JP2019155964A - Step structure for vehicle - Google Patents

Abstract

To provide a step structure for a vehicle in which a step hardly becomes a hindrance to an occupant, and which does not deteriorate the appearance of the vehicle.SOLUTION: A step structure 1 for a vehicle comprises a vehicle seat 10 having a seat cushion part 20 and a seatback part 30, and a guide part 40 for movably guiding the seat cushion part 20 of the vehicle seat 10 between a first position P1 in a cabin and a second position P2 outside the cabin. In the seat cushion part 20, a step in which a seat face 21 is directed upward in the first position P1, and a rear face 22 at a side opposite to the seat face 21 is directed upward at a lower place lower than a floor F in the second position P2 is formed.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a step structure provided in a vehicle.

  The following Patent Document 1 discloses a vehicle equipped with a boarding / alighting step device for assisting boarding / alighting. This boarding / alighting step device includes a movable step that is used by a passenger as a footboard when getting on or off. This step is configured to be movable between a storage position under the floor of the vehicle body and a deployment position outward in the vehicle width direction.

JP 2006-347509 A

  In the above-described boarding / alighting step device, the steps are stored under the floor of the vehicle body body except during boarding / alighting. However, even if the step is stored under the floor, it is in a position where it can be seen from the outside of the vehicle. For this reason, the step in the storage position can be a factor that reduces the appearance of the vehicle.

  Therefore, it is conceivable to set the step storage position in the vehicle interior so that the step at the storage position cannot be seen from the outside of the vehicle. However, when the storage position is set in the vehicle interior, the appearance of the vehicle is improved, but it interferes with the passengers in the vehicle interior when the step is in the storage position.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a vehicle step structure in which a step does not easily disturb an occupant and does not deteriorate the appearance of the vehicle.

One embodiment of the present invention provides:
A vehicle seat having a seat cushion portion and a seat back portion;
A guide portion that guides the seat cushion portion of the vehicle seat so as to be movable between a first position inside the vehicle interior and a second position outside the vehicle compartment;
With
The seat cushion portion forms a step in which the seat surface faces upward in the first position, and the back surface opposite to the seat surface in the second position is lower than the floor and faces upward. Configured for vehicle, step structure,
It is in.

  According to the above aspect, the seat cushion portion can be moved between the first position inside the vehicle interior and the second position outside the vehicle compartment by the guide portion. When the seat cushion portion is in the first position, the seat cushion portion is in a seatable state with the seating surface facing upward. On the other hand, the seat cushion portion forms a step when in the second position. This step uses the back of the seat cushion part and is located lower than the floor, so it can be used as a footrest for passengers when getting on and off, for simple seating of passengers, and for temporary storage of luggage. It can be used suitably.

  The seat cushion portion forming this step is not visible from the outside of the vehicle because it is disposed in the vehicle interior at the first position. For this reason, it can prevent the step in the first position from deteriorating the appearance of the vehicle. Further, the seat cushion portion is one element constituting the vehicle seat. For this reason, while the seat cushion part fulfill | performs the function as a step in a 2nd position, the function as a step is lose | eliminated in a 1st position, and it is comprised as a movable step which plays the original role of a vehicle seat. Accordingly, the seat cushion portion does not interfere with the passenger in the vehicle interior at the first position.

  As described above, according to the above aspect, it is possible to provide a vehicle step structure in which a step does not easily disturb an occupant and does not deteriorate the appearance of the vehicle.

The perspective view at the time of the seating mode of the vehicle step structure of Embodiment 1. FIG. The perspective view at the time of the step mode of the step structure for vehicles of FIG. The side view which looked at FIG. 2 from the left side. The front view which looked at FIG. 3 from the front. The perspective view at the time of the luggage compartment mode of the vehicle step structure of FIG. The side view which looked at FIG. 5 from the left side. The front view which looked at FIG. 5 from the front. The side view which looked at the mode at the time of the seating mode of the step structure for vehicles of Embodiment 2 from the left side. The side view which looked at the mode at the time of the step mode of the vehicle step structure of FIG. 8 from the left side.

  Preferred embodiments of the above aspects will be described below.

  In the vehicle step structure, the guide portion is rotatably supported by a bracket fixed to the floor and extends horizontally along the floor, and the seat cushion portion serves as the rotation shaft. A connecting arm to be connected, and the connecting arm is configured to guide the seat cushion portion between the first position and the second position by rotating about the rotating shaft. Is preferred.

  According to this step structure, it is possible to guide the seat cushion portion between the first position and the second position using an operation in which the connecting arm rotates about the rotation axis.

