and the height of the lowermost end portion of the seat cushion 10 in the retracted state (indicated by h in FIG. 4) (or the seat 6 In the transitional state of FIG. 2 is provided with a mechanism for automatically matching the distance between the rotary hinge portion 12 and the front end of the seat cushion 10 in the vehicle traveling direction) with the height of the second step portion 2c. The storage operation of the second seat 6 by operation becomes possible.
[0036]
  In addition, the second seat 6 simply moves the seat back 9 forward in the vehicle traveling direction, and the seat back 9 and the seat cushion 10 in the retracted state are displaced vertically (indicated by H in FIG. 4) (or the seat 6 The distance in the vehicle traveling direction between the foremost end of the seatback 9 and the foremost end of the seat cushion 10 in the transitional state is made to coincide with the difference in height between the first step 2b and the second step 2c. As described above, since the link mechanism for automatically setting the position of the seat back 9 and the seat cushion 10 is provided, the storing operation of the second seat 6 can be performed by a simple operation.
[0037]
  In addition, when H and h shown in FIG. 4 are added and considered, the second seat 6 simply moves the seat back 9 forward in the vehicle traveling direction, and the height of the lowermost end portion of the seat back 9 in the retracted state. (Denoted by H + h in FIG. 4) (or the separation distance in the vehicle traveling direction between the rotary hinge portion 12 and the foremost end of the seat back 9 in the transient state of the seat 6) and the height of the first step portion 2b Since the automatic matching mechanism is provided, it is possible to store the second seat 6 by a simple operation.
[0038]
  Next, the present inventionreferenceExamples will be described with reference to the drawings. FIG. 12 is a view showing a retracted state of the second seat 6 as viewed from the vehicle width direction. Note that the arrow Fr is the front in the vehicle traveling direction. thisreferenceIn the example, the seat back 9 is positioned above the seat cushion 10 in the retracted state of the second seat 6. That is, the seat cushion 10 is located above the second step 2c of the protruding portion 2a and behind the first step 2b in the vehicle traveling direction, and the seat back 9 is located above the seat cushion 10. It is. Although not shown in detail, when the second seat 6 is used, the seat back 9 is tilted rearward in the vehicle traveling direction using a normal reclining mechanism, and then the second seat 6 is centered on the rotary hinge 12. It has come to advance.
[0039]
  thisreferenceAccording to the example configuration,The fruitCompared with the embodiment, a little more operation force is required when the second seat 6 is flipped up. However, the cargo compartment length of the cargo compartment formed behind the second seat 6 in the retracted state of the vehicle is conventionally increased. The second seat 6 in the retracted state does not get in the way when the luggage is carried from the opening 7 of the slide door 8.
[0040]
  Moreover, the operation force when the second seat 6 is flipped up can be relatively reduced while having the above-described effects. Further, as shown by the broken line, even if the front seat 5 is reclined backward in the vehicle traveling direction or the lid 21 is opened, the seat back 9 is not positioned forward of the seat cushion 10 in the vehicle traveling direction. 5 or the lid 21 is less likely to interfere.
[0041]
  Moreover, RealIn the embodiment, the vertical displacement (indicated by H in FIG. 4) of the seat back 9 and the seat cushion 10 in the retracted state coincides with the height difference between the first step 2b and the second step 2c. Required a relatively complex linkage mechanism toreferenceIn the example, such a complicated link mechanism is not necessary, and the number of parts can be reduced.
[0042]
  In addition, RealThe height of the lowermost end portion of the seat cushion 10 in the retracted state (denoted by h in FIG. 4) described in the embodiment (or the lowest position of the rotary hinge portion 12 and the seat cushion 10 in the transient state of the seat 6). The mechanism for automatically matching the distance of the front end in the vehicle traveling direction) with the height of the second step 2c is not limited to the illustrated one, and can be achieved by various means. In FIG. 13 to FIG. 17, the arrow Fr is the front in the vehicle traveling direction.
