JPH1192058A - Driving mechanism and moving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving mechanism of simple structure and low cost in which a movable member is smoothly driven, and a moving device using the drive mechanism. SOLUTION: A device comprises a drive guide 18 provided to be protruded on a roughly perpendicular surface 14, and a movable member 26 locked to the drive guide 18 to move roughly parallel to the surface 14. The movable member 26 is provided with plural arms 34 radially extended from a rotation axis 32 speed-reduced and rotation-driven by a motor 30 to be positioned roughly perpendicular to the surface 14 to rotate facing the surface 14, and engagement pieces 36 installed on tips of the arms 34. Plural roughly triangular guide surfaces 22, 24 line-symmetric to a supposed line positioned roughly perpendicular to a moving direction of the movable member 26 are continuously formed on the drive guide 18 to be apart from each other for a specified interval, and the guide surfaces 22, 24 are only a little curved outward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive mechanism which can be used for an elevator provided at an elevating place such as a public facility or a home stair, and a moving apparatus using the drive mechanism.

[0002]

2. Description of the Related Art Stairs and steps at stations and the like are serious injuries to wheelchairs, which are a general means of transportation for persons with disabilities. Especially in urban areas, there are many high-rise buildings, and not only the above-mentioned stations, but also public transportation such as libraries and city halls, and shopping centers, etc. It is sufficient and limits the opportunities for disabled people to participate in society and various activities.

[0003] In consideration of the above, a simple system that enables a handicapped person to easily go up and down stairs is required to support social participation of the handicapped person.
There is already known a system in which an elevating platform is guided by a guide rail, and one of the guide rails is driven up and down by a rope, a gear, or a chain wheel.

Further, as disclosed in Japanese Patent Application Laid-Open No. Hei 7-117954, a large number of drive guides are provided between two guide rails installed on the wall of a stair, and an engaging element that engages with the drive guides. There is a type in which a lifting platform having a vertical movement is driven. This stair climbing device for the handicapped is provided with a rotating shaft that is rotationally driven by a motor provided on a lifting platform. The arm extends radially from the rotating shaft and rotates at the tip of a plurality of arms facing the wall. , Each of which is provided with an engagement element which sequentially engages with and is guided by a large number of drive guides provided in the drive guides. And, as a retracting means of the arm after engagement with the drive guide, the rotation axis of the arm is inclined with respect to the wall of the stairs,
The rotation path of the engagement element in the arm return step is separated from the drive guide.

[0005]

The stair-climbing device for the handicapped needs not only to be useful to the handicapped by its initial functions, but also to be safe and at the same time not to hinder the healthy. is there. For that purpose, it is necessary that a fixed installation structure is installed so as not to hinder the actions of healthy persons, and that movable equipment can be stored in a storage area such as behind a staircase when not in use. In order to spread the technology, it is important to satisfy the required transfer function, and at the same time, it is important that the device is inexpensive, easy to install, easy to maintain, and has sufficient safety considerations. In both cases, these requirements were not always satisfied.

Further, in the latter case of the prior art, since the rotation axis of the arm is inclined with respect to the wall of the stairs, it is difficult to manufacture and adjust the arm later, and the drive guide has a plate-like member having a predetermined shape. It is curved and attached to a wall at regular intervals. The installation work is troublesome, and the members are large in order to obtain a sufficient strength, so that cost and man-hours are required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple structure, a low cost, and a driving mechanism for smoothly driving a moving member, and a moving device using the driving mechanism. The purpose is to provide.

[0008]

SUMMARY OF THE INVENTION The present invention provides a drive mechanism having a drive guide protruding from a substantially vertical surface and a moving member locked by the drive guide and moved substantially parallel to the surface. It is. The moving member includes a plurality of arms that are driven to rotate at a reduced speed by a motor and radially extend from a rotation axis positioned substantially perpendicular to the surface and rotate to face the surface, and an engaging element attached to a tip of the arm. Is provided. The drive guide is formed with a plurality of linearly symmetrical substantially triangular guide surfaces sandwiching an imaginary line positioned substantially perpendicular to the moving direction of the moving member and continuously formed at a predetermined interval from each other. The guide surfaces are each slightly curved outward. Then, the engaging portion of the moving member moves on the guide surface with the rotation of the arm, and before the engaging member reaches the end of the guide surface, the next engaging member moves to the next guide surface. In contact, the moving member moves continuously. The drive guide may be formed such that a bottom surface parallel to the moving direction of the moving member and a substantially triangular protrusion formed by the substantially triangular guide surface are individually arranged at predetermined intervals. .

