JP3998943B2 - Vehicle entry / exit assistance seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a boarding / alighting assistance seat that is attached to a seat and can be folded and retracted in order to facilitate a boarding / alighting of a vehicle such as a handicapped person.
[0002]
[Prior art]
As such a boarding / alighting assist seat, there is a conventional seat as shown in FIG.
(A) of a figure shows a storage state and (b) shows a use state.
In the retracted state, the entry / exit assisting seat 50 is configured such that the auxiliary seat seat 52 is raised on the side of the seat 1 of the vehicle so that the door can be closed, and in use, the lower side of the assist seat seat 52 is tilted outward with the hinge shaft as a hinge shaft. The seat surface is substantially the same height as the seat 1 of the vehicle.
[0003]
[Problems to be solved by the invention]
However, in the conventional boarding / alighting assist seat 50, since the hinge shaft is set close to the seat surface height of the vehicle seat 1, in the retracted state, the auxiliary seat seat portion 52 is more than the seat surface of the vehicle seat 1. Since it protrudes high, there is a problem that it becomes an obstacle to getting on and off for those who do not need a boarding / aiding seat.
In addition, the auxiliary seat portion 52 must be tilted during use, and any operations that are performed during storage must be performed manually, which is troublesome.
Further, since the auxiliary seat 52 protrudes to the side in the use state, the door cannot be closed due to interference unless it is manually stored firmly.
[0004]
Therefore, in view of the above-mentioned problems, the present invention does not obstruct getting on and off in a stored state even for a person who does not need a boarding / alighting assist seat, and further, getting on and off a vehicle that requires little manual operation for storage and setting to a used state. The purpose is to provide an auxiliary sheet.
[0005]
[Means for Solving the Problems]
For this reason, the present invention of claim 1 is connected to a fixed side member provided on a side portion of a vehicle seat by a link mechanism having an upper link and a lower link, and from a vertical position along the side portion of the seat. An auxiliary seat cushion that can be pulled out upward to change its posture to a horizontal position, and a holding member that is rotatably supported at one end by a fixed-side member and that can engage the auxiliary seat cushion at a horizontal position at the other end When the auxiliary seat cushion is in the vertical position, the retracted state is used.When the auxiliary seat cushion is in the horizontal position, the upper end of the auxiliary seat cushion is in the same level as the seat surface of the vehicle seat. It was assumed that it was set.
[0006]
Further, the link mechanism is provided with a spring for urging the retracted state from the retracted state to the used state, and has an engaging means for engaging the other end of the holding member with the auxiliary seat cushion when the auxiliary seat cushion is in the horizontal position. It was supposed to be.
When the predetermined restriction is released, the auxiliary seat cushion automatically expands to the use state, and the use state is held by the holding member and becomes usable.
[0007]
In the invention of claim 2 , the fixed side member is a base bracket, the auxiliary seat cushion is fixed to the cushion support bracket, the auxiliary seat cushion side of the upper link and the lower link is connected to the cushion support bracket, and the engagement means includes: The locking piece provided on the cushion support bracket, the locking bracket having a long hole provided near the other end of the holding member, and the cushion support bracket rotatably supported by the end, and the tip engaged with the long hole of the locking bracket. It was comprised from the joined connection member.
The whole is formed as one unit and can be installed simply by attaching the base bracket to the side of the vehicle seat.
[0008]
According to the third aspect of the present invention, the key lock is attached to the cushion support bracket, and the stored state is maintained by inserting the key of the key lock into the key hole formed in the corresponding upper link or lower link.
[0009]
According to the fourth and fifth aspects of the present invention, a storage auxiliary member capable of contacting the upper end portion of the auxiliary seat cushion during the posture change from the storage state to the use state is provided on the inner wall of the door of the vehicle.
Since the link mechanism is urged from the retracted state toward the use state by the spring, the link mechanism is expanded to the use state and folded into the retracted state as the door is opened and closed.
