JP2004262326A - Lifter for care - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lifter for care used for riding on and off a wheelchair applicable to an objective vehicle irrespective of the size of the vehicle and the shape of an opening part, usable for general purposes, and having excellent space-saving property. <P>SOLUTION: This lifter for care comprises a pair of slide rails 2 and 2' fixed to a vehicle body floor surface 1a parallel with each other at specified intervals, front and rear sliders 3 and 3' slidably installed along the slide rails, upright guide rails 5 and 5' installed on the front and rear sliders in the vertical direction, upper and lower sliders 6 and 6' slidably installed along the upright guide rails, and a platform 9 rotatably pivoted at the tips of arms 8 and 8' fixed to the upper and lower sliders and lifted interlockingly with the sliding operation of the upper and lower sliders. The pair of upper and lower sliders 6 and 6' are connected to each other through a wire 11a passed between the bottom parts of the front and rear sliders 3 and 3' and the vehicle body floor surface 1a, and the pair of upper and lower sliders are lifted by a drive means 12 in association with each other. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a lift for nursing care, which is mounted inside an opening of a vehicle and is used for getting on and off a wheelchair or the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a number of lifting devices such as wheelchairs mounted inside an opening of a vehicle have been proposed. For example, a gate-type frame is arranged inside an opening of a vehicle, and a left and right slide connected by a wire and a platform on which a wheelchair is mounted move up and down on both side pillars to perform getting on and off of a wheelchair and the like (Patent Literature) In addition, an ascending / descending platform supported by a guardrail provided along a vehicle floor is drawn into a vehicle with a wheelchair mounted thereon (see Patent Document 2).
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-16148 [Patent Document 2]
JP-A-7-69121
[Problems to be solved by the invention]
Among the above-mentioned prior arts, the one disclosed in Patent Document 1 has a wire that connects the left and right sliders arranged above the elevator, so that the frame needs to be formed in a gate shape, so that the weight increases, Also, it is not suitable for installation in vehicles where there is no room in the vertical direction.
[0005]
Further, since the link mechanism is used for pulling out and storing the platform, it is necessary to change the design of the arm length and the like depending on the shape of the opening of the vehicle, and the versatility is poor.
[0006]
Further, since the structure disclosed in Patent Literature 2 has a structure in which the upright guide rail is pulled into the interior of the vehicle, the interior space is always occupied by a platform or the like, so that the vehicle can be used in a vehicle room during normal use. It was inconvenient.
[0007]
The present invention has been made in view of the above-mentioned various problems, and is applicable to various sizes of vehicles, shapes of openings, and the like, and is highly versatile, excellent in space saving, and a wheelchair. It is an object of the present invention to provide a lifter for nursing care to be used for getting on and off the vehicle.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a pair of slide rails in parallel at a predetermined interval and provides a front and rear slider slidable along each rail along each of the slide rails. A first arm portion for fixing an upright guide rail to each of the front and rear sliders, and providing an up and down slider in each of these upright guide rails so as to be slidable in the up and down direction, and extending in a direction along the slide rail on the up and down slider. And a second arm portion extending downward from the first arm portion, and a platform is rotatably supported on a shaft support portion at one end of the second arm portion. Wires passing through pulleys provided near the upright guide rails are suspended at the same height, and wires for suspending the upper and lower sliders are attached to the front and rear sliders. And the other end of the wire for suspending the other upper and lower slider is fixed to a support provided on the other front and rear slider, and the other upper and lower slider side pulley Is configured to be able to move up and down in the vertical direction by a driving means.
[0009]
The arm can be constituted by an arm (8) composed of, for example, an inclined arm (8a, 8a ') as a first arm and a vertical arm (8b, 8b') as a second arm. With this configuration, a wire for connecting and lowering the vertical slider can be provided on the vehicle floor side, and since there is no obstacle above the lifter, a lifter for nursing with good getting on and off can be realized. What you get.
[0010]
The drive means is constituted by a cylinder supported by the other front and rear slider, and the pulley is provided at a tip end of a piston rod of the cylinder, and is constituted by a care lifter. .