[0043]
  For example, as shown in FIG. 13, two links 13 and 23 may be used in which the seat cushion 10 and the seat base 11 are separated from each other in the vehicle traveling direction, and the vehicle width direction is the rotation axis. When the seat cushion 10 is retracted, the links 13 and 23 rotate backward in the vehicle traveling direction about the connection point with the seat base 11 as indicated by a broken line. The rotation direction may be forward of the vehicle traveling direction.
[0044]
  Further, as shown in FIG. 14, a link 13 that rotates between the front end of the seat cushion 10 and the seat base 11 with the vehicle width direction as a rotation axis, and a rotation at the rear end of the seat cushion 10 with the vehicle width direction as a rotation axis. You may use the rod 24 attached freely. When the seat cushion 10 is used, the rod 24 is engaged with the cross pipe 11d (shown in FIG. 5). However, when the seat cushion 10 is stored, the link 13 is seat base as shown by the broken line. 11, the rod 24 is rotated forward in the vehicle traveling direction, and the rod 24 is rotated forward in the vehicle traveling direction around the connection point with the seat cushion 10. Further, the arrangement of the link 13 and the rod 24 may be exchanged so that the rod 24 is in front of the vehicle traveling direction.
[0045]
  Further, as shown in FIG. 15, two serially arranged links 25, 26 each rotating between the front end of the seat cushion 10 and the seat base 11 around the vehicle width direction as a rotation axis, and the rear of the seat cushion 10 A link 27 that is rotatably attached to the end about the vehicle width direction as a rotation axis may be used. When the seat cushion 10 is retracted, the links 25 rotate around the connecting point with the seat base 11 as shown by broken lines, and the links 26 are linked as shown by broken lines. The link 27 rotates forward in the vehicle traveling direction around the connection point with the link 25, and the links 27 rotate forward in the vehicle traveling direction around the connection point with the link 25 as indicated by a broken line. It has become.
[0046]
  In addition, as shown in FIG. 16, a link 13 is used in which the seat base 11 is relatively short, and the rear end of the seat base 11 and the seat cushion 10 are rotatably connected with the vehicle width direction as a rotation axis. Also good. When the seat cushion 10 is stored, the seat base 11 is rotated 180 ° to bring the link 13 upright as indicated by the broken line, and the seat cushion 10 is made to stand upright with respect to the link 13.
[0047]
  Furthermore, a slider mechanism may be used for the seat base 11 as shown in FIG. When the seat cushion 10 is stored, the seat cushion 10 may be moved to the frontmost position by a slider mechanism as shown by a broken line, and the seat cushion 10 may be tilted forward at that position.
[0048]
  In any of these link mechanisms, the height of the lowermost end portion of the seat cushion 10 in the retracted state of the second seat 6 (indicated by h in FIG. 4) (or the rotating hinge portion 12 in the transient state of the seat 6 and The distance in the vehicle traveling direction from the front end of the seat cushion 10 is automatically matched with the height of the second step 2c. Therefore, the second sheet 6 can be stored by a simple operation.
[0049]
  Although not shown in detail, the seat back 9 is tilted forward with respect to the seat cushion 10 by its reclining mechanism, so that the seat back 9 and the seat cushion 10 in the retracted state are displaced in the vertical direction (H in FIG. 4). (Alternatively, the distance in the vehicle traveling direction between the foremost end of the seat back 9 and the foremost end of the seat cushion 10 in the transitional state of the seat 6) and the first step 2b and the second step 2c. The length of the seat back 9 or the seat cushion 10, the arrangement of the links, the length, etc. are adjusted so that the height difference can be matched.
