JP2006232466A - Level difference dissolution lift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a level difference dissolution lift mainly installed on a portion with a level difference or high/low difference of a general residence, for example, an entrance difference of a door, a veranda and a dirt floor and safely lifting a person without requiring a large scale device. <P>SOLUTION: The level difference dissolution lift is constituted such that an elderly person and a handicapped person who difficultly perform mainly ascending/descending of the entrance difference of the door, the veranda and the dirt floor of the general residence but do not require a wheel chair are made as an object and it is miniaturized so as to be able to be carried for installing at a small installation space without paying attention to strength of an installation place. The lift is provided with a sensor part for always raising a riding base at activation after the lift is stopped on the midway of a lifting range of the device by emergency stopping and power failure, sensing the upper limit stop position and the lower limit stop position of the riding base and restricting the lifting range. The sensor part position for sensing the upper limit stop position can be optionally changed and the lifting range of the riding base can be optionally changed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention mainly relates to an apparatus for raising and lowering a person by installing it in a portion of a general house where there is a level difference or height difference, for example, at a front entrance, a marginal side, or between soils.

In general, as a step elimination lifting device, a guide rail is installed along a staircase or a slope of a step, a moving part composed of a rack and a pinion gear or a screw shaft is provided on the guide rail, and the moving part is arranged along the guide rail. There are things that can be moved up and down, but these are mainly based on the assumption that people are carried in wheelchairs, but not as much as in wheelchairs. Not only is the equipment itself large for use by the elderly and the disabled, but there is also a problem that installation space is large, and installation is difficult unless there are stairs or steps with a certain width.

Conventionally, many inventions of an inclined lift type have been provided as a step elimination lifting device, for example, those described below are known.
Japanese Laid-Open Patent Publication No. 2002-87735 discloses a step eliminating lift device in which the device is installed along a slope of a staircase or a step as a tilt lift, and a boarding board provided in the device moves up and down along the slope of the staircase or the step. Is described.

As described above, the step elimination lifting apparatus according to Japanese Patent Laid-Open No. 2002-87735 has a guide rail installed along a staircase or a slope of a step, and a moving portion (boarding board) configured by a rack and a pinion gear is provided on the guide rail. The rack and pinion gear are operated by driving means such as an electric motor, and the moving part is moved up and down along the slope of the stairs or steps.

As another document, Japanese Patent Application Laid-Open No. 2000-143200 discloses that the device is installed along an inclination of a staircase or a step as an inclined lift, and a boarding board provided in the device moves up and down along the inclination of the step or the step. A step-lifting lifting device is described.

In the above-described step elimination lifting apparatus according to Japanese Patent Laid-Open No. 2000-143200, a guide rail is installed along a staircase or a slope of a step, and the guide rail body screwed to the guide rail and screwed to the screw shaft. Is provided such that a moving part (boarding board) is slidably supported, the screw shaft is rotated by a motor with a reduction gear, and the moving part is moved up and down along a slope of a staircase or a step.

JP 2002-87735 A JP 2000-143200 A

Since the step difference lifting and lowering device according to Patent Document 1 and Patent Document 2 is mainly based on the assumption that a person is carried on a wheelchair, it is not enough to use a wheelchair. The device itself is not suitable for the elderly and disabled people who are difficult to go up and down, and the device itself is not only large, but it is also necessary to consider the strength of the installation place, weight etc. It is very heavy, and once installed, it becomes the same as a permanent structure, and there is a problem that the installation location cannot be easily moved.

In addition, there is a problem that installation space is large and it is difficult to install unless there are stairs or steps with a certain width, and elderly people and physical disabilities that are difficult to ascend and descend from the above-mentioned entrances, rims, dirt, etc. There is a problem that the installation place is limited for use by a person, and the installation and use in a general house are further limited.

Moreover, since the equipment mainly assumes multi-steps and steps, the equipment becomes large, expensive and expensive to install, and it is difficult to go up and down the entrance, rim, and dirt between the entrances mentioned above. However, there is a problem that there are too many unnecessary elements for the elderly and disabled people who do not need a wheelchair.