[0011]
Therefore, the area and weight occupied by the drive means for raising and lowering the platform can be reduced, and the entire care lifter can be made compact.
[0012]
The arm supports the platform such that the pivot portion of the second arm section secures a predetermined clearance from the tip of the slide rail when the front and rear slider is moved to the tip of the slide rail. And a lifter for nursing care.
[0013]
In the arm, for example, two arm portions (8a, 8a 'and 8b, 8b') facing the vehicle opening side of the upper and lower sliders (6, 6 ') are formed in a substantially "C" shape in side view. Can be configured. The shape of the arm is not limited as long as the pivot portion of the platform can secure a predetermined clearance (α ′) from the tip of the slide rail. For example, one arm is formed into an arc shape or a cloud shape. It is also possible to form by forming. When the lifter is mounted on the vehicle, the slide rail is fixed to the floor of the vehicle. In this case, the end of the vehicle (for example, the rear end of the rear bumper) is positioned within the clearance (α ′). , A highly versatile lifter that can be mounted on various types of vehicles can be realized.
[0014]
Further, when the pair of slide rails is fixed to the vehicle floor, the slide rail is substantially vertically extended with the shaft support portion as the front and rear sliders move in the vehicle interior direction along the slide rail. The platform which has been raised and rotated in the direction has a length capable of being stored inside the vehicle together with the arm, and is constituted by a nursing lifter.
[0015]
Therefore, by changing the length of the pair of slide rails (2, 2 ') according to the size of the vehicle to be mounted, the shape of the opening, and the like, it is possible to cope with various vehicles. In addition, by setting the length of the slide rails (2, 2 ') to be a minimum length that can accommodate the platform (9) that has been turned upright, the entire lifter can be configured to be small and lightweight.
[0016]
As described above, in this section, the reference numerals in the embodiment are expressed in parentheses corresponding to the constituent members of the present invention, but this is added for convenience in order to clarify the correspondence, and thereby, the configuration of the present invention Is not limited.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 shows a care lifter according to an embodiment of the present invention.
[0019]
Reference numeral 1 denotes a vehicle to which a care lifter is attached, and reference numeral 1a denotes a vehicle floor. A pair of slide rails 2, 2 'extending from an opening at the rear of the vehicle to the inside of the vehicle are fixed to the vehicle floor 1a in parallel at a predetermined distance (see FIG. 3). The front and rear sliders 3 and 3 'slidable back and forth along the slide rails 2 and 2' are attached to 2 '. The pair of slide rails 2 and 2 ′ are formed in a shape having a U-shaped cross section in which opposing surfaces are opened, and rollers 3 a rotatably supported by the front and rear sliders 3 and 3 ′. The front and rear sliders 3 and 3 ′ are configured to run back and forth within the range of the slide rails 2 and 2 ′ by running the slide rails 3 and 2 ′ in the slide rails 2 and 2 ′.
[0020]
Reference numeral 4 denotes a slider stay for connecting the front and rear sliders 3 and 3 '. Both ends of the slider stay are fastened to the angles 3f and 3f' welded to the inner surfaces of the front and rear sliders 3 and 3 'by bolts 3g and 3g'. It is mounted so as to be movable in the front-rear direction together with the front-rear sliders 3, 3 '. On the upper surface of the slider stay 4, a pair of upright guide rails 5 and 5 'are fastened by bolts 5d and 5d' at positions inside the front and rear sliders 3 and 3 ', respectively (see FIG. 11). ). A bridge plate 1b is fixed inside the pair of upright guide rails 5, 5 'so as to be mounted on the upper surface of the slider stay 4 (see FIG. 3). The rear half is formed into a gentle slope shape such that the inner end of the vehicle is in contact with the vehicle floor 1a (see FIG. 4).
