JP3681613B2 - Rotating sheet for barrier free placed on passenger car seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a barrier-free article used for passenger seats (rear and front seats) of a passenger car, and more particularly to a rotary seat dedicated to passenger cars that is convenient for getting on and off an elderly person.
[0002]
[Prior art]
Special consideration has been given to those who have recently lost their functions to some or all of their bodies, such as the elderly and persons with disabilities, and those who cannot act the same as healthy people (healthy people), such as children. It became so.
[0003]
In other words, it is essential for a healthy society that elderly people and persons with disabilities become independent and actively participate in society. Therefore, it is difficult to grasp the state of handy correctly and use equipment and tools. (Barrier) is eliminated, that is, the barrier free is closed up.
[0004]
One of the barrier free is known to compensate for the reduced ability because the physical function decreases as the age increases. For example, the barrier free in a passenger car is considered as follows.
[0005]
For example, getting on and off a car is a work that supports the load on the lower limbs and moves the height of the center of gravity of the body, so the function of the nervous system that controls posture and the lower limb muscle strength (muscle atrophy due to aging) This makes it difficult to get on and off.
[0006]
Therefore, regarding the muscle load on the lower limbs when standing up from the seat, it is said that older people are more burdened on the lower limbs than younger people, but if the handrail is used, the burden on the lower limbs will be reduced and the muscle load will be significantly reduced. ing.
[0007]
In addition to the barrier free for getting on and off the vehicle, the following proposal has been made.
[0008]
In other words, since the rotation of the body when getting in and out of the car is a burden of the lower limb muscle strength, a seat cushion for an automobile seat is provided with an internal rotation means for easily rotating the body ( JP-A-10-146239).
[0009]
As shown in FIG. 5, the proposed seat cushion 50 for an automobile seat includes a plate-like fixing portion 51 and a substantially disk-like rotating portion 52 arranged to be rotatable with respect to the fixing portion 51 on the upper surface of the fixing portion 51. The rotating portion 52 is formed of a cushion portion 54 that is provided on a rotating plate 53 and is covered with an outer skin.
[0010]
In this rotary plate 53, rotary plate side ribs 55, 55,... Are formed concentrically and multiply upward over the entire circumference, and a bearing portion 56 protruding downward is formed at the center. A through hole is formed in the center of the bearing portion 56, and a rotating shaft 57 is inserted into the through hole.
[0011]
On the other hand, the fixed portion 51 is constituted by a fixed plate 58 that is wider and larger than the rotating plate 53, and an outer peripheral portion other than the rotating plate 53 is located on the upper surface of the fixed plate 58. The cushion layer 59 is formed to surround the bank.
[0012]
A fixed plate side rib 60 is formed on the surface of the fixed plate 58 where the rotating plate 53 is located, and the upper end of the fixed plate side rib 60 has a semicircular cross section. A groove is formed, and a large number of bearing balls 61 are accommodated in the groove.
[0013]
Therefore, the rotating plate 53 is supported by these bearing balls 61 to facilitate its rotation.
[0014]
The above-described seat cushion 50 for an automobile seat is used by being mounted on an automobile seat (seat surface). Both the rotating plate 53 and the fixed plate 58 are provided with concentric multiple ribs 55 and 60. Therefore, it is easy to bend and deforms freely according to the human body. Further, since the rotation plate side rib 55 is disposed immediately above the bearing ball 61, the bearing ball 61 is pressed by the human body and is difficult to rotate. In other words, the cushion 50 can be freely rotated and the direction of the body can be changed easily, which is convenient for getting on and off a person with a handicap.
[0015]
[Problems to be solved by the invention]
However, since the proposed cushion 50 can be used not only for car seats but also for all kinds of chairs such as seat chairs, office chairs, pipe chairs, etc., there are the following problems when used for passenger car seats.
[0016]
In other words, as described above, getting on and off the car is an operation of supporting the load with the lower limbs and moving the height of the center of gravity of the body horizontally, and is not simply sitting or standing on a chair. When the nervous system function of the arm decreases or the muscle strength of the lower limbs decreases, the getting on and off operation is performed by sliding on the seat (seat surface) by the lower surface of the pelvic part of the body. There was a problem of not sitting on the cushion 50.
Further, the bank-like cushion layer 59 provides rotational resistance of the body.
[0017]
Therefore, the present invention mainly aims to solve such a problem. In addition, the present invention provides a combined support of the support of the pelvic part of the body and the support of the lumbar part and the thoracic part by the backrest, and a preferable rotational sheet. It is a secondary purpose to provide.
[0018]
[Means for Solving the Problems]
In order to achieve such an object, the present invention provides: 1) a plate-like base member placed on an existing seat for passengers of a passenger car, and a cushion member placed rotatably on the base member; The base member has a substantially tongue-like shape in plan view, and the seat member has a seat on the passenger seat of the passenger car. It is detachably fixed in the vicinity of the boundary between the backrest and the backrest, prevents the rotation sheet from being pushed by passengers getting on and off, and the cushion member is fixed to the mounting disk and the mounting disk. In addition, after sitting on the base member facing the door and rotating the body, the rotation was stopped by the seated weight to prevent passengers' anxiety and car sickness. Barrier free to be placed on passenger car seats Rotating - Located DOO, and 2) the placing in the vehicle seat according detent to claim 1 in which the rearward detent barrier-free - rotating sheet - it is an bets the gist.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail with reference to embodiments shown in the accompanying drawings.