[0010]
According to the sixth aspect of the present invention, the storage auxiliary member is a storage auxiliary belt that extends downward from the armrest of the door.
When the door is closed, the pressing force to the upper end portion of the auxiliary seat cushion is close to the locus of the upper end portion due to the bending of the belt, so that the storage becomes smoother.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
FIG. 1 is a rear view showing an embodiment applied to a driver's seat of a right-hand drive vehicle, and shows a state where a door is closed. FIG. 2 is a perspective view of a boarding / alighting assist seat. 1 and 2 both show the stored state of the boarding / alighting assist seat.
The boarding / alighting support seat 10 is installed as a unit on the side of the driver seat 1.
[0012]
The auxiliary seat cushion 11 is attached to the cushion support bracket 12 with bolts (not shown). The cushion support bracket 12 is linked to the base bracket 16 (16a, 16b) at both ends in the width direction (vehicle front-rear direction) by the link mechanism 20 (20a, 20b). ).
The link mechanism 20 includes an upper link 22 and a lower link 24.
Each of the base brackets 16a and 16b has an attachment surface 17 attached to a side portion of the driver seat 1 with a bolt (not shown) and a link attachment wall 18 bent at a right angle from the attachment surface 17.
[0013]
The cushion support bracket 12 also has an upper link mounting wall 14 bent at a right angle from the auxiliary seat cushion mounting surface 13 on the upper side of both ends, and a lower link mounting wall 15 on the lower side of both ends.
The front and rear upper links 22 are rotatably connected at their ends to the upper portion of the link mounting wall 18 of the base bracket 16 and the upper link mounting wall 14 of the cushion support bracket 12. Further, the front and rear lower links 24 are rotatably connected at their respective ends to a position below the connecting portion of the upper link 22 of the link mounting wall 18 and the lower link mounting wall 15 of the cushion support bracket 12.
[0014]
The upper link 22 is disposed on the outer side of the link mounting wall 18 in the front-rear direction, and the lower link 24 is disposed on the inner side of the link mounting wall 18, and correspondingly, the upper link mounting wall 14 and the lower link of the cushion support bracket 12 are disposed. The mounting wall 15 is offset from each other in the front-rear direction.
[0015]
A rod support bracket 33 is provided below the link mounting wall 18 of the base brackets 16a and 16b, and supports the load support rod 30 in a rotatable manner. The load support rod 30 includes base portions 31 and 31 that extend in the front-rear direction and are supported by the rod support bracket 33, and offset portions 32 that are offset from both base portions by being bent into a crank shape at a rising portion 32a.
On the upper side of the cushion support bracket 12, a bent locking piece 39 is provided in parallel with the offset portion 32 of the load support rod.
[0016]
Pins 41 and 42 are provided outwardly in the front-rear direction in the vicinity of the intermediate part of the front and rear lower links 24 and the upper link 22 connection part of the link mounting wall 18, and the coil spring 40 is stretched between the pins. ing.
A hole 19 is formed in the link mounting wall 18 of the base bracket 16 in a predetermined region including the pin 41 of the lower link 24 from the vicinity of the pin 42 that locks the upper end of the coil spring 40, and the storage position of the auxiliary seat cushion 11 to be described later. The pin 41 does not interfere with the link mounting wall 18 during rotation of the lower link 24 from the position to the use position.
[0017]
A key hole 26 is formed in the upper link 22.
A key lock 45 is attached to the cushion support bracket 12 on the inner side of one upper link attachment wall 14 so that the key 46 can protrude from a hole formed in the upper link attachment wall 14. 1 and 2, the key 46 can be inserted into the key hole 26 of the upper link 22.
[0018]
A locking bracket 34 having a long hole 35 is attached to the offset portion 32 of the load support rod 30 and a bracket 36 for rotatably supporting the link rod 37 on the cushion support bracket 12 in the vicinity thereof is provided. . A hook portion 38 at the tip of the link rod 37 is engaged with the elongated hole 35 of the locking bracket 34.
