JP2010058891A - Step resolving machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a step resolving machine which is compactly storable in an unused time, and particularly suitably installable in a personal house. <P>SOLUTION: This step resolving machine has a lifting device 3 having a lifting base 32 into and from which a lifting object such as a wheelchair enters and leaves, and a driving means 45 for lifting the lifting base. The lifting device is arranged so that an attitude is freely changed to a horizontal use attitude A for placing the lifting object on the lifting base and an upward storage attitude. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a level difference canceling machine that is installed to allow a wheelchair to pass through a level difference portion that exists at, for example, a front door of a residence.

  Wheelchairs are widely used as tools used by people with disabilities in the lower limbs to move. In order to enable such a wheelchair to move freely, it is necessary to be able to get over steps existing at the entrances and passages of buildings.

  Therefore, it is often possible to get over a low step by providing a slope, but a relatively large step such as a rise of a private house entrance is large if a slope is provided. Area is required. For this reason, an elevator (lifter) type step eliminating machine that requires a small installation area is used.

This kind of level difference canceling machine has been proposed that includes a lifting platform on which a wheelchair enters and a pantograph type lifting drive means for lifting the lifting platform (see, for example, Patent Document 1).
JP 2005-119765 A

  In particular, in a level difference eliminating machine installed in a private house, it is necessary to consider that the installation space is small and that a normal person passes through the space. The level difference eliminating machine provided with the pantograph type lifting drive means needs to have a structure that does not obstruct the passage of healthy persons who share the installation space.

  Moreover, when installing the level difference canceller, it is conceivable that a recess is formed in the floor surface, and the step lift is accommodated in the concave portion so that the elevator platform and the floor surface are flush with each other. However, there is a drawback that the construction for forming the concave portion on the floor is required, and the cost is increased.

  The present invention is to solve the problems in the conventional level difference eliminating machine as described above. It is an object of the present invention to provide a level difference canceling machine that can be stored compactly when not in use and is suitable for installing in a private house or the like at a low cost.

  In order to achieve the above object, the present invention provides a step-resolving machine comprising a lifting device having a lifting platform through which an object to be lifted such as a wheelchair enters and leaves, and a driving means for lifting the lifting table. The apparatus is provided in such a manner that its posture can be freely changed between a horizontal usage posture in which the object to be lifted is placed on the lifting platform and an upward storage posture.

  And when not using a level | step difference resolver, since a raising / lowering apparatus can be made into the upward storing attitude | position, it becomes compact and does not become obstructive at the time of the walk which does not use a wheelchair.

  And when using a level | step difference resolver, the attitude | position change of the raising / lowering apparatus in a storage attitude | position to a horizontal use attitude | position is carried out. And the raising / lowering stand is raised / lowered by the action | operation of a drive means.

  In the level difference canceller, one end of the lifting device is rotatably provided on a fixed frame body to be installed, and the lifting drive device is stored in the fixed frame body in the storage posture.

  In the level difference canceller, the driving means comprises a hydraulic cylinder, the base of which is rotatably connected to the base, and the rod of the hydraulic cylinder is disposed between the base and the lift base. Is connected to the pantograph mechanism provided in FIG.

  Since the level difference eliminating machine of the present invention can be stored compactly when the lifting device is not in use, it is possible to effectively use the installation space. Therefore, for example, the level difference eliminating machine can be used in a private house where the installation space is limited. Even if it is installed at the entrance, the leveling machine will hardly get in the way.

  In addition, it is not necessary to construct a recess for storing the level difference eliminating machine on the floor, so that the cost can be reduced.

  Hereinafter, a level difference canceling machine according to an embodiment of the present invention will be described with reference to the drawings.

  FIGS. 1-10 shows the level | step difference resolver of this Embodiment. 1 to 4, the level difference canceling machine 1 is installed to eliminate a level difference (a level difference formed from the lower floor surface 8 and the upper floor surface 9) 5 of the uphill of the entrance. 2 and a lifting device 3 that lifts and lowers a wheelchair 7 as an object to be lifted.

  The storage frame 2 includes a pair of vertical struts 20 and 20 erected so as to contact or approach the side wall 6, and an upper frame 21 that connects the upper ends of both the vertical struts 20 and 20. As shown in FIGS. 5 to 7, the vertical struts 20 and 20 have a C-shaped cross section, and upper and lower openings 20 a and 20 a are formed on inner surfaces facing each other. The lower ends of both vertical struts 20 and 20 are fixed to the lower floor surface 8, and one vertical strut 20 approaches or contacts the step 5 surface.

  The lifting device 3 includes a base 31 placed on the lower floor surface 8, a lifting platform 32 on which the wheelchair 7 is placed, and a pantograph mechanism 33 as a lifting mechanism that supports the lifting platform 32. ing.