[0020]
1 is an overall longitudinal sectional view of an embodiment of the present invention, FIG. 2 is a fragmentary view of FIG. 1, FIG. 3 is another fragmentary view of FIG. 1, and FIG. It is.
[0021]
The rotary seat according to the embodiment of the present invention is detachably mounted on an existing passenger seat (rear and / or front seat) of a passenger car (automobile) as a barrier free article for the elderly. The diameter is slightly smaller than the depth of the seat or the size of one side of the square, and it is said to be a cushion or stool.
[0022]
First, an outline of the present embodiment will be described.
In FIG. 1, the rotary sheet 1 includes a plate-like base portion (base member) 2, a cushion portion (cushion member) 3 that is rotatably mounted on the base portion 2, and The base portion 2 is detachably fixed in the vicinity of the boundary portion between the seat surface 4a and the backrest 4b in the passenger seat (not driver-seat) 4 of the passenger car, and the cushion portion 3 Although it is rotatable with respect to the base part 2, if necessary, the base part 2 is prevented from rotating after being seated.
[0023]
Therefore, when the passenger gets on and off, for example, sits sideways (door direction) on the rotation sheet 1 and then turns his body 90 degrees to bend and put it in the car and extend, Since the base portion 2 of the rotary sheet 1 is fixed to the seat 4, the raised rotary sheet 1 is not displaced.
[0024]
Therefore, while being able to sit on the rotary sheet 1, the passenger can easily and smoothly change his / her body orientation by himself or his / her assistant within a range of 90 °. In particular, a single operation is performed without redoing the seating in a narrow car.
[0025]
Moreover, since the cushion part 3 is stopped by the base part 2 after sitting, it gives a passenger a sense of security.
[0026]
Next, each part of the rotary sheet 1 will be described in detail.
1 and 2, FIG. 2 (A) is a plan view, and FIG. 2 (B) is a side view as viewed from the mounting side. The tongue piece is made of a synthetic resin (PP) and has a plate shape with a thickness of about 20 mm. In particular, the tongue piece is blown and formed into a hollow thin plate shape. Therefore, the rotary sheet 1 itself is inexpensive and light weighted, and the rigidity is obtained, and handling of a set or the like is facilitated.
[0027]
The base portion 2 includes a disk-shaped pedestal portion 5 that supports the cushion portion 3, a flange portion 6 that extends to the outer periphery of the pedestal portion 5, and the base of the tongue piece via the flange portion 6. A belt-like mounting rising portion 7 having a flat surface provided at a corresponding portion is integrally formed.
[0028]
The outer diameter of the disk-shaped pedestal portion 5 is about 350 mmφ, which is smaller than the outer diameter of the cushion portion 3, and the thickness thereof is about 20 mm. Accordingly, the base portion 2 and the cushion portion 3 have substantially the same outer shape, and there is no portion that resists rotational sliding, so that unnecessary space is not taken up.
[0029]
The outer diameter of the flange portion 6 is about 400 mmφ, which is substantially the same as the outer diameter of the cushion portion 3, and the thickness thereof is slightly smaller than the thickness of the pedestal portion 5.
[0030]
The belt-like rising portion 7 has a height of about 45 mm and a width of 400 mm and is inclined slightly rearward along the backrest 4b, so that the rotating sheet 1 does not enter the boundary between the seat surface 4a and the backrest 4b. It has become.
[0031]
Then, a stopper piece 8 which will be described later provided on the cushion part 3 rotates on the upper surface of the pedestal part 5. In order to prevent the rotation, a concave part 9 in which the outer peripheral edge of the pedestal part 5 is cut out is provided. 8 is engaged by seating weight or resin elasticity.
[0032]
The recesses 9 are provided at 90 ° intervals at the front portion of the pedestal portion 5 and at the left and right portions. Therefore, the passenger can rotate in the range of 90 ° from the left or right side. Of course, it is more preferable to provide a rotation stopper that is outside these rotation ranges, that is, a backward rotation.
[0033]
Further, a boss portion 10 is provided at the center portion of the pedestal portion 5 so that the upper and lower surfaces thereof are compression welded and the upper surface is flush and the bolt head receiving space is formed on the lower surface side. A through hole 12 in which the shaft bolt 11 is loosely fitted is provided.
[0034]
Further, a half-moon shaped finger insertion portion 13 is provided on the upper surface of the outer periphery of the flange portion 6 and at the portion where the recess 9 is located. Therefore, a finger is put into the finger insertion portion 13 and the holding piece 22 of the stopper piece 8 is held and easily lifted.
[0035]
Mounting recesses 15, 15 for attaching a rotary sheet fixing member 14, which will be described later, are provided on both sides of the lower surface from the belt-like rising portion 7 to the flange portion 6. Two nuts 16 are inserted into the recesses 15 respectively.
