JP2014129171A - Ramp lifting/lowering equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide ramp lifting/lowering equipment capable of properly maintaining an attitude of a lifting body in a longitudinal view of a guide rail, when the lifting body is guided for ascent/descent by the guide rail with a curved part.SOLUTION: Even when longitudinal positions of a guide rail R of a lifting body 3 are different from each other, a plurality of abutting locations, in which a plurality of abutting parts abut on a plurality of guide surfaces, belong to orthogonal planes P1-P3 orthogonal to a reference line at corresponding points on the reference line corresponding to a position of the lifting body 3, and positions with respect to the corresponding points are identical to each other.

Description

  The present invention is installed along a staircase or an inclined path, and has a guide rail having a curved portion curved in a plan view between an upper end portion and a lower end portion, and is supported by the guide rail along the guide rail. And a lifting body that moves up and down by moving, and the lifting body is in contact with a guide surface of the guide rail and includes a plurality of contact portions that determine a posture of the lift body with respect to the guide rail It relates to road lifting equipment.

  As an example of such ramp ascending and descending equipment, a guide rail is installed along a staircase having a curved portion, and a chair on which a person or the like as a transport target body rides on a lift that is guided by the guide rail and moves up and down. There is a stair climbing facility that is mounted and configured to transport a passenger seated in a chair up and down between the top and bottom of the stair.

In such a stair climbing equipment, since it is required to lift and convey a passenger sitting on the seat surface of the chair in a stable posture even in a curved portion, it is necessary to stabilize the posture of the lifting body to which the chair is attached. .
For this reason, two guide pipes are arranged side by side as a guide rail so as to be separated in the vertical direction, and a guide portion guided by each of the two guide pipes is provided on the lifting body, and these guide portions are provided with two guide portions. It is possible to stabilize the posture of the lifting body even when the lifting body moves up and down the bending portion by being guided by the guide pipe.
However, in such a configuration, a large space is required in the vertical direction when installing the guide rail, which is disadvantageous particularly when the stair lifting device is provided for the staircase for a house with various restrictions in installing the stair lifting device. It is a simple configuration.

  In order to reduce the vertical space required for the installation of the guide rail, it is conceivable to form the guide rail with a single cylindrical guide pipe. As an example of this, the elevating body is provided with a guide roller having a recess formed on the side surface and arranged to face the recess, and the elevating body is guided to elevate in a form in which the guide pipe is sandwiched between the guide rollers. (For example, refer to Patent Document 1).

  However, with only one cylindrical guide pipe and a guide roller sandwiching it, the lifting body rotates in the circumferential direction of the guide pipe, and the posture of the lifting body that moves up and down is not stable and is supported by the lifting body. The chair may be inclined in a plane perpendicular to the longitudinal direction of the guide rail. Therefore, in Patent Document 1, a guide rail is formed by a cylindrical guide pipe and a guide that is vertically attached below the guide rail so that a specific contact portion always has the same posture as viewed in the longitudinal direction of the guide pipe. And an abutting body for posture stabilization that comes into contact with the abutting portion of the guide plate from the front side of the chair, below the guide roller in the elevating body. By abutting with the abutting portion, the posture of the elevating body as viewed in the longitudinal direction of the guide rail when the elevating body moves up and down is stabilized even in the curved portion.

JP-A-9-212290

  The guide rail as in Patent Document 1 can process the guide pipe by a relatively easy method of winding the guide pipe around a cylindrical body having a desired curvature when forming the curved portion. There is a problem in that it takes time to create the guide rail when the guide rail has a curved portion.

  The present invention has been made in view of the above circumstances, and its purpose is to appropriately adjust the posture of the lifting body in the longitudinal direction of the guide rail when the lifting body is guided by the guide rail having a curved portion. It is in providing the ramp raising / lowering equipment which can be maintained.