[0021]
Reference numerals 6, 6 'denote upper and lower sliders slidably provided in the up and down direction along the upright guide rails 5, 5', and rollers 6c contacting the inner side surfaces 5c, 5c 'of the upright guide rails 5, 5'. , 6c 'and the U-shaped slider portions 6a, 6a' surrounding the upright guide rails 5, 5 'from the outer surfaces of the upright guide rails 5, 5'. The slider portions 6a, 6a 'and the roller support angles 6b, 6b' are fastened by bolts 6d, 6d ', so that the slider portions 6a, 6a' are assembled so as to surround the upright guide rails 5, 5 '. , 6c 'are configured to be slidable in the vertical direction while maintaining a state of being in contact with the inner side surfaces 5c, 5c' of the upright guide rails 5, 5 '.
[0022]
Arms 8, 8 'and auxiliary arms 7, 7' are fixed by welding to the rear side surfaces of the slider portions 6a, 6a 'of the pair of upper and lower sliders 6, 6', respectively. The arms 8, 8 'are inclined arm portions 8a, 8a' each having a tip portion inclined slightly below the horizontal position from the upper and lower sliders 6, 6 'toward the vehicle opening side, and both inclined arm portions 8a. , 8a 'are formed vertically arm portions 8b, 8b' extending vertically downward from the distal end portions, and are generally formed in a substantially "C" shape in side view.
[0023]
Reference numeral 9 denotes a platform on which a wheelchair or the like is placed. The platform 9 is attached to the lower ends of the vertical arms 8b and 8b 'via connecting shafts (shaft supports) 8c and 8c'. The platform 9 forms a frame by welding a pair of side frames 9c, 9c 'and 9d, 9d' to both ends of a cross frame 9a, 9a 'and 9b, 9b' having a rubber plate adhered to the bottom. Two flat plates 9e and 9f are mounted and fixed on a frame, and the side frames 9c, 9c 'and 9d and 9d' are axially mounted on connecting shafts 9g and 9g ', and the connecting shafts 9g and 9g'. Is formed so as to be foldable around the fulcrum. A step plate 10 is mounted on the cross frame 9b 'by connecting shafts 10a and 10a'.
[0024]
In a state where the slide rails 2 and 2 'are mounted on the vehicle floor as shown in FIG. 4, between the ends of the slide rails 2 and 2' on the vehicle opening side and the arm support portions 8c and 8c 'of the arm. Is configured to generate a predetermined clearance α ′. That is, the slide rails 2 and 2 'may be attached to the vehicle floor such that the rear end position of the vehicle is located within the clearance α'. At this time, a predetermined clearance α is generated between the rear end position of the vehicle and the shaft supports 8c, 8c '.
[0025]
Eye bolts 6e and 6f are fixed to the outer surfaces of the driving side sliders 6 of the pair of upper and lower sliders 6 and 6 'upward and downward by angles 6h and 6g, respectively. An eye bolt 6i is fastened and fixed to the outer surface of the slider 6 'by an angle 6j upward (see FIG. 10).
[0026]
The eyebolts 6f and 6i are provided at the upper ends of the pulleys 3b and 3b 'pivotally supported on the inner surfaces of the front and rear sliders 3 and 3' with angles 3d and 3d 'and the upright guide rail 5' on the driven side. A wire 11a passes along the slider stay 4 across the pulley 5a supported by the shaft 5b and outside the upright guide rails 5, 5 'and between the vehicle floor 1a and the bridge plate 1b. They are connected (see FIG. 11). At this time, the driven-side vertical slider 6 'is suspended by the wire 11a passing over the pulley 5a, and by adjusting the length of the wire 11a in advance, the driving-side vertical slider 6' is adjusted. The upper and lower sliders 6 'on the driven side can be moved up and down at the same height position as the upper and lower sliders 6 in conjunction with.