  In the above-described vehicle step structure, when the seat cushion part is guided toward the second position, the seat cushion part is separated from the rocker part of the vehicle body by a gap between the connecting cushion and the second part. It is preferable that an elastic member that contacts the rocker portion is attached so as to stop at the position.

  According to this step structure, when the seat cushion portion moves toward the second position, the elastic member attached to the connection arm comes into contact with the rocker portion of the vehicle body first, so that the seat cushion portion and the connection arm are locked. It is possible to prevent contact with the part. Further, the impact when the seat cushion portion stops at the second position can be mitigated by the elastic member.

In the above-described vehicle step structure, the seat back part is separate from the seat back part, and rotates between a standing position in which a backrest surface faces forward and a forward tilt position that is forwardly tilted from the standing position. Configured to be possible,
A seating mode in which an occupant can sit when the seat cushion portion is in the first position and the seat back portion is in the standing position; and the seat back portion is in the standing position and the seat cushion portion is It is preferable that one of a step mode in which the step is formed when in the second position is selectable.

  According to this step structure, the seat cushion part and the seat back part can be moved independently, so switching between the sitting mode and the step mode compared to the case where the seat cushion part and the seat back part are moved together. Work becomes easier.

In the above-described vehicle step structure, the seat cushion portion has a lower space in which the seat back portion in the forward-falling position can be disposed between the floor cushion and the floor at the first position,
In addition to the seating mode and the step mode, the seat back portion is moved back to the first position after the seat back portion is moved from the step mode to the first position, whereby the seat back portion is moved to the lower space. It is preferable that the cargo room mode disposed in the vehicle can be selected.

  According to this step structure, since at least three use modes are possible, variations in use modes can be increased.

  Hereinafter, an embodiment of a vehicle step structure (hereinafter also simply referred to as “step structure”) provided in a vehicle will be described with reference to the drawings.

  In the drawings for explaining the step structure, the forward direction is indicated by an arrow FR, the upper direction is indicated by an arrow UP, and the outward direction is indicated by an arrow OUT unless otherwise specified. The left-right direction is indicated by an arrow X, the up-down direction is indicated by an arrow Y, and the front-rear direction is indicated by an arrow Z. These directions and directions coincide with the directions and directions in the vehicle.

(Embodiment 1)
As shown in FIGS. 1 and 2, the step structure 1 includes a vehicle seat 10 and a guide portion 40. This step structure 1 is typically mounted on a commercial vehicle or a home delivery vehicle. This step structure 1 is mainly composed of a vehicle seat 10. For this reason, the step structure 1 can also be referred to as a “vehicle seat structure” including the vehicle seat 10 and the guide portion 40.

  The vehicle seat 10 is a passenger seat seat provided side by side with a driver seat (not shown) with respect to the floor F. A slide door 2 slidable along the front-rear direction Z is attached to the side of the vehicle seat 10 in the body body. When this sliding door 2 is opened, it is possible to get on and off through a door opening (not shown).

  The vehicle seat 10 includes a seat cushion portion 20 and a seat back portion 30. The seat cushion part 20 has a seat surface 21 on which an occupant sits. The seat back portion 30 has a backrest surface 31 that serves as a backrest for the occupant.

  Although details will be described later, the seat cushion portion 20 is configured to be movable between a first position P1 in the vehicle interior and a second position P2 outside the vehicle interior (see FIG. 2). The seat cushion part 20 forms a lower space S with the floor F at the first position P1. The lower space S is set with a dimension in the vertical direction Y so as to accommodate the seat back part 30 tilted forward.

  The seat back part 30 is a separate body from the seat cushion part 20, and is fixed to the floor F via a support part 50 different from the guide part 40. The seat back portion 30 is formed between a standing position Q1 (a position indicated by a solid line) with the backrest surface 31 facing forward, and a forward-turning position Q2 (a position indicated by a two-dot chain line) that is tilted forward from the standing position Q1. It is comprised so that rotation is possible. For this reason, when the seat cushion part 20 exists in the position which remove | deviated from the 1st position P1, the seat back part 30 can be rotated between the standing position Q1 and the front-falling position Q2.

  The guide part 40 has a function of guiding the seat cushion part 20 of the vehicle seat 10 so as to be movable between the first position P1 and the second position P2. In order to realize this function, the guide unit 40 includes a rotating shaft 41 and a connecting arm 42. Both of the rotating shaft 41 and the connecting arm 42 are preferably made of a metal material having a strength capable of withstanding the load received by the seat cushion portion 20.