The first characteristic configuration of the ramp lifting and lowering equipment according to the present invention for solving the above-described problems is provided along a staircase or a ramp, and a curved portion that is curved in plan view is provided between the upper end and the lower end. A guide rail, and a lift body that is supported by the guide rail and that moves up and down by moving along the guide rail. The lift body abuts against a guide surface of the guide rail, and A ramp elevating equipment comprising a plurality of abutting portions for determining the posture of the elevating body,
The guide rail is installed along a reference line set based on a lifting trajectory of the lifting body, and includes a plurality of guide surfaces with which each of the plurality of contact portions abuts as the guide surface, The plurality of contact portions where the plurality of contact portions contact the plurality of guide surfaces may correspond to the reference position corresponding to the position of the lift body even if the position of the lift body in the longitudinal direction of the guide rail is different. The corresponding point on the line belongs to an orthogonal plane orthogonal to the reference line, and is configured such that the position with respect to the corresponding point is the same.

That is, regardless of the position of the lifting body in the longitudinal direction of the guide rail having the curved portion (hereinafter referred to as the lifting position of the lifting body), the corresponding point corresponding to the lifting position is within the orthogonal plane. The positions of the plurality of contact portions with respect to the corresponding points are the same.
The plurality of contact portions determine the posture of the lifting body by contacting with the plurality of contact portions of the guide rail. Therefore, the lifting body can be lifted or lowered regardless of the lifting position. The postures in the orthogonal plane for the corresponding points on the reference line corresponding to the position are the same. That is, even if the raising / lowering body differs in the raising / lowering position, the attitude | position in the longitudinal direction view of the guide rail in each raising / lowering position becomes the same attitude | position. Therefore, even if the raising / lowering body which is guided by the guide rail and moves up and down is different in the raising / lowering position, the posture of the guide rail in the longitudinal direction is appropriately maintained.

  Moreover, since the guide rail can determine the posture of the lifting body in a plane perpendicular to the longitudinal direction of the guide rail with a simple configuration that includes a plurality of guide surfaces with which each of the plurality of contact portions abuts, It is not necessary to attach a separate structure for determining the posture of the lifting body to the guide rail, for example, a guide plate for maintaining the posture extending downward, and the guide rail can be easily formed.

  As described above, according to the first characteristic configuration, when the lifting body is lifted and guided by the guide rail having the curved portion, the inclination capable of appropriately maintaining the posture of the lifting body as viewed in the longitudinal direction of the guide rail. Road lifting equipment can be provided.

  In addition to the first feature configuration, the second feature configuration of the ramp lifting equipment according to the present invention is such that the guide rail is orthogonal to the reference line at any location in the longitudinal direction. The cross-sectional shape in the plane and the posture of the cross-sectional shape in the normal direction view of the orthogonal plane are the same.

  That is, since the guide rail is configured so that the cross-sectional shape in the orthogonal plane orthogonal to the reference line is the same at any location in the longitudinal direction, the guide rail is formed by extrusion, for example. Thus, the guide rail can be formed easily.

  Thus, according to the second feature configuration, a preferred embodiment of the first feature configuration can be provided.

  A third characteristic configuration of the ramp lifting equipment according to the present invention is that, in addition to the second characteristic configuration, the guide rail has a polygonal cross-sectional shape on the orthogonal plane.

That is, the guide rail has a cross-sectional shape in an orthogonal plane formed from a plurality of linear portions, and all or a part of the plurality of linear portions correspond to a plurality of guide surfaces in the guide rail. Therefore, the plurality of abutting portions of the elevating body are guided by the plurality of guide surfaces whose cross-sectional shape in the orthogonal plane is linear.
Therefore, since the contact relationship between the plurality of contact portions in the lifting body and the plurality of guide surfaces corresponding to the plurality of contact portions does not change, for example, the cross-sectional shape of the guide rail in the orthogonal plane is circular. In such a case, there is no risk of the lifting body rotating in the circumferential direction of the circular cross-sectional shape, and the posture in the plane perpendicular to the longitudinal direction of the guide rail of the lifting body is stabilized. Can do.

  As described above, according to the third feature configuration, in addition to the function and effect of the second feature configuration, the ramp ascent and descent that can stabilize the posture in the plane perpendicular to the longitudinal direction of the guide rail of the elevator body is possible. Facilities can be provided.