[0050]
  A mechanism for automatically matching the height of the lowermost end of the seat cushion 10 in the retracted state (indicated by h in FIG. 4) with the height of the second step 2c, or the seat back 9 and the seat in the retracted state The mechanism for matching the vertical displacement (indicated by H in FIG. 4) with the cushion 10 to the height difference between the first step 2b and the second step 2c can be achieved even by using a motor or the like, for example. it can. Furthermore, although the operation of the occupant is increased by one step, it may be made to coincide by the manual operation of the occupant.
[0051]
【The invention's effect】
  According to the configuration of claim 1, when the sheet is stored,The seat is stored with a pivot point of a seat base and a floor panel provided at a position behind the projecting portion of the floor panel and close to the projecting portion,Since the seat cushion is located on the second step portion, the length of the luggage compartment can be increased. In addition, when the opening of a slide door is provided in the vehicle side surface, there is no possibility that loading may be obstructed by the seat stored when loading a load from the opening. Furthermore, also in the storing operation, the seat cushion is positioned on the second step portion lower than the first step portion, so that the operation force of the storing operation can be reduced and the operability is improved.
[0052]
  AlsoIn the retracted state of the seat, the seat back is folded into the seat cushion, and the seat back is positioned on the first step portion, so that the seat back is stored at a low position, and the operation force of the storing operation is further reduced. The operability is improved.
[0053]
  Claim2With this configuration, since the seat is stored with the lower end of the seat back close to the first step portion, the operating force of the storing operation is further reduced, and the operability is improved. Claim3According to this configuration, the configuration is such that the necessary operation force for the storing operation is automatically reduced by the forward movement of the seat back, so that the storing operation can be easily performed.
[0054]
  Claim4According to this configuration, the seat is stored with the lower end of the seat cushion close to the second step portion, so that the operating force of the storing operation is further reduced and the operability is improved. Claim5According to this configuration, the configuration is such that the necessary operation force for the storing operation is automatically reduced by the forward movement of the seat back, so that the storing operation can be easily performed.
[0055]
  Claim6According to this configuration, the seat in the stored state can be held at that position, which is convenient. Claim7With this configuration, for example, the load from the front in the vehicle traveling direction relative to the seat in the retracted state (for example, pressing on the seat being retracted by reclining behind the front seat, or storing by opening the front engine service cover) Even if a pressure on the inner seat) is applied, the seat being stored does not fall backward against the occupant's will and safety is improved.
[0056]
  Claim8With this configuration, even if the protruding portion is soiled by the occupant's shoes when the seat is used, the seat cushion or seat back is held away from the protruding portion even in the retracted state, so the seat is stored. By making the state, it is possible to prevent the seat cushion or the seat back from becoming dirty.
[Brief description of the drawings]
FIG. 1 is a vehicle seat structure according to the present invention.The fruitIt is a whole side view showing an example.
FIG. 2 is a cross-sectional view of the main part of FIG. 1 in a sheet use state.
FIG. 3 is a cross-sectional view of the main part of FIG. 1 in a sheet transient state.
4 is a cross-sectional view of a main part of FIG. 1 in a sheet storage state.
5 is a perspective view of the seat structure of FIG. 1. FIG.
6 is an enlarged view of a main part showing a region A in FIG. 5;
FIG. 7 is an enlarged view of a main part showing a region B in FIG. 5;
FIG. 8 is a side view showing a state in which the front seat is reclined.
FIG. 9 is a side view showing a state in which an engine service cover is opened.
FIG. 10 is a perspective view of a seat showing a different embodiment.
11 is a perspective view of FIG. 11 viewed from a different angle.
FIG.referenceIt is a side view which shows an example.
FIG. 13 is differentReference exampleIt is a perspective view of the link mechanism which shows.
FIG. 14 is differentReference exampleIt is a perspective view of the link mechanism which shows.
FIG. 15 is differentReference exampleIt is a perspective view of the sheet | seat which shows.
FIG. 16 is differentReference exampleIt is a perspective view of the link mechanism which shows.
FIG. 17 is differentReference exampleIt is a perspective view of the link mechanism which shows.