  The base 31 includes a frame body 31a having a rectangular shape in plan view. The lifting platform 32 is composed of a frame body 32a having a rectangular shape in plan view and a plate-like table 32b provided on the upper surface of the frame body 32a.

  As shown in FIGS. 6 and 7, the pantograph mechanism 33 is pivotally mounted at a predetermined position on the base 31 or the lift 32 so that one end 34 a, 35 a of each pair of pantograph links 34, 35 is pivoted. It has a fixed end.

  Further, rolling rollers 36a and 36b are pivotally attached to the other ends 34b and 35b of the pantograph links 34 and 35, respectively. The other ends 34b and 35b are movable ends where the rolling rollers 36a and 36b roll in guide grooves 37a and 37b provided in the width direction (wheelchair traveling direction) of the base 31 or the lifting platform 32, respectively. It has become.

  The centers of both links 34 and 35 in the length direction are supported by a fulcrum shaft 38 so as to be rotatable. The pantograph mechanism 33 is provided at two places on the left and right sides of the base 31 and the lifting platform 32 (both left and right with respect to the wheelchair traveling direction), and the inner pantograph links 35 and 35 are connected by a connecting shaft 39. Yes. As a result, the pantograph mechanism moves synchronously, and the lifting platform 32 moves up and down and maintains a horizontal posture.

  A plurality of connecting shafts 39 (two in the present embodiment) are provided in parallel to the one end 35 a side of the fulcrum shaft 38 of the pantograph links 35, 35.

  A cylinder coupling member 44 is fixed at the center in the longitudinal direction of the coupling shaft 39. The connecting member 44 includes a pair of link members 44a and 44a having two connecting shafts 39 inserted into one end. By using two connecting shafts 39, the strength of the pantograph mechanism 33 can be improved, and the connecting member 44 can be fixed at a predetermined angle without rotating.

  The other end sides of the link members 44 a and 44 a are inclined upward by a predetermined angle with respect to the pantograph link 35. The other ends of the link members 44a and 44a are rotatably connected to a connecting member 46 provided at the tip of a rod 45a of a hydraulic cylinder 45 as a driving means via a cylinder connecting shaft 47. Accordingly, the cylinder connecting shaft 47 is connected to the rod 45 a of the hydraulic cylinder 45 at a position higher than the pantograph connecting shaft 39.

  A base portion of the hydraulic cylinder 45 is connected to a frame body 31 a of the base 31 through a connecting shaft 48.

  The elevator 32 is configured to be movable up and down by the operation of the hydraulic cylinder 45. That is, when the rod 45a of the hydraulic cylinder 45 contracts, the pantograph links 34 and 35 rotate in the closing direction, and the table 32b of the lifting / lowering base 32 is in the lowest lowered position (lowering position) where it approaches or contacts the base 31. The lifting platform 32 is lowered.

  In the lowered position of the lifting platform 32, the hydraulic cylinder 45 is in an upward posture with the rod 45a slightly toward the tip. In other words, since the cylinder connecting shaft 47 is located higher than the pantograph connecting shaft 39, the rod 45a is extended so that the pantograph links 34 and 35 are rotated in the standing direction to raise the lifting platform 32. it can.

  Further, the upper portion of the hydraulic cylinder 45 projects upward from the upper surface of the base 31 at the lowered position of the lifting platform 32. For this reason, a convex portion 32 c for allowing the hydraulic cylinder 45 to escape is formed at the center of the table 32 b of the lifting platform 32.

  Note that the width of the convex portion 32 c (the width of the left and right with respect to the wheelchair traveling direction) is set to be smaller than the vehicle width of the wheelchair 7. Therefore, when the wheelchair 7 enters the table 32b, the convex part 32c does not become an obstacle. Moreover, since the wheel of the wheelchair 7 straddles the convex part 32c, it is also possible to use the convex part 32c as a wheel guide.

  Further, as shown in FIGS. 1 and 4, an inversion transfer plate 60 is rotatably provided on one side (step side) of the lifting platform 32. The reversing transfer plate 60 is composed of rotating pieces 60a and 60a on both sides provided so as to be rotatable about a fulcrum shaft, and a connecting piece 60b installed on the rotating pieces 60a and 60a on both sides. Become. The connecting piece 60b is positioned above the rotating pieces 60a and 60a when the reversing transfer plate 60 is reversed to the lifting platform 32 side, and when the connecting piece 60b is reversed to the upper floor surface 9 side, It is the structure which contacts the upper floor surface 9. In addition, the space | interval of the rotation pieces 60a and 60a of both sides is set larger than the vehicle width of a wheelchair.

  Further, an inversion slope 65 is provided on the side opposite to the step side of the lifting platform 32 (frame body 32a) so as to be rotatable about a fulcrum shaft 66. As shown in FIGS. 9 and 10, the reversing slope 65 has stays 67 and 67 fixed to both sides of a slope plate 68, respectively. The stays 67 and 67 are supported by the stays 69 and 69 fixed to the lifting platform 32 by a fulcrum shaft 66.