  In addition to any one of the first to third characteristic configurations described above, the fourth characteristic configuration of the ramp lifting equipment according to the present invention is the step or slope of the guide rail in the curved portion of the step or the ramp. It exists in the point provided in the curve center side edge part in the horizontal width direction of a road.

  That is, when the guide rail is provided at the curved center side end in the lateral width direction of the staircase or the ramp in the curved portion of the staircase or the ramp, the guide rail is curved outwardly in the lateral direction of the staircase or the ramp. The curvature at the curved portion of the guide rail is larger (the radius of curvature is smaller) than when the guide rail is provided. If a separate structure for determining the posture of the lifting body is attached to the guide rail, for example, a structure for attaching a guide plate for posture maintenance that extends downward, it is cumbersome to attach a separate structure having a large curvature as described above. According to the guide rail having any one of the first to third features described above, the guide rail having a large curvature of the curved portion can be obtained without such complicated work. Can be formed.

  Thus, according to the fourth feature configuration, in addition to the operational effects of any one of the first to third feature configurations, the guide rail having a large curvature of the curved portion is formed without complicated work. be able to.

  In addition to any one of the first to fourth characteristic configurations, a fifth characteristic configuration of the ramp lifting equipment according to the present invention is characterized in that the lifting body includes the plurality of abutting portions and has a posture with respect to the guide rail. The mounting unit is provided with a support unit that determines whether the transport object is mounted and is supported by the support unit.

  That is, since the mounting unit for mounting and supporting the object to be conveyed is supported by the support unit that is guided to be lifted and lowered in a state in which the posture with respect to the guide rail is determined, even if the support unit moves up and down along the guide rail, The posture of the mounting portion in the longitudinal direction of the guide rail at each lift position is the same posture. Therefore, even if the raising / lowering body which is guided by the guide rail and moves up and down is different in the raising / lowering position, the posture of the guide rail in the longitudinal direction is appropriately maintained. For this reason, the conveyance target object mounted and supported by the mounting part can be moved up and down in a stable posture.

  Thus, according to the fifth feature configuration, in addition to the operational effects of any one of the first to fourth feature configurations, the longitudinal direction of the guide rail can be used regardless of the lift position of the lift body. It is possible to provide a ramp ascending / descending facility capable of appropriately moving up and down the conveyance target body while suppressing a change in the posture of the placement unit as viewed.

  The sixth characteristic configuration of the ramp lifting and lowering equipment according to the present invention includes, in addition to any one of the first to fourth characteristic configurations, the two lifting units arranged along the guide rail, Each of the support units includes the plurality of contact portions, and is configured so that the posture of each of the support units with respect to the guide rail is determined separately, and a mounting unit that mounts and supports the conveyance target body, A rotation connecting shaft portion supported by one of the two support units and rotatably connecting the two support units around a rotation axis along the guide rail is provided. When one of the units rotates around the rotation connecting shaft, the other of the two support units is rotated and connected in a state opposite to the one rotation direction of the support unit. Rotate around the shaft To lies in the interlocking coupling mechanism is provided for interlocking coupling between the two support units.

  That is, since the two support units are determined with respect to the guide rails separately, in the curved portion of the guide rail, one support unit and the other support unit have different postures, The other support unit is rotated so as to have a different angle around the rotation connecting shaft portion. Then, when one of the two support units rotates around the rotation connection shaft portion, the other support unit rotates around the rotation connection shaft portion in a state opposite to the rotation direction of the one support unit. Since it is connected by the interlocking connection mechanism so as to rotate, the guide rail is tightened by one and the other of the two support units.

  And, since the guide rail is properly tightened with the two support units in this way, the load of the mounting portion can be accurately dispersed and supported by the two support units connected by the rotation connecting shaft portion. Each of the plurality of contact portions can be formed as small as possible. For this reason, for example, when the guide rail is installed near the wall surface of the end of the staircase or the ramp, the space for the presence of a plurality of contact portions can be reduced, and the guide rail is made as close to the wall surface as possible. The installation space of the guide rail can be reduced as much as possible.