The present invention also provides a guide rail protruding from a substantially vertical wall of a building, a drive guide provided substantially parallel to the guide rail and protruding from the wall, and the guide This is a moving device provided with a moving table that is slidably engaged with a rail and moves along the drive guide. A plurality of arms which are decelerated and rotated by a motor and are radially extended from a rotation axis positioned at a substantially right angle to the wall, and are rotated to face the wall,
An engaging element attached to the tip of the arm is provided. A plurality of linearly symmetrical triangular guide surfaces are continuously formed at predetermined intervals from each other with an imaginary line positioned substantially at right angles to the guide rails on the drive guide, and each of the guide surfaces is It is slightly curved outward. The engaging element of the moving table moves on the guide surface with the rotation of the arm, and before the engaging element reaches the end of the guide surface, the next engaging element contacts the next guide surface, The moving table moves continuously. The arm is
When the wall is flat and straight ahead facing the wall, it rotates in a parallel plane of the wall, and when the wall turns curved and faces the wall, the tangential direction of the curved surface of the wall The guide rail that rotates in a plane may be provided via a handrail formed along the wall. A gear is provided on the rotating shaft, and an effective lifting speed can be freely obtained by replacing a pair of the gears or one of them.

[0010] Further, the moving table has a fixing member having an engaging member attached to the guide rail, an elevating table slidable up and down with respect to the fixing member, and the elevating table attached to the fixing member. There is provided a drive mechanism for raising and lowering. Then, at the time of getting on / off or loading the elevator, the elevator is lowered to the floor, and a step with the floor can be eliminated.

The operation of the moving device is as follows. First, when the motor is driven to rotate, the engaging element comes into contact with the guide surface in the traveling direction among the substantially triangular guide surfaces of the drive guide, and the engaging member moves along the guide surface. Moving downward, the moving table moves in the traveling direction. Before the engaging element contacts the end of the guide surface, the next engaging element contacts the guide surface in the traveling direction of the next drive guide, moves downward along this guide surface, and repeats this. Thus, the moving table moves continuously and smoothly. The preceding engagement element that has reached the edge of the guide surface in the direction of travel of the drive guide moves upward along the guide surface opposite to the direction of travel of the next drive guide, and moves away from the drive guide. For this reason, the preceding engaging element does not interfere with the drive guide in the arm return process, and the safety is high. In addition, the moving table, which is an additive facility, can be detached, and can be guided to a place where it is not obstructed when not in use.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a drive mechanism of the present invention and a stair climbing device 10 for a disabled person, which is a first embodiment of a moving device using the drive mechanism.

The stair climbing and lowering device 10 for the handicapped is provided with a staircase 1
Two upper and lower parallel guide rails 16 are installed on the wall 14 along the two inclined directions. A plurality of drive guides 18 are provided on the wall 14 between the pair of guide rails 16.
Projecting from the wall 14 with a substantially uniform thickness. The cross-sectional shape of the drive guide 18 that is substantially parallel to the wall 14 has a bottom surface 20 that is parallel to the guide rail 16 and a guide that is formed continuously at the upper edge of the bottom surface 20 and that is slightly outwardly curved. An approximately triangular shape comprising an upper curved surface 22 which is a surface and a lower curved surface 24 which is a guide surface which is formed continuously at a lower edge portion of the bottom surface 20 and is slightly curved outward,
The upper curved surface 22 and the lower curved surface 24 are substantially line-symmetric. The upper curved surface 22 of each drive guide 18 is a guide for giving a movement at a substantially constant speed in the ascending and descending direction of the stairs 12 with respect to the rotation axis of the arm 34 when the roller 36 of the arm 34 described later moves while abutting. Plane. The plurality of drive guides 18 are provided such that the respective bottom surfaces 20 are located on a straight line parallel to the guide rails 16 and are arranged at predetermined intervals.

An elevator 26 as a movable table is slidably mounted on the guide rail 16. The elevator 26 has a rectangular plate-shaped fixing plate 28 provided in parallel with the wall 14 as a fixing member.
Are provided with a pair of engaging members 32 located vertically on a vertical imaginary line. A pair of engaging members 3
2 are slidably attached to the guide rails 16 respectively.

A motor 30 is fixed in the vicinity of the center of the fixed plate 28. The motor 30 is provided with a rotating shaft 35 that is driven to rotate by the motor 30 and protrudes toward the wall 14. The rotating shaft 35 is rotationally driven at a reduced speed via a reduction gear box (sealed type) and a pair of gears (design change is easy only by changing the mounting position in response to the change in lifting speed). The rotating shaft 35 is provided with four arms 34 extending radially in four directions and rotating facing the wall 14 at equal intervals.
The arm 34 rotates in a plane parallel to the wall 14 when the wall 14 is flat, and rotates in a tangential plane to the curved surface of the wall 14 when the wall 14 is curved at a landing of a stair, etc. It rotates with the corresponding surface force of the previous term according to the turn.