[0019]
As shown in FIGS. 2 and 3, the inner wall of the driver's seat door 3 is provided with a storage auxiliary belt 5 whose upper end is attached to the armrest 4 and extends downward, and whose lower end is fixed to the inner wall of the door by the mounting bracket 6. Has been. The storage auxiliary belt 5 is provided at a position corresponding to the rising portion 32a of the front / rear direction offset portion 32 in a state where the driver's seat door 3 is closed.
The lower end of the storage auxiliary belt 5 is set at a position slightly lower than the height of the auxiliary seat cushion 11 in the use state described later.
[0020]
Next, the operation in the above configuration will be described.
First, in the retracted state of FIG. 1, the periphery of the upper end portion of the auxiliary seat cushion 11 (here, the offset portion 32 of the load support rod 30) is pushed by the retractable auxiliary belt 5 of the driver's seat door 3 in the closed state. Is standing vertically.
When the driver's seat door 3 is opened, the lower link 24 is rotated by the tensile force of the coil spring 40, and the auxiliary seat cushion 11 has the rising portion 32 a of the offset portion on the storage auxiliary belt 5 as shown by the phantom line in FIG. 4. The upper end of the auxiliary seat cushion 11 itself moves to the horizontal position while drawing a trajectory that slides on the auxiliary storage belt 5 and then falls outward while sliding.
[0021]
During this time, the load support rod 30 rotates using the rod support bracket 33 as a fulcrum, but the offset portion 32 is connected to the cushion support bracket 12 by the link rod 37 via the locking bracket 34, and the rotation range is restricted. Thereby, when the auxiliary seat cushion 11 becomes horizontal, the offset portion 32 of the load support rod 30 engages with the locking piece 39 of the cushion support bracket 12.
Therefore, even if the driver's seat door 3 is further opened and separated from the auxiliary seat cushion 11, the auxiliary seat cushion 11 remains in a horizontal state and is in use as shown in FIG.
[0022]
Next, when the driver's seat door 3 is closed from this use state, the upper end portion (the outer end in the use state) of the auxiliary seat cushion 11 is pushed by the storage auxiliary belt 5. Accordingly, the auxiliary seat cushion 11 is urged in the reverse direction along the same locus as shown in FIG. 4 to help the storage auxiliary belt 5 bend and the direction of the pressing force to be obliquely upward. When completely closed, the storage state shown in FIG. 1 is obtained.
[0023]
Even when the driver's seat door 3 is left open, it can of course be stored by lifting the upper end of the auxiliary seat cushion 11 and pulling it to the room side by hand (or pushing it from outside the vehicle).
When the key lock 45 is operated and the key 46 is inserted into the key hole 26 of the upper link 22 in the state of being manually stored in this manner, the stored state is maintained without being pressed by the storage auxiliary belt 5 of the driver seat door 3.
[0024]
In this case, every time the driver's seat door 3 is opened, the auxiliary seat cushion 11 does not expand to the use state. Since the upper end of the auxiliary seat cushion 11 is lower than the seat surface 2 of the driver's seat 1 in the retracted state, the auxiliary seat cushion 11 does not get in the way for healthy persons who do not need to use the auxiliary seat cushion 11.
[0025]
Since the embodiment is configured as described above, the auxiliary seat cushion 11 is automatically used and stored as the driver's seat door 3 is opened and closed, so that troublesome operation is not required. Getting on and off is easy.
Moreover, since the auxiliary seat cushion 11 is held at a position lower than the seat surface 2 of the driver's seat 1 by locking in the retracted state, there is no hindrance when the auxiliary seat cushion 11 is not required.