Moreover, although the mounting part which mounts and supports a conveyance target body will be provided with the form supported by one of two support units, the state with which one support unit is determined with respect to a guide rail is determined. Therefore, even if the lifting body moves up and down, the posture of the mounting portion with respect to the guide rail is maintained.
As described above, the guide rail is configured so that the posture of the orthogonal plane perpendicular to the reference line is the same when viewed in the normal direction at any position in the longitudinal direction of the guide rail. The section has the same posture in the direction of the direction of the orthogonal plane perpendicular to the reference line at any position in the longitudinal direction of the guide rail, and the mounting section is positioned at any position in the longitudinal direction of the guide rail. It is possible to appropriately move up and down while suppressing a change in the posture of the orthogonal plane perpendicular to the reference line of the object to be mounted and supported in a normal direction.

  Thus, according to the sixth feature configuration, in addition to the operational effects of any of the first to fourth feature configurations, the longitudinal direction of the guide rail can be used regardless of the lift position of the lift body. It is possible to provide a ramp ascending / descending equipment capable of appropriately moving up and down the conveyance target body while suppressing a change in the posture of the placement unit as viewed, and further reducing the installation space of the guide rail as much as possible.

  The seventh characteristic configuration of the ramp lifting and lowering equipment according to the present invention includes, in addition to any one of the first to fourth characteristic configurations, the two lifting units arranged along the guide rail, Each of the support units includes the plurality of abutting portions, and is configured such that the posture of each of the support units with respect to the guide rail is determined separately, and the staircase or the slope of the two support units A lifting drive unit that drives the lifting body to move up and down and a mounting part that mounts and supports the transport target body are supported on one side close to the upper side end portion of the first and second support units along the guide rail. In the state where the distance in the direction is fixed, there is provided a rotating connecting shaft portion that is rotatably connected around the rotating shaft center along the guide rail and can support the load.

  That is, at the curved portion of the guide rail, one support unit and the other support unit have different postures, and the one support unit and the other support unit are rotated so that they have different angles around the rotation connecting shaft portion. In a moving form, the two support units can be along the curved portion of the guide rail. In addition, the rotation connecting shaft portion that connects the two support units is configured to be able to support the load, and one of the two support units is close to the upper end of the staircase or the ramp, and the lifting drive unit and the mounting unit Is supported by the two support units in a distributed manner, and each of the plurality of contact portions can be formed as small as possible. For this reason, for example, when the guide rail is installed near the wall surface of the end of the staircase or the ramp, the space for the presence of a plurality of contact portions can be reduced, and the guide rail is made as close to the wall surface as possible. The installation space of the guide rail can be reduced as much as possible.

  In addition, the placement unit that places and supports the object to be transported is provided in a form that is supported by one of the two support units that is close to the upper end of the staircase or the ramp, but one support is provided. Since the unit is lifted and lowered in a state in which the posture with respect to the guide rail is determined, the posture of the mounting portion with respect to the guide rail is maintained as the lift body moves up and down.

  As described above, the guide rail is configured so that the posture of the orthogonal plane perpendicular to the reference line is the same when viewed in the normal direction at any position in the longitudinal direction of the guide rail. The section has the same posture in the direction of the direction of the orthogonal plane perpendicular to the reference line at any position in the longitudinal direction of the guide rail, and the mounting section is positioned at any position in the longitudinal direction of the guide rail. It is possible to appropriately move up and down while suppressing a change in the posture of the orthogonal plane perpendicular to the reference line of the object to be mounted and supported in a normal direction.

  Thus, according to the seventh feature configuration, in addition to any one of the first to fourth feature configurations, in addition to the operational effects of any one of the first to fourth feature configurations, Regardless of the elevation position, it is possible to suppress the change of the posture of the mounting part in the longitudinal direction of the guide rail, and to appropriately convey the object to be conveyed, and to install the guide rail It is possible to provide a ramp raising / lowering facility capable of making the space as small as possible.