  The stays 67 and 67 are provided with slope fixing means 70 in which a spring is incorporated. In this slope fixing means 70, a fixing pin 63 that is inserted into and removed from a fixing pin hole 61 provided in the stays 67, 67 can be moved out and withdrawn by a knob 62 so that the reversing slope 65 can maintain an upward state. Yes.

  Accordingly, the reversing slope 65 can be freely changed in posture to a vehicle moving posture installed on the lower floor surface 8, a vehicle stopping posture that maintains the upward state, and a folding posture that is folded on the upper surface of the lifting platform 32.

  One end of the stay 40 is fixed to the base portion on the side wall 6 side of the base 31, and the other end of the stay 40 is rotatably supported by the lower portions of the vertical struts 20 and 20 via a fulcrum shaft 43. As a result, the lifting / lowering device 3 has a fulcrum so that the posture is changed between a horizontal usage posture A where the wheelchair 7 is placed on the lifting platform 32 in the lowered position and an upward storage posture B stored in the storage frame 2. The shaft 43 is configured to be rotatable about the fulcrum.

  A lower end of a link 50 is rotatably connected to the stay 40 via a support shaft 51. Further, a roller 53 having an outer peripheral groove is rotatably connected to the upper end of the link 50 via a support shaft 54. The outer circumferential groove of the roller 53 is fitted into the openings 20a and 20a of the vertical struts 20 and 20, and the roller 53 rolls on any edge of the outer circumferential groove.

  A connecting member 55 is connected to the support shaft 54, and the tip of the rod 56 a of the gas cylinder 56 built in the vertical struts 20, 20 is fixed to the connecting member 55. Therefore, the gas cylinder 56 can be operated as the lifting device 3 rotates.

  The hydraulic device 58 for operating the hydraulic cylinder 45 may be a manual pump type or an electric pump type. In the case of the manual hydraulic device 58, as shown in FIG. 1, for example, the vertical cylinder 20 can be provided at an appropriate position where it can be easily operated, and the hydraulic cylinder 45 can be operated by lever operation. In the case of the electric hydraulic device 58, it can be provided in a space formed between the elevating device 3 and the side wall 6, as indicated by a virtual line in FIG.

  The level difference canceling machine 1 according to the present embodiment has the above configuration, and next, a case where the level difference eliminating machine 1 is used will be described.

  First, when a person with a lower limb goes out on the wheelchair 7, the caregiver rotates the lifting device 3 in the storage posture B to the use posture A. That is, the elevating device 3 rotates downward about the fulcrum shaft 43, and the base 31 contacts the lower floor surface 8.

  During the rotation of the lifting device 3, the lifting device 3 and the gas cylinder 56 are connected via a link 50 that supports the roller 53. Descends while rolling on the opening edge. The gas cylinder 56 is compressed by the lowering of the roller 53. Since the compression force of the gas cylinder 56 becomes a rotational resistance with respect to the weight when the lifting device 3 rotates downward, the lifting device 3 can be smoothly rotated with a slight force by the gas cylinder 56. it can. The hydraulic cylinder 45 also rotates together with the lifting device 3.

  Next, when the hydraulic cylinder 58 is operated by operating the hydraulic device 58, the rod 45a extends, and the pantograph links 34 and 35 are rotated in the standing direction, so that the lifting platform 32 at the lowered position rises. .

  When the table 32b of the lifting platform 32 reaches a predetermined height (ascending position) equivalent to the upper floor surface 9, the operation of the hydraulic cylinder 45 is stopped and the table 32b is kept horizontal. Further, the reversing transfer plate 60 is reversed on the upper floor surface 9. Then, the wheelchair 7 on the upper floor surface 9 is caused to enter the lifting platform 32 through the reversing transfer plate 60. Further, the reversing slope 65 is changed in posture from the folding posture to the vehicle stopping posture.

  When the wheelchair 7 is placed on the lifting platform 32 (the reversing transfer plate 60 is reversed to the lifting platform 32 side), when the hydraulic device 58 is operated again and the hydraulic cylinder 45 is operated, In conjunction with the contraction of the rod 45a, the pantograph links 34 and 35 rotate in the opposite direction to the above, so that the lifting platform 32 in the raised position is lowered.

  When the elevator 32 reaches the lowered position, the wheelchair on the elevator 32 is moved to the lower floor surface 8. There is a slight step between the elevator platform 32 and the lower floor surface 8, but the reversing slope 65 of the vehicle stopping posture is changed to a vehicle moving posture, and the wheelchair is moved via the reversing slope 65. This step is eliminated.