The present invention has been made in consideration of such problems, and it is difficult to ascend and descend the entrance, the edge, and the soil, but there are few elderly and disabled persons who do not need a wheelchair. Moreover, it is an object of the present invention to provide an inexpensive level difference lifting and lowering apparatus that can be installed without worrying about the strength of the installation place, is easy to operate, and does not require a large-scale apparatus such as a conventional tilt lift.

In order to solve the above-mentioned problems, the step elimination lifting apparatus according to the present invention employs means described in each claim.

In other words, the present invention is characterized in that the apparatus is provided with a stop switch for stopping the raising / lowering operation within the raising / lowering range, and after the apparatus is stopped by the stop switch during the raising / lowering operation, the riding section moves up at the next activation. .

In this means, there is no particular problem during the lifting operation of the riding section from the upper limit stop position to the lower limit stop position, or from the lower limit stop position to at least two stop positions determined by the upper limit stop position and the upper limit stop position. If the device is stopped in the middle of at least two stop positions (elevating range), such as when the stop switch is pressed or the power is turned off due to a power failure, etc., the next start is performed regardless of the height position of the riding section. Occasionally, the riding part moves up, and there is a safety advantage that there is no fear of the passenger's body being caught between the floor and the riding part.

According to a second aspect of the present invention, an upper limit stop of the riding section is provided in a step elimination lifting apparatus that regulates the lifting range by one of the components of the apparatus, a sensor section that senses the upper limit stop position and the lower limit stop position of the riding section. The position of the sensor unit that senses the position can be arbitrarily changed, and the raising / lowering range of the riding part can be arbitrarily changed.

In this means, because the position of the sensor for detecting the upper limit stop position of the riding section can be arbitrarily changed, the raising / lowering range of the riding section can be changed according to the required raising / lowering height depending on the situation of installing the apparatus, There is an advantage that the range of installation can be greatly increased without being limited to the place of use.

The step-lifting lifting device according to the present invention is different from a device mainly intended to be carried on a wheelchair in the past, for example, it is difficult to climb up and down the entrance, rim, soil, etc. Because it was focused only on the purpose of being used by the elderly and the physically disabled, it does not require any large-scale equipment, can be installed without regard to the size of the installation site, wall strength, etc., and it is lightweight It is easy to carry and can be inexpensive because it has a simple structure.

Furthermore, as claimed in claim 1, when the apparatus is stopped in the middle of at least two stop positions (elevation ranges), for example, by pressing a stop switch in an emergency or when the power is turned off due to a power failure or the like, the height of the riding section Regardless of the position, safety is one of the important performances of welfare equipment that eliminates the risk of the passenger's body being caught between the floor and the boarding part by raising the boarding part at the next start-up. effective.

Furthermore, in claim 2, in the step elimination lifting apparatus that regulates the lifting range by one of the constituent parts of the apparatus, the sensor part that senses the upper limit stop position and the lower limit stop position of the riding part, the position of the sensor part is arbitrarily set. It can be changed, and the lifting range of the riding section can be arbitrarily changed, so that the required lifting height varies depending on various situations such as rising up and down the entrance, the edge side, the soil, etc. Accordingly, since the raising / lowering range of the riding section can be changed, there is an effect that the range in which the boarding unit can be installed is very large without limiting the place of use.

Hereinafter, the best mode for carrying out the step difference lifting and lowering apparatus according to the present invention will be described with reference to the drawings.

In this form, it is a thing used by placing it on a part having a level difference or height difference, such as a general house, for example, a rising stile of a front door, a marginal side, a floor such as a dirt floor, or the ground.

In this embodiment, although not shown in particular, the step elimination lifting apparatus A shown in FIG. 1 is placed on the above-mentioned entrance stile, edge side, floor such as dirt, ground, etc., and the boarding base is the lowest part. It is in the state where it is getting off.