[0026]
In addition, although embodiment demonstrated the example which provided the auxiliary seat cushion 11 in the driver's seat 1, it is not limited to this, It can install in arbitrary seats. Further, in the retracted state, the upper end of the auxiliary seat cushion 11 is set lower than the seat surface 2 of the driver seat 1, but the height of the upper end of the auxiliary seat cushion 11 is substantially the same level as the seat surface 2 of the driver seat 1. If there is a slight protrusion from the seating surface 2, there is no substantial obstacle.
[0027]
Further, the coil spring 40 that biases the link mechanism 20 is stretched between the base bracket 16 and the lower link 24. However, if an arrangement space is obtained, the base bracket 16 and the upper link 22 or the upper link 22 and the lower link 24 are provided. It is good also as what stretches between them.
Further, although the offset portion 32 of the load support rod 30 is connected to the cushion support bracket 12 via the link rod 37, a chain may be used instead of the link rod 37, for example.
[0028]
Further, in the embodiment, the rising portion 32a of the offset portion of the load support rod 30 slides on the storage auxiliary belt 5 near the storage state, and the upper end portion of the auxiliary seat cushion 11 itself becomes the storage auxiliary belt 5 as it approaches the use state. Although it is designed to slide on the upper side of the auxiliary seat cushion 11, the auxiliary seat cushion 11 is always used from the stored state to the used state by setting the height of the auxiliary seat cushion 11 in use and the height of the offset portion 32. You may make it contact | abut.
[0029]
【The invention's effect】
As described above, the boarding / alighting assist seat according to the present invention is configured such that the auxiliary seat cushion is connected to the fixed member by the link mechanism having the upper link and the lower link, and is moved upward from the retracted state in the vertical position along the side portion of the seat. Pull out to change the posture to the use state of the horizontal position, and hold the use state by engaging the holding member, which is supported by the fixed member and rotatable, with the auxiliary seat cushion, while the upper end of the auxiliary seat cushion in the retracted state is held Since it is set to approximately the same level or lower as the seat surface of the vehicle seat, the retracted auxiliary seat cushion does not protrude at most from the seat seat surface of the vehicle, and in the case of getting on and off of a healthy person who does not need to use the passenger assistance seat It does not get in the way.
[0030]
And further provided a spring for biasing the stored state to the link mechanism to the use state direction and an auxiliary when the seat cushion is horizontal position, because they provided engaging means for the holding member engaged with the auxiliary seat cushion, Since the auxiliary seat cushion automatically expands to the use state and the use state is held by the holding member and becomes usable, no troublesome operation is required for use.
[0031]
The above-mentioned fixed side member is a base bracket, the auxiliary seat cushion is fixed to the cushion support bracket, the auxiliary seat cushion side of the upper link and the lower link is connected to the cushion support bracket, and the engaging means is provided on the cushion support bracket. A locking bracket having a long hole provided in the vicinity of the other end of the holding member, and a rod rotatably supported by the cushion support bracket and having the tip engaged with the long hole of the locking bracket. By configuring, since the whole is formed as one unit, it can be easily installed on any vehicle seat by simply attaching the base bracket to the side portion of the vehicle seat.
[0032]
Furthermore, by attaching a key lock to the cushion support bracket and inserting the key lock key into a key hole formed in the upper link or the lower link, the stored state can be maintained by a simple operation when necessary.
[0033]
Further, when the link mechanism is provided with a spring, by providing a storage auxiliary member that can contact around the upper end portion of the auxiliary seat cushion during the posture change from the storage state to the use state on the inner wall of the vehicle door, When the door is opened, it automatically expands to the use state, and it is folded into the retracted state as the door is closed, so that no manpower is required throughout. At this time, if the storage auxiliary member is a storage auxiliary belt extending downward from the armrest of the door, the pressing force to the upper end portion of the auxiliary seat cushion becomes close to the locus of the upper end portion due to the bending of the belt. Storage is smoother.
[Brief description of the drawings]
FIG. 1 is a rear view showing an embodiment of the present invention.
FIG. 2 is a perspective view showing a boarding / alighting assist seat.