[0036]
2, 17, 17... Are triangular welded portions formed by compressing the upper and lower surfaces, which are formed at four positions of the pedestal portion 5, and these give rigidity to the seating weight.
[0037]
Next, the cushion part 3 will be described.
1A and 3B, FIG. 3A is a plan view of the mounting disk 18 and FIG. 3B is a side view from the stopper piece 8 side, but the cushion portion 3 includes the mounting disk 18 and the mounting circle. It is composed of a urethane foam (cushion material) 19 having a thickness of about 30 mm, which is fixed to the plate 18 and wrapped with an outer skin, and the mounting disc 18 is an injection molded product made of synthetic resin (PP) and has an outer diameter. The thickness is about 390 mmφ and the wall thickness is about 3.5 mm. Therefore, the rotary sheet 1 is mounted slightly raised on the seat surface 4a.
[0038]
The outer periphery of the mounting disk 18 is bent and reinforced with a flap of a slight length, and one substantially arc-shaped stopper piece 8 is integrally formed on the lower surface of the mounting disk 18.
[0039]
That is, the stopper piece 8 is sized to fit into a recess 9 provided on the outer peripheral edge of the pedestal portion 5, and has a width of about 4 mm, an arc length of about 30 mm, and a height of about 3 to 5 mm.
[0040]
In order to fit or remove the stopper piece 8 from or into the recess 9, cuts 21 are provided on both sides of the stopper piece 8, and a half-moon-like gripping piece 22 in plan view is provided at the tip between the cuts 21. It is integrally molded and protruded.
[0041]
A through hole 23 for loosely fitting the pivot shaft bolt 11 is also provided at the center of the mounting disk 18.
[0042]
As shown in FIG. 1, the pivot shaft bolt 11 is inserted into the through hole 23, the through hole 12 of the pedestal portion 5, and the through hole of the needle bearing retainer 20 (see FIG. 1). By inserting from the lower surface side, projecting onto the mounting disk 18 and tightening the nut, they are integrated, and the mounting disk 18 is good via the needle bearing placed on the upper surface of the pedestal 5. To rotate.
[0043]
A urethane foam 19 wrapped with a skin is fixed on the mounting disk 18 with an adhesive.
[0044]
Next, the rotary sheet fixing member 14 will be described.
1 and 4, FIG. 4A is a plan view, FIG. 4B is a side view, FIG. 4C is a side view of FIG. Is a fixing member with an eggplant ring (key hook with a closing port) 24, and is an injection-molded product made of a synthetic resin (PE) having a long plate shape (width of about 20 mm, length of about 140 mm, thickness of about 10 mm), The mounting recess 15 of the pedestal 5 is screwed onto the nut 16 of the mounting recess 15 with a screw (not shown).
[0045]
That is, the fixing member 14 includes an eggplant ring 24 and a fixing base portion 25, and the eggplant ring 24 is engaged with an existing metal bar (not shown) for fixing, for example, an infant seat. After locking, the plate spring (resin elastic spring) 26 is closed.
[0046]
Therefore, when the rotary sheet 1 is fixed by the pair of fixing members 14 and 14 using the existing members of the seat 4, the rotary sheet 1 is displaced by the pressing force on the lower surface side of the user's pelvis. Without removing the rotary sheet 1, the leaf spring 26 of the eggplant ring 24 can be easily removed by removing it.
[0047]
In addition to the fixing member 14, a fastener may be used.
[0048]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, passengers, such as an elderly person, can get on and off easily and reliably, and assistance of a caregiver can be reduced.
[0049]
In particular, unlike the so-called passenger seat rotation seat, in which the seat itself rotates, it is much cheaper for the elderly, etc., while being the same function, and is not limited to the existing seats regardless of the type of vehicle. Can be used.
[0050]
In addition, since the rotating sheet is fixed in the vicinity of the boundary between the seating surface and the backrest, it is possible to make it convenient for the combined support of the seating.
[Brief description of the drawings]
FIG. 1 is an overall longitudinal sectional view of an embodiment of the present invention.
FIG. 2 is a main part view of FIG. 1;
FIG. 3 is another main part view of FIG. 1;
FIG. 4 is still another main part view of FIG. 1;
FIG. 5 is a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rotation sheet, 2 ... Base part, 3 ... Cushion part, 4 ... Seat, 4a ... Seat surface, 4b ... Backrest

Claims (2)

A rotating seat constructed from a plate-like base member placed on an existing seat for passengers of a passenger car and a cushion member placed rotatably on the base member. The base member has a generally tongue-like shape in plan view, and is fixed by the fixing member so as to be removable in the vicinity of the boundary between the seat surface and the backrest of the passenger seat of the passenger car. The rotation sheet is prevented from being pushed by getting on and off by a passenger, and the cushion member is composed of an attachment disk and a cushion material fixed to the attachment disk, and the base For the barrier free to be placed on the passenger car seat, which is seated in the door direction and the body is rotated, and then the rotation is stopped by the seated weight to prevent passengers' anxiety and car sickness. Rotating sheet. The rotation sheet for a barrier free placed on a passenger car seat according to claim 1, wherein the rotation stopper is a rearward rotation stopper .

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