As shown in FIGS. 1 to 3, 5, and 6, the step elimination lifting device A is composed of a boarding part B, a sensor part C, a control part D, a handrail part E, an operation part F, and a base part G. The boarding base 2 of the boarding part B is fixed to the boarding base mounting stay 5 fixed to the lower part of the main frame 1 that also constitutes the boarding part B with screws 3 and nuts 4. The board reinforcing member 6 is fixed to the bottom surface of the boarding board 2 and, depending on the strength of the material constituting the boarding board 2, in this embodiment, the boarding board 2 is prevented from being deformed or damaged.

A motor mounting bracket 29 is fixed to the upper part of the main frame 1 described above, and a motor 28 is mounted on the motor mounting bracket 29. In this embodiment, a motor with a speed reducer, commonly known as a geared motor, is used for the motor 28. Of course, a speed reducer may be attached to a normal motor, and various speed reducers using a belt or a chain. May be used.

A screw shaft 20 is connected to the power output shaft of the motor 28 via a coupling 27, and is a main support having a square pipe structure that is vertically fixed to the upper surface of the base 21 constituting the base G. A bearing guide column 18 is fixed to each of the four corners 19 in parallel to the main column 19. Of course, the bearing guide column 18 is also fixed to the base 21 and is shown in FIGS. 5 and 6, etc., but at least one of the four bearing guide columns 18 has an upper limit stop position at the top. This form in which the sensing band 42 is provided will be described later.

A nut 26 is fixed to the upper end of the main column 19 and is screwed with the screw shaft 20. When the power output shaft of the motor 28 is rotated, depending on the rotation direction of the motor 28 power output shaft, The riding section B performs a lifting operation.

In the lower part of the main frame 1, a slide mechanism composed of a guide mounting plate 7, a mounting screw 9, a guide shaft 10 and a bearing 11, which is guided by the bearing guide column 18 near the upper part of the boarding base 2. Have.

As shown in FIG. 5, the slide mechanism is formed by the bearing guide columns 18 fixed to the squares of the main column 19 to guide grooves formed at the centers of the four sides of the main column 19, and the four sides of the main frame 1. A bearing 11 provided rotatably is fitted to two upper and lower guide shafts pivotally attached to a guide attachment plate 7 attached below the center, and prevents the main frame 1 from swinging when sliding. In this example, bearings were used in consideration of rolling resistance, but of course, resin or the like may be used as long as the resistance is low, and eight bearings are used on the top and bottom, for a total of eight bearings. In order to achieve stability, a plurality of bearings or the like may be used not only vertically but also vertically.

A very small gap is provided between the guide groove and the outer periphery of the bearing 11 so that the bearing 11 rotates smoothly.

The motor 28 is covered with a motor cover 30 that constitutes the operation portion F, and the motor cover 30 is fixed to the motor mounting bracket 29 with cover mounting screws 33. A stop switch 31 and an operation switch 32 are attached to the upper portion of the motor cover 30 and are omitted from the drawings. However, the motor 28, the stop switch 31 and the operation switch 32 are connected to the control unit D with electric wires. It is.

The control unit D processes a motor circuit 37 for controlling the rotation direction of the motor 28, a power switch 38 for turning on / off the power, and a signal input from each sensor described later, and sends the motor 28 to the motor circuit 37. The control circuit 39 determines the rotation direction. Although not shown in particular, there are required electric wires.

Next, the sensor unit C includes a sensor 16 for detecting the upper limit stop position and a sensor 24 for detecting the lower limit stop position.

A sensor 24 for detecting a lower limit stop position is attached to the upper surface of the base 21 by a sensor mounting bracket 22, a sensor mounting screw 25, and a mounting bolt 23, and is attached to a lower limit stop position detecting projection 41 fixed to the main frame 1. When the sensing unit of the sensor 24 comes into contact, the position information of the boarding platform 2 is transmitted from the sensor 24 to the control circuit 39 of the control unit D.

As shown in FIGS. 9 and 10, the sensor 16 for detecting the upper limit stop position fixes the sensor 16 to the sensor mounting bracket 14 with a sensor mounting screw 15, and attaches the sensor mounting bracket 14 to the side surface of the main frame 1. The sensor cover 12 is fixed to the long side hole (see FIG. 3) of the sensor cover 12 fixed by screws 17 so as to be slidable vertically.