[0027]
A base plate 3c is welded to the upper end of the front and rear slider 3 on the drive side so as to be horizontal above the slide rail 2 on the drive side. On the base plate 3c, a hydraulic cylinder 12 as drive means and A hydraulic pump 13 for supplying hydraulic oil to the hydraulic cylinder 12 through a hydraulic circuit is mounted and fixed. A pulley 12b is rotatably supported at the upper end of a piston rod 12a protruding from the upper end of the hydraulic cylinder 12, and extends across the pulley 12b so that an eye bolt 6e provided on the upper and lower sliders 6 and the base plate 3c And an anchor bolt 14 fastened and fixed with an angle (supporting portion) 3e by a wire 11b. That is, the upper and lower sliders 6 are configured to be suspended by the wires 11b passing over the pulleys 12b. By adjusting the length of the wire 11b in advance so as to be positioned at a predetermined height, the vertical slider 6 moves up and down following the expansion and contraction of the piston lot 12a, and is driven in conjunction with this. The upper and lower sliders 6 ′ are configured to always be able to move up and down at the same height as the upper and lower sliders 6.
[0028]
Reference numerals 16 and 16 'denote ball screws (see FIG. 3), which are fixed on nuts 17 and 17' fixed to the inner surfaces of the front and rear sliders 3 and 3 'and on the upper surface of the inner side end of the slide rails 2 and 2'. The fixed bearings 15, 15 'support the slide rails 2, 2' in parallel. The nuts 17, 17 'are screwed with the ball screws 16, 16', and the bearings 15, 15 'are provided with output shafts of motors 18, 18' fixed on the slide rails 2, 2 '. Since the ball screws 16 and 16 'rotate in conjunction with the rotation of the motors 18 and 18', the front and rear sliders 3 and 3 'can be moved in the front and rear direction. ing. The slider stay 4 fixed to the front and rear sliders 3 and 3 ', the upright guide rails 5 and 5', and the bridge plate 1b also move back and forth in conjunction with the front and rear movement.
[0029]
Since the present invention is configured as described above, when the nursing care lifter of the present invention is attached to, for example, a rear luggage compartment in a vehicle, the pair of slide rails 2 and 2 'are adjusted so that the arm 8 is positioned on the vehicle opening side. Fix it to the vehicle floor with bolts. At this time, when the front and rear sliders 3, 3 'are positioned closest to the vehicle opening, the rear end of the vehicle is mounted so as to be located within the predetermined clearance α'.
[0030]
Next, loading of a wheelchair or the like into an automobile is performed according to the following procedure. FIG. 5 shows a state in which the care lifter is completely stored in the vehicle. At this time, the platform 9 inverts the step plate 10 about the connecting shafts 10a and 10a 'and folds the step plate 10 about the supporting shafts 9g and 9g', and then turns the supporting shafts 8c and 8c 'around the supporting shaft. It is moved and stored in a folded state in the arms 8, 8 '.
[0031]
From this state, when the motors 18 and 18 'are operated to rotate the ball screws 16 and 16' in order to pull the platform 9 out of the vehicle, the screw is rotated by the rotation of the ball screws 16 and 16 '. The front and rear sliders 3, 3 'with the fitted nuts 17, 17' fitted are moved toward the vehicle opening along the slide rails 2, 2 '. At this time, as shown in FIG. 6, the arms 8, 8 'and the platform 9, which move in conjunction with the sliding movement of the front and rear sliders 3, 3', do not interfere with the vehicle at the time of the lifting operation described below. Move to the position where the necessary clearance α (the distance from the rear end position of the vehicle to the vicinity of the shaft supports 8c and 8c ') is secured. At this time, it is preferable to take measures for automatically stopping the operation of the motors 18 and 18 'at the positions.