FIG. 3 is a diagram showing an installation state of a storage auxiliary belt.
FIG. 4 is a diagram illustrating a movement locus of an auxiliary seat cushion from a storage state to a use state.
FIG. 5 is a diagram illustrating a use state.
FIG. 6 is a diagram showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Driver's seat 3 Driver's seat door 4 Armrest 5 Storage auxiliary belt 6 Mounting bracket 10 Boarding / alighting assist seat 11 Auxiliary seat cushion 12 Cushion support bracket 13 Auxiliary seat cushion mounting surface 14 Upper link mounting wall 15 Lower link mounting walls 16a, 16b Base bracket 17 Mounting surface 18 Link mounting wall 19 Hole 20a, 20b Link mechanism 22 Upper link 24 Lower link 26 Key hole 30 Load support rod 31 Base 32 Offset part 32a Rising part 33 Rod support bracket 34 Locking bracket 35 Slot 36 Bracket 37 Link Rod 38 Hook 39 Locking piece 40 Coil spring 41, 42 Pin 45 Key lock 46 Key

Claims (6)

It is connected to a fixed side member provided on the side of the vehicle seat by a link mechanism having an upper link and a lower link, and the posture can be changed from the vertical position along the side of the seat upward to the horizontal position. An auxiliary seat cushion,
A holding member that is rotatably supported at one end by the fixed side member and that can engage the auxiliary seat cushion in the horizontal position at the other end;
A state in which the auxiliary seat cushion is in the vertical position is a retracted state, a state in which the auxiliary seat cushion is in the horizontal position is a use state,
Wherein Ri to the upper end of the auxiliary seat cushion in a retracted state is set lower than the seat surface substantially the same level of sheet of the vehicle tare,
The link mechanism is provided with a spring for urging from the retracted state toward the use state,
The auxiliary when the seat cushion is horizontal position, getting on and off the auxiliary vehicle seat, characterized in Rukoto that having a engagement means for the other end of the holding member engaged auxiliary seat cushion and engaged. The fixed side member is a base bracket;
The auxiliary seat cushion is fixed to a cushion support bracket;
The auxiliary seat cushion side of the upper link and the lower link is connected to a cushion support bracket,
The engaging means includes a locking piece provided in the cushion support bracket, a locking bracket having a long hole provided in the vicinity of the other end of the holding member, and a cushion support bracket rotatably supported by the tip. 2. A vehicle entry / exit assisting seat according to claim 1, comprising a connecting member engaged with an elongated hole of the stop bracket . 2. A key lock is attached to the cushion support bracket, and the stored state is maintained by inserting a key lock key into a key hole formed in a corresponding upper link or lower link. Or the boarding / alighting assistance sheet | seat of 2 description. 4. The storage auxiliary member capable of contacting the upper end portion of the auxiliary seat cushion during the posture change from the storage state to the use state is provided on the inner wall of the door of the vehicle. passenger auxiliary sheet for a vehicle according to one. It is connected to a fixed side member provided on the side of the vehicle seat by a link mechanism having an upper link and a lower link, and the posture can be changed from the vertical position along the side of the seat upward to the horizontal position. An auxiliary seat cushion,
A holding member that is rotatably supported at one end by the fixed side member and that can engage the auxiliary seat cushion in the horizontal position at the other end;
A state in which the auxiliary seat cushion is in the vertical position is a retracted state, a state in which the auxiliary seat cushion is in the horizontal position is a use state,
The upper end of the auxiliary seat cushion in the retracted state is set to be substantially equal to or lower than the seat surface of the vehicle seat,
The contactable stored auxiliary member in the upper portion between the auxiliary seat cushion of the posture change from the storage state to the use state, the vehicle passenger auxiliary seat, characterized in that provided on the inner wall of the door of the vehicle. 6. The vehicle entry / exit assisting seat according to claim 4 , wherein the storage assisting member is a storage assisting belt extending downward from an armrest of the door.

Images