As described above, the sensor 16 reaches the upper limit stop position detection band 42 provided in one of the four bearing guide struts 18 as shown in FIGS. When the sensing unit moves away from the bearing guide column 18, position information of the boarding platform 2 is transmitted from the sensor 16 to the control circuit 39 of the control unit D.

In the present embodiment, both the sensor 16 and the sensor 24 described above use limit switches to detect the position information of the boarding base 2, but of course, not only the limit switch but also an object such as a magnetic sensor. Any sensor body may be used.

The handrail portion E is provided with a handrail mounting bracket 36 fixed to the main frame 1 and a handrail 35 made of wood-friendly material and having a thickness that is easy to grip with respect to the surface of the boarding base 2. It sticks horizontally.

Next, the operation will be described. When the power switch 38 is turned on and the operation switch 32 provided in the operation unit F is pressed in the state shown in FIGS. 1 to 3 and FIG. 6, the sensor 24 senses the lower limit stop position. Therefore, when an operation command signal is input from the operation switch 32, the control circuit 39 outputs an operation command signal in the initially determined rotation direction (upward direction) to the motor circuit 37. When an operation command signal is input from the control circuit 39 to the motor circuit 37, the motor 28 rotates.

As described above, when the motor 28 is rotated, the screw shaft 20 connected to the power output shaft of the motor 28 is rotated, and the nut 26 fixed to the upper part of the foundation base G, the bearing guide column 18 and the bearing 11 and the like. The riding part B rises while being supported by the guide mechanism.

Next, when the riding section B rises, it automatically stops at the position shown in FIG. This is to detect the upper limit stop position. Since the sensor 16 has reached the upper limit stop position detection zone, an upper limit stop position signal is output from the sensing unit of the sensor 16 and is input to the control circuit 39. This is because a motor operation stop signal is output to the motor circuit 37 to stop the rotation of the motor 28.

In the state shown in FIG. 8, when the operation switch 32 is pressed while the sensor 16 has already sensed the upper limit stop position, the sensor 16 senses the upper limit stop position. When a driving command signal is input from the switch 32, a driving command signal is output to the motor circuit 37 in a direction opposite to the rotation direction (downward direction) of the motor 28 when the riding section B determined first is raised. To do. When an operation command signal is input from the control circuit 39 to the motor circuit 37, the motor 28 rotates.

The lowering operation is opposite to the above-described ascending operation, and when the sensor 24 that detects the lower limit stop position is in contact with the lower limit stop position detection protrusion 41 that is fixed to the main frame 1, the sensor 24 detects the lower limit stop position. The position information of the boarding platform 2 is transmitted from the sensor 24 to the control circuit 39 of the control unit D, and a motor stop signal is output from the control circuit 39 to the motor circuit 37 to stop the motor 28. The above is a thing which shows the form of this invention product in a normal state.

Next, in the embodiment according to claim 1, the operation switch 32 is pushed from the state of FIG. 1, and the stop switch 31 is arbitrarily pushed during the ascending / descending range of the riding section B, or the power is turned off due to a power failure or the like. Then, the riding section B immediately stops within the ascending / descending range of the riding section B as shown in FIGS.

In this case, as described above, the sensors arranged at the upper limit stop position and the lower limit stop position, the sensor 16, and the sensor 24 cannot detect the positions of both positions, and of course, the height position of the riding section B can also be detected. It is not possible, that is, the stop position of the riding section B is not known at the next start-up, so it cannot be determined whether it will be raised or lowered, so it is not possible to move the motor 28 safely for the safety of this device. If this device is set so that it can move either up or down, the passenger can start up next time with peace of mind.

However, if it is set to descend, the body of the passenger or nearby person may be caught between the floor and the boarding section B, causing injury, etc. Is limited to the ascending motion.

As a method, when neither the upper limit stop position signal nor the lower limit stop position signal that should be input to the control circuit 39 constituting the control unit D is input, the control circuit 39 determines, When neither the upper limit stop position signal nor the lower limit stop position signal is input, whenever the operation command signal is input from the operation switch 32, the control circuit 39 causes the motor circuit 37 to enter the initially determined rotational direction (increase). Direction command) is output.