[0032]
Then, after the platform 9 stored in the arms 8, 8 'is folded and raised and rotated, the platforms 9c, 8c' and the connecting shafts 9g, 9g 'are manually developed on the supporting shafts (see FIG. 7, see FIG. 8), when the hydraulic pump 13 is operated to lower the oil pressure inside the cylinder 12, the piston lot 12a in the extended state is drawn into the cylinder 12, and the pulley supported by the upper end of the piston lot 12 is pulled. 12b is also lowered, so that the upper and lower sliders 6 suspended at one end from the other end of the wire 11b having one end connected to the anchor bolt 14 are lowered according to the lowering of the pulley 12b, and the upper and lower sliders 6 and the wire 11a are separated. The driven-side upper and lower sliders 6 ′ connected via the actuator also descend at the same height. Therefore, the platform 9 which is attached to the lower ends of the arms 8, 8 'welded to the upper and lower sliders 6, 6' via the support shafts 8c, 8c 'can be lowered to the ground GL (FIG. 2, 9). At this time, by taking measures to stop the platform 9 and the lower end of the arms 8 and 8 'at a position where a predetermined clearance β is secured with the ground GL, it is possible to prevent damage to the device due to the impact of the collision with the ground. It is preferable to aim at.
[0033]
In this state, the wheelchair can be placed on the platform 9 from the step board 10.
[0034]
Next, in order to carry the wheelchair into the vehicle, the platform 9 on which the wheelchair is mounted is raised to the position shown in FIG. This is contrary to the operation described above, in which the operation of the hydraulic pump 13 pressurizes the inside of the cylinder 12 and pushes up the piston rod 12 and the pulley 12b supported on the upper end thereof, thereby forming the upper and lower sliders suspended on the wire 11b. 6 and the driven upper and lower sliders 6 'connected to the slider 6 via wires 11a are raised at the same height. At this time, means is provided for automatically stopping the ascending operation of the piston lot 12 when the upper surface of the flat plate 9e mounted and fixed on the platform 9 reaches the same height position as the plate surface of the bridge plate 1b. Is preferred.
[0035]
The wheelchair rides on the bridge board 1b by self-propelled into the vehicle after passing over the bridge plate 1b.
[0036]
Finally, the platform 9 is stored. First, the step plate 10 is turned around the connecting shafts 10a and 10a 'and the platform 9 is folded in two around the supporting shafts 9g and 9g' (see FIG. 7), and then the platform 9 is turned into the supporting shafts 8c and 8c. When the 'is turned upright on the support shaft, it is stored in a folded state in the left and right arms 8, 8' (see FIG. 6). Then, the motors 18 and 18 'are rotated in the reverse direction, and the ball screws 16 and 16' are rotated in the reverse direction when the platform 9 is pulled out. And slide it in the car direction. At this time, when the arms 8, 8 'and the platform 9 which has been turned upright in the vertical direction are completely stored inside the vehicle and moved to a position where the tailgate can be closed (see FIG. 5), the automatic stop is performed. It is preferable to take measures. The loading of the wheelchair into the vehicle is completed by the operation according to the above procedure.
[0037]
As described above, according to the present invention, the other upper and lower sliders 6 'are configured to always move up and down at the same height position in conjunction with the raising and lowering of the upper and lower sliders 6 on one side. The pump 13 and the cylinder 12 need only be mounted on one side.
[0038]
The left and right upper and lower sliders 6 and 6 'are connected by a wire 11a passing through the vehicle floor surface 1a side. Since there is no obstacle at the top of the device, it is excellent for mounting on a vehicle where there is no room in the top and bottom directions. Since it is very compact and lightweight as a whole, it is suitable for mounting on a small car.
[0039]
When the care lifter according to the present invention is mounted on the target vehicle, the pivot portion of the platform 9 does not interfere with the vehicle when the front and rear sliders 3, 3 'are moved to the vehicle opening side. By adjusting the fixed positions of the slide rails 2 and 2 'on the vehicle floor 1a to a position at which the clearance α is secured, various types of vehicles can be handled. That is, when mounting, the vehicle may be mounted on the vehicle such that the rear end portion (or the vehicle side end portion) is located within the predetermined clearance α ′. Therefore, it is highly versatile and does not require any design change according to the target vehicle.
[0040]
The length of the slide rails 2, 2 'is adjusted so that the platform 9, which has been turned upright by the arms 8, 8' and the pivots, is stored in the vehicle and can be closed to a position where the tailgate can be closed. The rail length can be significantly reduced as compared with the conventional type in which the platform with the wheelchair mounted thereon is pulled into the interior of the vehicle, as long as the rail can be extended.