  The rotation shaft 41 is a columnar shaft member, and is rotatably supported by two brackets 41a fixed to the floor F in the front-rear direction Z so as to be separated from each other. The rotating shaft 41 is configured to extend horizontally in the front-rear direction Z along the floor F in a state supported by the two brackets 41a.

  The connecting arm 42 is configured to connect the seat cushion portion 20 to the rotating shaft 41. When the seat cushion portion 20 is in the first position P1, the connecting arm 42 serves as a leg portion that supports only the left end portion from the lower side of both end portions in the left-right direction X. The seat cushion portion 20 is guided between the first position P1 and the second position P2 as the connecting arm 42 rotates about the rotation shaft 41.

  In addition, the support structure for supporting the right end part of the seat cushion part 20 in the 1st position P1 from the downward direction can also be added to the floor F side as needed. In this case, the leg portion of the seat cushion portion 20 is formed by both the support structure and the connecting arm 42.

  In addition, an elastic member 43 made of a resin material or a rubber material is attached to the connecting arm 42. The elastic member 43 has a gap D (see FIG. 2) between the seat cushion portion 20 and the rocker portion 3 of the vehicle body when the seat cushion portion 20 is guided toward the second position P2. It abuts against the rocker portion 3 so as to stop.

  The driving force of the electric motor 60 is input to the rotating shaft 41. The electric motor 60 is configured to drive the rotary shaft 41 in conjunction with the slide door 2 based on a control signal output from the control unit 61. The electric motor 60 is preferably housed in the floor F when it is desired to secure a space in the vehicle compartment or not to obstruct the movement of the passenger.

  The controller 61 outputs a control signal for rotating the rotary shaft 41 in the outward direction to the electric motor 60 when the sliding door 2 is opened. Thereby, when the sliding door 2 slides backward from the fully closed position to the fully open position, the seat cushion portion 20 is guided from the first position P1 to the second position P2 by the guide portion 40.

  On the other hand, the control unit 61 outputs a control signal for rotating the rotary shaft 41 in the inward direction to the electric motor 60 when the sliding door 2 is closed. Thus, when the slide door 2 slides forward from the fully open position to the fully closed position, the seat cushion portion 20 is guided from the second position P2 to the first position P1 by the guide portion 40.

  As shown in FIGS. 2 and 3, the support portion 50 is fixed to the floor F so as to be spaced apart from each other in the left-right direction X and the connecting shaft 51 that connects the two arms 30 a extending from the lower end portion of the seat back portion 30. And two brackets 52. The two brackets 52 are configured to rotatably support the connecting shaft 51.

  A plate-shaped step member 20 a is attached to the bottom of the seat cushion portion 20. A back surface 22 opposite to the seat surface 21 is formed by the lower surface of the step member 20a. For this reason, the seat cushion portion 20 is configured to form a step in which the seat surface 21 faces upward at the first position P1, while the back surface 22 faces upward at the second position P2. That is, the seat cushion portion 20 is configured to change up and down by a position change between the first position P1 and the second position P2.

  Note that the step member 20a attached to the bottom portion of the seat cushion portion 20 may be omitted, and the back surface 22 may be formed by the lower surface of the seat cushion portion 20 itself.

  As shown in FIG. 4, the seat cushion portion 20 stops at the second position P <b> 2 when the connecting arm 42 contacts the rocker portion 3 via the elastic member 43. At this time, the seat cushion portion 20 is disposed at a lower position than the floor F and above the ground G. Further, when the seat cushion portion 20 moves from the first position P1 to the second position P2, the lower space S between the seat cushion portion 20 and the floor F is expanded upward.

  If necessary, an elastic member similar to the elastic member 43 can be added to each part of the connecting arm 42. For example, when the seat cushion part 20 moves from the first position P1 to the second position P2, the connecting arm 42 and the floor F come into contact with each other by interposing an elastic member between the connecting arm 42 and the floor F. Can be prevented.

  Next, three use modes of the above step structure 1 will be described.

(Sitting mode)
As shown in FIG. 1, the seat cushion portion 20 is moved to the first position P1 and the seat back portion 30 is moved to the standing position Q1 to enter the seating mode. In the present embodiment, the seat cushion portion 20 is automatically moved to the first position P1 by the closing operation of the slide door 2 in a state where the seat back portion 30 is set to the standing position Q1 by the occupant.

  According to this seating mode, the normal vehicle seat 10 is formed by the seat cushion portion 20 and the seat back portion 30, so that a seatable state for the occupant is formed. The first position P1 at this time is a storage position (step storage position) where the seat cushion portion 20 as a step is stored in the vehicle interior.