  Further, the reversing slope 65 is changed to the folding posture, and the lifting device 3 at the lowered position is rotated upward to the storage posture B. At this time, the urging force in the extending direction of the gas cylinder 56 is used, and the roller 53 moves up while rolling the opening edge of the vertical column 20 as the lifting device 3 rotates.

  As a result, the lifting / lowering device 3 including the hydraulic cylinder 45 can be easily and smoothly rotated and stored with a slight force.

  On the contrary, when entering the room with the wheelchair 7, the lifting device 3 is rotated to the use posture A, the reversing slope 65 is changed to the vehicle moving posture, and the wheelchair 7 is placed on the lifting platform 32 in the lowered position. Transition. When the reversing transfer plate 60 is inverted to the upper surface of the lifting platform 32, the connecting piece 60b is higher than the upper surface of the lifting platform 32, so that the wheel of the wheelchair 7 is applied to the connecting piece 60b. By making contact, the wheelchair 7 can be stopped at a predetermined position. In this way, the reversing transfer plate 60 has the function of positioning the wheelchair 7 and the stopper.

  Furthermore, after raising the lifting platform 32, the wheelchair 7 is moved from the lifting platform 32 to the upper floor surface 9.

  After use, after the elevator 32 is lowered to the lowered position, the elevator 3 is again rotated to the storage posture B and stored.

  Since the level difference canceling machine 1 of the present embodiment grounds the base 31 to the lower floor surface 8 and the pantograph mechanism 33 is provided at two places on the left and right of the base 31 and the lift base 32, In this configuration, the weight of the user on the table 32 and the wheelchair 7 is received by the pantograph mechanisms 33 on both sides and the grounded base 31 as a whole. Further, when the lifting platform 32 is raised and lowered, the reversing slope 65 is in a vehicle-stopping posture, and thus has a function of preventing the wheelchair 7 from falling off and a stopper.

  As a result, the horizontal state of the lifting platform 32 can be reliably maintained, and the wheelchair 7 can be raised and lowered stably and safely.

  Further, when the step difference eliminating machine 1 is not used, the entire lifting device 3 side (the lifting device 3 and the hydraulic cylinder 45) can be stored in the storage posture B. Therefore, the wheelchair 7 is not used when the lifting device 3 is stored. Spaces can be used effectively without interfering with walking.

  The present invention is not limited to the above embodiment. For example, the object to be lifted / lowered is not limited to the wheelchair 7 but may be a cart or the like, and the level difference canceling machine can be installed at an arbitrary place to eliminate the level difference at that place.

  Further, the driving means is not limited to the hydraulic cylinder 45, and even a rack and pinion mechanism is an air bag type provided between the base 31 and the lifting platform 32. Also good.

  Further, a detachable slope may be used instead of the reversing slope 65. Since such a slope is detachable, when it is unnecessary, it can be stood on the side wall 6 appropriately so as not to get in the way.

It is a side view of the level difference cancellation machine concerning one embodiment of the present invention. It is a front view of the accommodation state of the level | step difference resolver. It is a front view of the use condition of the level difference canceller. It is a top view of the use condition of the level | step difference resolver. It is a principal part top view containing the partial cross section of the level | step difference canceller. It is a cross-sectional side view which shows the raising / lowering apparatus of the level | step difference resolver. It is sectional drawing which shows the principal part of the same level | step difference resolver. It is a top view including the partial cross section of the level | step difference resolver. The inversion-type slope of the same level | step difference resolver is shown, (a) is a top view of the principal part, (b) is a side view. The inversion type slope of the same level | step difference resolver is shown, (a) is an exploded side view, (b) is a side view which shows the vehicle stop attitude | position of an inversion type slope.

Explanation of symbols

1 Leveling machine 2 Storage frame (fixed frame)
3 Lifting device 5 Step 7 Wheelchair 8 Lower floor surface 9 Upper floor surface 31 Base 32 Lift platform 33 Pantograph mechanism 45 Hydraulic cylinder (drive means)
58 Hydraulic device A Usage posture B Storage posture

Claims (3)

In a leveling machine comprising a lifting device including a lifting platform through which an object to be lifted such as a wheelchair enters and leaves, and a driving means for lifting the lifting table,
The step lifter is provided with a step-resolving device, wherein the lift device is provided so as to be freely changeable between a horizontal use posture in which an object to be lifted is placed on a lift platform and an upward storage posture.   2. The level difference canceling machine according to claim 1, wherein one end of the lifting device is rotatably provided on a fixed frame body to be installed, and the lifting drive device is stored in the fixed frame body in the storage position. Step difference canceling machine.   2. The level difference canceling machine according to claim 1, wherein the driving means comprises a hydraulic cylinder, a base portion of the hydraulic cylinder is rotatably connected to the base, and a rod of the hydraulic cylinder is connected to the base. A level difference canceling machine connected to a pantograph mechanism provided between the elevator and the lifting platform.

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