[Explanation of symbols]
2 Floor panel
2a Projection
2b First step (first step)
2c Second step (second step)
3 Engine
4 Transmission
6 sheets
9 Seat back
10 Seat cushion
11 Seat base (storage means)
12 Rotating hinge part (axis attachment part)
13 links (folding means)
14 Bracket (folding means)
15 Bracket (Folding means)
19 Lock arm (holding means, release means)
20 Lock link (holding means, releasing means)

Claims (8)

In a vehicle seat structure in which a projecting portion that covers an engine and a transmission is formed on a floor panel of a vehicle, and a seat including a seat back and a seat cushion is disposed behind the projecting portion,
A seat base that is pivotally attached to the floor panel so as to be rotatable about the vehicle width direction as a rotation axis at a position behind the protrusion and in the vicinity of the protrusion;
A first bracket that is attached to the seat back, and is rotatably attached to the seat base with a vehicle width direction as a rotation axis;
A second bracket attached to the lower surface of the rear end of the seat cushion, extending rearwardly and obliquely upward in the vehicle traveling direction, and having a leading end thereof rotatably supported by the first bracket with the vehicle width direction as a rotation axis; ,
Linked to both the middle portion of the seat base and the front lower end of the seat cushion, both ends of which are rotatably connected with the vehicle width direction as a rotation axis,
The projecting portion includes a first step portion that covers the engine, and a second step portion that covers the transmission and is formed lower than the first step portion.
When the seat back is folded forward with respect to the seat cushion with respect to the seat cushion together with the first bracket rotatably supported by the seat base, the second bracket is the first bracket. The seat cushion to which the second bracket is attached is moved to the vehicle along with the movement of the second bracket. Moving forward and downward in the direction of travel, the link is also folded on the seat base as the seat cushion moves,
By ahead of the seat as a fulcrum shaft attachment portion to said seat base of the floor panel, the upper surface of the seat cushion in a state toward the vehicle forward traveling direction, the vehicle traveling in the seat cushion the first step portion A vehicle seat structure characterized in that the seat back is positioned rearward in the direction and above the second step portion, and above the first step portion, respectively . The seat back is in the folded state of its, with the position of the vehicle both traveling directions foremost end spaced longitudinal vehicle traveling direction relative to the axis deposition part, the separation distance is the shaft wear part and the first step portion The vehicle seat structure according to claim 1 , wherein the vehicle seat structure is provided at a position that can substantially coincide with a vertical separation distance between the vehicle seat structure and the vehicle. The seat back, the folding of the seat back, the distance is equal to or provided at a position so as to substantially coincide with the vertical distance between the shaft wearing part and the first step portion The vehicle seat structure according to claim 2 . The link, the first bracket, and the second bracket are separated from each other in such a manner that the position of the front end of the seat cushion in the vehicle traveling direction and the shaft-attached portion are separated in the vehicle traveling direction in the folded state of the seat back. 2. The vehicle seat according to claim 1 , wherein the seat cushion is positioned on the seat base such that the seat cushion can substantially coincide with a vertical separation distance between the shaft-attached portion and the second stepped portion. Construction. The link, the first bracket, and the second bracket are configured so that the seat cushion is folded so that the separation distance substantially coincides with the separation distance in the vertical direction between the shaft attachment portion and the second stepped portion. the vehicle seat structure according to claim 4, characterized in that positioning. 2. The vehicle seat structure according to claim 1, further comprising holding means for holding the seat positioned above the protruding portion at that position by being tilted forward with the pivoting portion as a fulcrum . It said holding means, by a different operation and adding a load to the vehicle traveling direction behind the sheet positioned above the projecting portion, to claim 6, characterized in that it comprises a releasing means for releasing the holding The vehicle seat structure as described. The vehicle seat structure according to claim 6 , wherein the holding means holds the seat at a position where the seat back or the seat cushion and the protruding portion are separated from each other.

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