(Step mode)
As shown in FIG. 2, the step mode is set by moving the seat cushion portion 20 to the second position P2 while keeping the seat back portion 30 in the standing position Q1. In the present embodiment, when the sliding door 2 is opened in the seating mode, the seat cushion portion 20 automatically moves to the second position P1.

  According to this step mode, the occupant can get off from the passenger compartment using the back surface 22 as a stepping platform, while being able to get on the back surface 22 from outside the passenger compartment. Further, since the lower space S is expanded upward and the moving space is expanded, the occupant can move freely using the lower space S as a passage. The second position P2 at this time is a deployment position (step deployment position or step use position) where the seat cushion portion 20 as a step is deployed outside the vehicle compartment.

  In this step mode, in addition to using the back surface 22 of the seat cushion portion 20 as a platform, it can also be used for a simple stool for a passenger, temporary storage of luggage, and the like. In this case, the back surface 22 of the seat cushion part 20 becomes a seating surface.

(Cargo mode)
As shown in FIG. 5, the seat back portion 30 is moved forward from the above-described step mode and moved to the position Q2, and then the seat cushion portion 20 is returned to the first position P1 to enter the luggage compartment mode. In the present embodiment, the seat cushion part 20 is automatically returned to the first position P1 when the occupant moves the seat back part 30 forward and sets it to the position Q2 in the step mode and the sliding door 2 is further closed. .

  According to this cargo compartment mode, the seat back portion 30 is disposed in the lower space S between the seat cushion portion 20 and the floor F. For this reason, the seat surface 21 of the seat cushion part 20 can be utilized as a mounting surface for luggage. Of course, the seat surface 21 of the seat cushion portion 20 can be used for temporary seating of the occupant in the cargo compartment mode.

  Below, the effect of the above-mentioned Embodiment 1 is demonstrated.

  According to the first embodiment described above, the seat cushion portion 20 can be moved by the guide portion 40 between the first position P1 in the vehicle interior and the second position P2 outside the vehicle interior. When the seat cushion portion 20 is in the first position P1, the seat cushion portion 20 is in a seatable state with the seating surface 21 facing upward. On the other hand, the seat cushion portion 20 forms a step when it is in the second position P2. Since this step uses the back surface 22 of the seat cushion portion 20 and is located lower than the floor F, the passenger's footrest when getting on and off, a simple stool, temporary storage of luggage, etc. Can be suitably used.

  The seat cushion portion 20 forming this step is not visible from the outside of the vehicle because it is disposed in the vehicle interior at the first position P1. For this reason, it is possible to prevent the step at the first position P1 from deteriorating the appearance of the vehicle, that is, from deteriorating the appearance. Further, the seat cushion portion 20 is one element constituting the vehicle seat 10. For this reason, the seat cushion portion 20 is configured as a movable step that fulfills the function as a step at the second position P2, but does not function as a step at the first position P1, and plays the original role of the vehicle seat 10. Therefore, the seat cushion portion 20 does not interfere with the passenger in the vehicle interior at the first position P1.

  As described above, according to the above-described first embodiment, it is possible to provide the step structure 1 in which the step does not easily disturb the occupant and does not deteriorate the appearance of the vehicle.

  According to the step structure 1 described above, it is possible to guide the seat cushion portion 20 between the first position P1 and the second position P2 by using an operation in which the connecting arm 42 rotates around the rotation shaft 41. Become.

  According to the step structure 1 described above, when the seat cushion portion 20 moves toward the second position P2, the elastic member 43 attached to the connecting arm 42 comes into contact with the rocker portion 3 of the vehicle body first. It is possible to prevent the cushion portion 20 and the connecting arm 42 from contacting the rocker portion 3. Further, the elastic member 43 can mitigate the impact when the seat cushion portion 20 stops at the second position P2.

  According to the above step structure 1, since the seat cushion part 20 and the seat back part 30 can be moved independently, the seating mode and the step are compared with the case where the seat cushion part 20 and the seat back part 30 are moved together. Switching between modes is easier.

  According to the step structure 1 described above, at least three use modes (sitting mode, step mode, luggage room mode) are possible, and variations of the use mode can be increased.

  Next, another embodiment related to the first embodiment will be described with reference to the drawings. In other embodiments, the same elements as those of the first embodiment are denoted by the same reference numerals, and the description of the same elements is omitted.

(Embodiment 2)
As shown in FIG. 8, the step structure 101 of the second embodiment is different from the structure of the vehicle seat 10 according to the first embodiment only in the structure of the vehicle seat 110.
Other configurations are the same as those of the first embodiment.

  In the vehicle seat 110, the seat cushion part 20 and the seat back part 30 are integrated via a hinge part 111. The seat back portion 30 is configured to be rotatable via a hinge portion 111 from a standing position Q1 to a forwardly tilted position Q2 where the backrest surface 31 contacts the seat surface 21 of the seat cushion portion 20.