A driving guide 18 is provided at the tip of each arm 34.
A rotatable roller 36 is provided as an engaging element which is sequentially engaged with and guided by the roller. The roller 36 has a cross section including a rotatable shaft and has an outer periphery formed with a straight line or an appropriate curved surface, and rotates substantially parallel to the wall 14. The arm 34 and the drive guide 18 are arranged so that the drive guide 18 is located below a rotation shaft 35 that is the center of rotation of the arm 34.

As shown in FIG. 4, engaging projections 29 projecting outward are provided on the side edges of the fixed plate 28 of the elevator 26 in the vertical direction. An electric cylinder 33 is vertically fixed to a surface of the fixing plate 28 opposite to the wall 14. A shaft member 37 that moves up and down is provided on the electric cylinder 33 upward, and a frame 38 is attached to a tip of the shaft member 37. The frame 38 has a rectangular shape, is formed slightly larger than a side edge of the fixing plate 28, and is positioned parallel to the fixing plate 28. A vertically long guide member 40 is attached to the entire vertical side edges of the frame 38, and a pair of guide members 4 is provided.
A guide groove is formed in the mutually opposing surfaces along the vertical direction, and an engagement protrusion 29 of the fixed plate 28 is slidably fitted inside the guide groove. At the lower edge of the frame 38 is mounted a flat plate-shaped elevating table 42 which projects in the horizontal direction and on which a wheelchair or the like is mounted.

Next, the stair climbing and lowering device 1 for the handicapped according to the present invention.
The operation of 0 will be described. First, the elevator 26 is moved to the stairs 12
1, the motor 30 is operated clockwise on the drawing of FIG.
The four leading rollers 36 move to the lower right along the upper curved surface 22 of the drive guide 18, and accordingly, the elevator 26 moves to the upper right in parallel with the guide rail 16. Before the roller 36 reaches the end of the upper curved surface 22, the next roller 36 abuts on the upper curved surface 22 of the drive guide 18 on the right side, moves to the lower right along the upper curved surface 22, and moves up and down.
6 moves to the upper right at a substantially constant speed. At this time, the preceding roller 36 arriving at the end of the upper curved surface 22 abuts on the lower curved surface 24 of the drive guide 18 on the right side and moves to the upper right along the lower curved surface 24, and the lower curved surface 24 After reaching the end of the drive guide 18, it separates from the drive guide 18, and this operation prevents rattling in the movement direction. By repeating this, the elevator 26 smoothly rises to the upper right at a constant speed. When lowering the elevator 26 along the stairs 12, the motor 30 is operated counterclockwise in the drawing, and is moved to the lower left by an operation opposite to the above. Since the roller 36 and the preceding roller 36 descend while sandwiching the upper curved surface 22 and the lower curved surface 24 of the drive guide 18, the lift 26 is prevented from sliding and rattling, and moves smoothly. As shown in FIG. 3, the relative movement between the drive guide 18 and the roller 36 as the engaging element during the ascent and descent is such that the roller 36 always contacts the upper curved surface 22 and the lower curved surface 24 of the drive guide 18 and moves up and down.

The elevator 26 is guided by the guide rails 16 by the pair of engaging members 32 to maintain the posture, and a driving force acts between the pair of guide rails 16. A smooth movement of the lift 26 can be obtained without any uneven load acting between them. The engaging member 32 is simply slid with respect to the guard rail 16 while holding the guide rail 16, and does not include a driving gear or the like. Therefore, there is no need to provide a drive rack or the like on the guide rail 16, and the guide rail 16 only needs to be able to support the load of the elevator 26. It is possible to form the pedestrian by using lubricating oil, and there is no fear of soiling the clothes of the pedestrian, thereby improving safety.

When a disabled person gets on or off the lower end or upper end of the stairs 12, as shown in FIG.
3, the shaft member 37 is moved downward, so that the frame 38 and the elevator 42 descend in the narrow space, and
It is superimposed on 4. Thereby, the lifting platform 4 on which the wheelchair is placed
Since there is no step between the floor 2 and the floor 44, the disabled person himself / herself gets on and goes up and down, thereby making it easy for the disabled person to go up and down the steps.

The stair climbing and lowering device 10 for the disabled according to this embodiment
According to the method, a disabled person is moved with a wheelchair smoothly and safely at a constant speed. Guide rail 1
6. The drive guide 18, and the elevator 26 have a simple structure and high accuracy, and can be easily and inexpensively manufactured and installed. Since the structure is such that the pair of engaging members 32 and the motor 30 are provided on a substantially vertical imaginary line, the elevator 26 can be moved even in a portion where the guide rail 16 is curved at the landing of the stairs 12 or the like. . The guide rail 16 as a fixed installation structure is shaped like a handrail, and has a drive guide 18.
And the like have a simple and planar structure, so that an aesthetic composition can be achieved without hindering the action of a healthy person and without hindering the landscape. In addition, the lift 26 which is a movable equipment can be removed by bending and extending the guide rail 16,
When not in use, it can be guided to a place such as a storage room that does not interfere, and can be stored.