Therefore, when the device is stopped in the middle of at least two stop positions (lifting range), for example, by pressing the stop switch 31 in an emergency or when the power is turned off due to a power failure or the like, the height of the riding section B is reached. Regardless of the safety performance, which is one of the important performances of welfare equipment, the riding section B moves up at the next start-up so that there is no fear of the passenger's body being caught between the floor and the riding section B. effective.

Next, as shown in FIG. 3, the sensor 16 for detecting the upper limit stop position can slide between the long holes of the sensor cover 12 attached to the main frame 1. Since the knob bolt 13 can be fixed at an arbitrary position, if the sensor 16 is fixed below the elongated hole as shown in FIG. 9, the time sensed by the upper limit stop position detection band 42 is long, that is, ascending and descending. Since the range distance becomes large, the riding section B rises to a high position.

On the other hand, if the sensor 16 is fixed above the elongated hole as shown in FIG. 10, the time sensed by the upper limit stop position sensing band 42 is short, that is, the lift range distance becomes small. It stops at a lower position than the case where it is attached downward.

Therefore, it is possible to arbitrarily change the lifting range of the riding section B, so that the required lifting height varies depending on various situations such as rising up and down of the above-mentioned entrance where the apparatus is installed, the edge side, the soil, etc. Accordingly, since the raising / lowering range of the riding section B can be changed, there is an effect that the range in which the boarding unit B can be installed is very large without being limited in place of use.

It is a front view for implementing the level | step difference elimination raising / lowering apparatus which concerns on this invention. It is a left view of FIG. It is a right view of FIG. It is a front view which shows a part of operation | movement of this invention. It is a partially expanded cross-sectional top view. It is a cross-sectional front view of FIG. FIG. 7 is a cross-sectional front view showing a part of the operation process of FIG. 6. FIG. 7 is a cross-sectional front view showing a part of the operation process of FIG. 6. It is a principal part expanded sectional front view which shows a part of operation | movement of this invention. It is a principal part expanded sectional front view which shows a part of operation | movement of this invention.

Explanation of symbols

A Level difference elimination lifting device B Boarding part C Sensor part D Control part E Handrail part F Operation part G Foundation base part 1 Main frame 2 Boarding base 3 Screw 4 Nut 5 Boarding base mounting stay 6 Boarding base reinforcement member 7 Guide mounting plate 8 Installation Screw 9 Mounting screw 10 Guide shaft 11 Bearing 12 Sensor cover 13 Knob bolt 14 Sensor mounting bracket 15 Sensor mounting screw 16 Sensor 17 Sensor cover mounting screw 18 Bearing guide column 19 Main column 20 Screw shaft 21 Base base 22 Sensor mounting bracket 23 Mounting bolt 24 Sensor 25 Sensor mounting screw 26 Nut 27 Coupling 28 Motor 29 Motor mounting bracket 30 Motor cover 31 Stop switch 32 Operation switch 33 Cover mounting screw 34 Blind rivet 35 Handrail 36 Handrail mounting bracket 37 Motor circuit 38 Power switch 39 Control times Road 40 Electrical cover 41 Lower limit stop position detection protrusion 42 Upper limit stop position detection zone

Claims (2)

A riding part is disposed at the lower part of the frame that moves up and down in the vertical direction by the rotation of a screw shaft that is attached to an electric motor shaft that can rotate forward and backward, and senses the upper limit stop position and the lower limit stop position of the riding part. In the step-lifting lifting device that regulates the lifting range by the sensor unit, the device is provided with a stop switch for stopping the lifting operation within the lifting range, and after the device is stopped by the stop switch during the lifting operation, A step-lifting lifting device characterized by performing an ascending operation. A riding part is disposed at the lower part of the frame that moves up and down in the vertical direction by the rotation of a screw shaft that is attached to an electric motor shaft that can rotate forward and backward, and senses the upper limit stop position and the lower limit stop position of the riding part. 2. The step according to claim 1, wherein the upper / lower sensor part position can be arbitrarily changed and the raising / lowering range of the riding part can be arbitrarily changed. Lifting device.

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