Side view showing the stair lifting device of the first embodiment Top view showing the state of guide rail installation on the stairs Partially cutaway side view showing the lifting body and guide rail The perspective view which shows the positional relationship of a guide rail and a guide roller Sectional view showing the positional relationship between the guide rail and the guide roller The figure explaining the attitude | position of the guide rail and the raising / lowering body in several places of the guide rail which has a linear part and a curved part The figure explaining the support unit which concerns on 2nd Embodiment. The figure explaining the state where the support unit which concerns on 2nd Embodiment is located in the linear part of a guide rail The figure explaining the state in which the support unit which concerns on 2nd Embodiment is located in the curved part of a guide rail. The figure explaining the attitude | position in the guide rail curved part of the support unit which concerns on 2nd Embodiment.

[First Embodiment]
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings, taking as an example the case where the ramp lifting equipment of the present invention is applied to a stair climbing equipment.
FIG. 1 is a side view showing the stair climbing equipment in the present embodiment, and FIG. 2 is a plan view showing the installation state of the guide rail R to the stair SW. As shown in FIG. 1 and FIG. 2, the stair climbing equipment is supported by a guide rail R installed on a stair along a reference line L that is a planned lift trajectory of a lift 3 to be described later, and the guide rail R. And a lifting body 3 that moves up and down by moving along the guide rail R. As shown in FIG. 2, the guide rail R is installed on a staircase having a U-shaped bent portion in plan view, and has a curved portion Rr that is curved in plan view between an upper end portion and a lower end portion. ing. Moreover, the raising / lowering body 3 is provided with the chair part Y, and it is comprised so that the person sitting on the chair part Y between the upper end part and lower end part of staircase SW may be conveyed up and down as a conveyance target body.
As shown in FIGS. 4 and 5, the guide rail R includes a first surface Rm1, a second surface Rm2, a third surface Rm3, a fourth surface Rm4, a fifth surface Rm5, and a sixth surface Rm6 in the circumferential direction. I have.

As shown in FIG. 3, the elevating body 3 includes a support unit U that supports a plurality of guide rollers G that abut on the guide rail R, and a chair portion that is supported by the support unit U via a left-right posture correction mechanism 35. Y, a driving sprocket SP as a driving mechanism K, and a motor M that rotationally drives the driving sprocket SP. The motor M is integrally provided with a speed reducer (not shown) and a brake (not shown). The chair portion Y includes a seat surface 41, a backrest 42, an armrest 43, and a footrest 44, and a direction (curved portion Rr) along a reference line L (shown by a one-dot chain line in FIGS. 1 and 2) of the guide rail R in a plan view. Is attached to the support unit U in a state where the direction orthogonal to the tangential direction of the reference line L is the front.
The armrest 43 is provided with a command input unit (not shown) for inputting a lifting operation command for the lifting body 3, and rotates the motor M based on command information input by a person as a conveyance target body. It is configured to let you.

  The left / right posture correction mechanism 35 includes a swing shaft, an electric swing mechanism, and a horizontal sensor (not shown). Based on the tilt information detected by the horizontal sensor, the longitudinal direction of the guide rail R (in the curved portion Rr). Is tangential direction), and the operation of the swing mechanism is feedback-controlled so that the seat surface 41 of the chair portion Y assumes a horizontal posture.

  As shown in FIG. 4, the support unit U includes an upper frame U11 and a lower frame U12 that support a plurality of guide rollers G, and a joint U13 that connects the upper frame U11 and the lower frame U12. The joint U13 connects the upper frame U11 and the lower frame U12 in a form that does not allow relative position changes, and rotatably supports the drive sprocket SP at an intermediate portion between the upper frame U11 and the lower frame U12. Further, the rotation shaft of the motor M passes through the joint U13 in a state of being separated from the joint U13, and the drive sprocket SP is fixed to the rotation shaft of the motor M so as to be integrally rotatable.

  Of the plurality of surfaces Rm (first surface Rm1 to sixth surface Rm6) formed as a guide roller G in the circumferential direction of the guide rail R, the upper frame U11 is a side that can contact the first surface Rm1. An upper outer side roller 71 as a roller 70, an upper inner side roller 72 as a side roller 70 that can come into contact with the second surface Rm2, and an upper roller 50 that can come into contact with the third surface Rm3 include an upper frame. A pair is provided in the longitudinal direction of the guide rail R in a state where the relative position to U11 does not change.