Next, a second embodiment of the present invention will be described with reference to FIG.
It will be described based on. Here, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. The stair climbing device 46 for a disabled person according to the present embodiment is provided with a chair-shaped elevator 48, and a disabled person who does not use a wheelchair sits on the chair-shaped elevator 48 and moves up and down the stairs.

The stair-climbing device 46 for the disabled according to this embodiment
Is almost the same as the above embodiment and has the same effect.

The drive mechanism of this embodiment and the moving device using the drive mechanism are not limited to the above embodiments, and the shape of each member and the like can be appropriately changed.
In addition to the stair climbing device for the handicapped, the present invention can also be applied to general household elevators and lifts that move heavy objects in factories and the like. In addition, the guide rail may be a single guide rail, and the guide rail may be attached to a strong handrail or the like without being directly attached to the wall. The elevating speed of the elevator can be freely set by changing the comparison of the pair of gears. The engaging member attached to the guide rail may be provided with a roller or the like so that it can roll freely. The elevator 42 and the chair-type elevator 48 of the elevator 26 may be of a foldable type, and may be compact when not in use.

[0025]

The driving mechanism and the moving device using the driving mechanism of the present invention have a simple structure, are inexpensive to manufacture, and are easy to install and maintain. In addition, the appearance is simple, and it is safe and effective for future social situations without spoiling the appearance.

[Brief description of the drawings]

FIG. 1 is a front view of a stair climbing device for a disabled person according to a first embodiment of the present invention.

FIG. 2 is a schematic view showing a relational movement between a drive guide and an engaging element of the stair-climbing device for a disabled person according to the embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a plan view (A), a front view (B), and a right side view (C) showing the elevator of this embodiment.

FIG. 5 is a front view of a stair-climbing device for a disabled person according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Stair climbing device for handicapped person 16 Guide rail 18 Drive guide 22 Upper curved surface 24 Lower curved surface 26 Elevator 30 Motor 32 Engaging member 34 Arm 36 Roller

Claims (5)

[Claims] A drive guide protruding from a substantially vertical surface, and a moving member locked by the drive guide and moving substantially parallel to the surface, wherein the moving member is provided with a motor. A plurality of arms that are driven to rotate, extend radially from a rotation axis positioned substantially at right angles to the surface, and rotate to face the surface, and an engaging element attached to the tip of the arm are provided. A plurality of linearly symmetrical substantially triangular guide surfaces are continuously formed at predetermined intervals from each other with an imaginary line positioned substantially perpendicular to the moving direction of the moving member, and the guide surfaces are each formed on the outer side. The engaging member moves along the guide surface with the rotation of the arm, and the next engaging member moves before the engaging member reaches the end of the guide surface. Contacts the next guide surface, A driving mechanism wherein the moving member moves continuously as the arm rotates. 2. The drive guide according to claim 1, wherein a bottom surface parallel to a moving direction of the moving table and a substantially triangular protrusion formed by the substantially triangular guide surface are individually arranged at predetermined intervals. The drive mechanism according to claim 1, wherein 3. A guide rail protruding from a substantially vertical wall of a building, a drive guide protruding from the wall substantially parallel to the guide rail, and sliding on the guide rail. A movable platform is provided, which is movably engaged and moves along the drive guide, and the movable platform is driven by a motor to rotate and extends radially from a rotation axis positioned substantially at right angles to the wall. A plurality of arms rotating face-to-face and an engaging element attached to the tip of the arm are provided, and the drive guide has a substantially triangular line symmetrical with an imaginary line positioned substantially perpendicular to the guide rail. A plurality of guide surfaces are formed continuously at predetermined intervals and are spaced apart from each other. Each of the guide surfaces has a curved surface slightly bulging outward, and the engaging element of the moving table is adapted to rotate the arm. Together Before the engagement element reaches the end of the guide surface, the next engagement element contacts the next guide surface, and the movable table moves continuously with the rotation of the arm before the engagement element reaches the end of the guide surface. A mobile device characterized by the above-mentioned. 4. The moving device according to claim 3, wherein the guide rail is provided so as to protrude from a substantially vertical wall of a stair of a building, and the moving table moves along the stair. 5. The moving table includes a fixing member having an engaging member attached to the guide rail, an elevating table slidable up and down with respect to the fixing member, and the elevating table with respect to the fixing member. 4. A drive device for raising and lowering is provided, wherein the lifting table moves up and down with respect to a floor surface.
Or the mobile device according to 4.