[0041]
That is, according to the present invention, it is possible to realize a nursing lifter that is compact and lightweight as a whole, and is excellent in space saving and versatility.
[0042]
【The invention's effect】
Since the present invention is configured as described above, it can be mounted regardless of the size of the vehicle to be mounted, the shape of the opening, and the like. This makes it possible to realize a highly versatile care lifter that can be easily worn.
[0043]
In addition, since there is no obstacle at the top of the device, the device is excellent in getting on and off, and can be used for getting on and off of elderly people with weak legs and for carrying in and out luggage with a high top.
[0044]
Further, according to the present invention, it is possible to realize a nursing lifter that is compact and lightweight as a whole and is excellent in space saving.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a care lifter according to the present invention.
FIG. 2 is a front view of the embodiment of the care lifter according to the present invention, showing a state where the platform is at a lowered position.
FIG. 3 is an embodiment of the nursing lifter according to the present invention, and is a plan view showing a state where a platform is expanded.
FIG. 4 is an embodiment of the care lifter according to the present invention, which is a side view showing a state where a platform is expanded.
FIG. 5 is a side view showing a state in which the care lifter according to the present invention is stored in the vehicle.
FIG. 6 is a side view showing a state where the platform is pulled out of the vehicle.
FIG. 7 is a side view showing a state in which the platform is being deployed.
FIG. 8 is a side view showing a state in which the platform is being deployed.
FIG. 9 is a side view showing a state where the platform is at a lowered position.
FIG. 10 is an enlarged side view showing a connection state of wires at upper and lower slider portions.
FIG. 11 is an enlarged sectional view showing a fastening portion between the slider stay and the front and rear sliders.
[Explanation of symbols]
1 vehicle 2 slide rail 3 front and rear slider (drive side)
3 'front and rear slider (driven side)
3a Rollers 3b, 5a, 12b Pulley 4 Slider stay 5 Upright guide rail 6 Vertical sliders 6e, 6f, 6i Eye bolt 8 Arm 9 Platform 11a, 11b Wire 12 Piston cylinder 12a Piston lot 13 Hydraulic pump 14 Anchor bolt 16 Ball screw 18 Motor α Clearance between arm and vehicle opening α 'Clearance between arm and slide rail tip β Clearance between arm and ground

Claims (4)

A pair of slide rails are provided in parallel with a predetermined interval and a front and rear slider slidable in conjunction with each slide rail is provided on each of the slide rails,
Upright guide rails are fixed to each of the front and rear sliders, and upper and lower sliders are provided on each of the upright guide rails so as to be vertically slidable,
An arm comprising a first arm portion extending in a direction along the slide rail and a second arm portion extending downward from the first arm portion is fixed to the upper and lower sliders, and an axis at one end of the second arm portion. The platform is rotatably supported on the support,
The upper and lower sliders are suspended at the same height by wires passing through pulleys provided in the vicinity of the upright guide rails, and the wires for suspending the one upper and lower sliders are passed through pulleys provided on the front and rear sliders, and Fixed to the top and bottom sliders,
The other end of the wire for suspending the other upper and lower slider is fixed to a supporting portion provided on the other of the front and rear sliders, and the pulley on the other upper and lower slider side can be moved up and down by driving means. A lifter for nursing care. 2. The nursing lifter according to claim 1, wherein said driving means comprises a cylinder supported by said other front and rear slider, and said pulley is provided at a tip of a piston rod of said cylinder. The arm supports the platform such that the pivot portion of the second arm section secures a predetermined clearance from the tip of the slide rail when the front and rear slider is moved to the tip of the slide rail. The care lifter according to claim 1 or 2, wherein When the pair of slide rails is fixed to the vehicle floor,
The slide rail is configured to store a platform, which is raised and rotated substantially vertically in the vehicle along the slide rail along the inside of the vehicle along the slide rail, together with the arm, inside the vehicle. The care lifter according to any one of claims 1 to 3, wherein the lifter has a possible length.

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