  Further, the lower frame U12 can contact the fourth surface Rm4 among the plurality of surfaces Rm (first surface Rm1 to sixth surface Rm6) formed as a guide roller G in the circumferential direction of the guide rail R. A lower outer side roller 73 as a side roller 70, a lower inner side roller 74 as a side roller 70 which can be brought into contact with the fifth surface Rm5, and a lower roller 60 which can be brought into contact with the sixth surface Rm6. A pair is provided in the longitudinal direction of the guide rail R in a state where the relative position to the lower frame U12 does not change.

Hereinafter, for convenience, among the pair of guide rollers G in the longitudinal direction of the guide rail R, four of the guide rails R positioned on the upper side of the stairs are front rollers, and four of the guide rollers R on the lower side of the stairs are rear sides. This is called a roller.
Each of the front rollers is attached to the upper frame U11 and the lower frame U12 so as to be in the same position in the longitudinal direction of the guide rail R, and each of the rear rollers is in the same position in the longitudinal direction of the guide rail R. Are attached to the upper frame U11 and the lower frame U12.

As described above, as shown in FIGS. 4 and 5, the guide rail R has the first surface Rm1 to the sixth surface Rm6 and is orthogonal to the reference line L at any location in the longitudinal direction. A cross-sectional shape on a plane (orthogonal plane) is formed in a polygonal shape including a plurality of straight line portions. Specifically, the guide rail R has a rectangular shape in which a cross-sectional shape (hereinafter simply referred to as a cross-sectional shape) in a plane orthogonal to the longitudinal direction (a direction along the reference line) is long in the vertical direction when the aluminum material is extruded. It is formed to become.
Therefore, the guide rail R is formed so that the cross-sectional shape in the orthogonal plane orthogonal to the reference line L is the same at any location in the longitudinal direction.

The guide rail R is formed with a groove portion Rg1 for fitting the lifting chain Ch along the longitudinal direction of the guide rail R on one side of a pair of side surfaces which are long in the cross-sectional shape, and on the other side. A column fixing groove Rg2 for fixing to the lateral beam portion of the column Rp is formed along the longitudinal direction of the guide rail R.
The elevating chain Ch is fitted into the chain groove Rg1 across the both ends of the guide rail R, and does not allow movement in the direction along the chain groove Rg1, and also maintains a constant tension. So that it is fixed at both ends.

  The column Rp is fixed to the tread surface of the staircase and is erected at one end portion in the width direction of the staircase, and is cantilever bent at the upper end portion toward the other end portion in the width direction of the staircase width Is provided. The guide rail R is fixed at a position spaced upward from the tread surface of the stairs SW by being fixed by bolting or the like while the cantilever portion of the column Rp is engaged with the column fixing groove Rg2. In addition, since the guide rail R of this embodiment can be comprised by one, the height (it shows with T in FIG. 1) to the upper end measured from the tread surface of staircase SW vertically upwards shall be 50 cm or less, for example. it can. Thus, the installation space of the guide rail R can be reduced as much as possible.

  As shown in FIGS. 1 and 2, the guide rail R is provided at an end portion on the curving center side in the lateral width direction of the staircase SW in the bent portion of the staircase SW.

  The guide rail R is formed so that the posture of the cross-sectional shape in the orthogonal plane orthogonal to the reference line L at the location is the same in the normal direction view of the orthogonal plane at any location in the longitudinal direction. ing. Therefore, even if each position Rm (1st surface Rm1-6th surface Rm6) of the guide rail R differs in the position in the longitudinal direction of the guide rail R, the position in the normal direction view of the said orthogonal plane does not change. It will be a thing.

  The guide rail R as described above can be produced by processing a rod-like body formed by extruding an aluminum material with a device that further performs bending processing in a three-dimensional direction. As an apparatus for bending in such a three-dimensional direction, for example, a mold formed in a cross-sectional shape in an orthogonal plane is supported so that its posture can be freely changed with all degrees of freedom in the three-dimensional direction, and a guide rail is supported on the mold. There is a device or the like that makes the guide rail that has passed through the mold have a desired curved shape by changing and controlling the posture of the mold while passing R.