  As shown in FIG. 9, when the step structure 101 is switched from the seating mode to the step mode, the seat back portion 30 is moved forward relative to the seat cushion portion 20 at the first position P1 and rotated to the position Q2, and then the guide The seat cushion portion 20 is guided to the second position P2 by the portion 40. In this step mode, the entire vehicle seat 110 moves outside the passenger compartment, the seat cushion portion 20 is turned upside down, the back surface 22 forms a step, and the seat back portion 30 is disposed below the seat cushion portion 20. It is comprised so that.

According to the step structure 101 of the second embodiment, in the step mode of the vehicle seat 110, a step can be formed using the back surface 22 of the seat cushion portion 20 integrated with the seat back portion 30.
In addition, the same effects as those of the first embodiment are obtained.

  The present invention is not limited only to the above-described embodiments, and various applications and modifications can be considered without departing from the object of the present invention. For example, the following embodiments applying the above-described embodiment can be implemented.

  In the above-described embodiment, the case where the seat cushion portion 20 is guided between the first position P1 and the second position P2 by rotating the connection arm 42 about the rotation shaft 41 is illustrated. The movement is not limited to rotation. For example, the seat cushion 20 is moved between the first position P1 and the second position P2 using a structure in which the connecting arm 42 slides in the left-right direction X or the vertical direction Y. You may make it guide.

  In the above-described embodiment, the case where the connecting arm 42 of the guide unit 40 is rotated around the rotation shaft 41 by the driving force of the electric motor 60 is illustrated, but instead, the passenger is connected without using the electric motor 60. The arm 42 may be manually rotated.

  In the above-described embodiment, the case where the step structures 1 and 101 are constructed using the vehicle seats 10 and 110 of the passenger seat is described. Instead, the vehicle is positioned in front of the back door in the rear seat of the vehicle such as a minivan. A step structure can also be constructed using a vehicle seat. In this case, with the back door opened, the seat cushion portion of the vehicle seat in the rear seat is used between the first position in the vehicle interior and the second position outside the vehicle interior using the same means as the guide portion 40. Can guide.

1,101 Step structure for vehicle (step structure)
DESCRIPTION OF SYMBOLS 3 Rocker part 10,110 Vehicle seat 20 Seat cushion part 21 Seat surface 22 Back surface 30 Seat back part 31 Backrest surface 40 Guide part 41a Bracket 41 Rotating shaft 42 Connecting arm 43 Elastic member F Floor P1 1st position P2 2nd position Q1 Standing up Position Q2 Forward position S Lower space

Claims (5)

A vehicle seat having a seat cushion portion and a seat back portion;
A guide portion that guides the seat cushion portion of the vehicle seat so as to be movable between a first position inside the vehicle interior and a second position outside the vehicle compartment;
With
The seat cushion portion forms a step in which the seat surface faces upward in the first position, and the back surface opposite to the seat surface in the second position is lower than the floor and faces upward. A vehicle step structure configured as described above.   The guide portion includes a rotating shaft that is rotatably supported by a bracket fixed to the floor and extends horizontally along the floor, and a connecting arm that connects the seat cushion portion to the rotating shaft. 2. The vehicle according to claim 1, wherein the connecting arm is configured to guide the seat cushion portion between the first position and the second position by rotating about the rotation shaft. Step structure.   The connecting arm includes a rocker that stops the seat cushion portion at the second position with a gap between the seat cushion portion and the rocker portion of the vehicle body when the seat cushion portion is guided toward the second position. The vehicle step structure according to claim 2, wherein an elastic member that comes into contact with the portion is attached. The seat back part is separate from the seat back part, and is configured to be rotatable between an upright position in which a backrest surface faces forward and a forward-down position that is forward-turned from the upright position,
A seating mode in which an occupant can sit when the seat cushion portion is in the first position and the seat back portion is in the standing position; and the seat back portion is in the standing position and the seat cushion portion is The vehicle step structure according to any one of claims 1 to 3, wherein the vehicle step structure is configured to be able to select any one of a step mode in which the step is formed when the second position is set. The seat cushion portion has a lower space in which the seat back portion in the forward-down position can be disposed between the floor and the floor in the first position,
In addition to the seating mode and the step mode, the seat back portion is moved back to the first position after the seat back portion is moved from the step mode to the first position, whereby the seat back portion is moved to the lower space. The vehicle step structure according to claim 4, which is configured to be capable of selecting a cargo compartment mode arranged in the vehicle.

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