  As shown in FIGS. 4 and 5, the elevating body 3 is in a form in which a plurality of the plurality of guide rollers G provided in the support unit U and a plurality of the plurality of surfaces Rm of the guide rail R are in contact with each other. It is configured to move along the guide rail R. FIG. 5 is a diagram showing a positional relationship between the cross-sectional shape of the guide rail R and the guide roller G in an orthogonal plane orthogonal to the reference line L. As shown in FIG. 5, among the plurality of guide rollers G, the upper inner side roller 72 and the lower outer side roller 73 are in contact with the second surface Rm2 and the fourth surface Rm4 of the guide rail R, respectively, and the upper roller 50 Is in contact with the third surface Rm3 of the guide rail R. FIG. 5 shows only one of the front roller and the rear roller, but the same applies to the other roller.

  Further, between the upper outer side roller 71 and the first surface Rm1 of the guide rail R, between the lower inner side roller 74 and the fifth surface Rm5 of the guide rail R, and in the lower roller 60 and the guide rail R. The sixth surface Rm6 is configured to be separated by a predetermined distance. Thereby, when the support unit U reaches the curved portion Rr from the straight portion Rs of the guide rail R (location indicated by P1 in FIG. 6) or when the support unit U reaches the linear portion Rs from the curved portion Rr (location indicated by P2 in FIG. 6). Alternatively, when the support unit U is positioned at the curved portion Rr (location indicated by P3 in FIG. 6), an interval through which the guide roller G can pass in a direction orthogonal to the longitudinal direction of the guide rail R in plan view is ensured. be able to.

In the above configuration, the upper inner side roller 72, the lower outer side roller 73, and the upper roller 50 correspond to a plurality of contact portions in the present invention, and the second surface Rm2 and the third surface Rm3 of the guide rail R are provided. And 4th surface Rm4 is corresponded to the some guide surface with which each of the some contact part in this invention contact | abuts. A plurality of contact points when the upper inner side roller 72, the lower outer side roller 73, and the upper roller 50 are in contact with the second surface Rm2, the third surface Rm3, and the fourth surface Rm4 of the guide rail R. Belongs to an orthogonal plane orthogonal to the reference line L at a corresponding point on the reference line L corresponding to the position of the lifting body 3 even if the position of the lifting body 3 in the longitudinal direction of the guide rail R is different, and Since the positions with respect to the corresponding points are the same, the lifting body 3 in the longitudinal direction of the guide rail R and the chair portion provided in the lifting body 3 at any location in the longitudinal direction of the guide rail R It becomes possible to maintain the posture of Y appropriately.
Strictly speaking, the support unit U is maintained in an intermediate posture between the posture determined by the front roller and the posture determined by the rear roller.

FIG. 6 shows the posture of the lifting body 3 and the chair portion Y included in the lifting body 3 when the lifting body 3 is located at different positions P1, P2, and P3 in the longitudinal direction of the guide rail R. In FIG. 6, a plane P surrounded by a one-dot chain line corresponds to an orthogonal plane of the present invention.
The three arrows X, Y, and Z are unit space vectors in the space where the guide rail R is installed. The Z-axis is taken in the vertical direction, and the direction along the straight portion Rs of the guide rail R in the plan view is taken as the Y axis. The X axis is taken in a direction orthogonal to the Y axis in plan view. The posture of the guide rail R and the lifting body 3 in each orthogonal plane of P1, P2, and P3 is a posture in which the backrest 42 of the chair portion Y is always maintained in a posture along the Z axis, as shown in the respective one-dot chain lines. Thus, the chair portion Y can be restrained from being inclined forward to the front side.
In addition, since the tilt of the chair portion Y in the Y-axis direction can be suppressed by the left-right posture correction mechanism 35 described above, the chair portion Y is guided up and down in a state where the tilt is suppressed in both the left-right direction and the front-rear direction. A person or the like as a conveyance object can be appropriately conveyed up and down.

[Second Embodiment]
Hereinafter, although 2nd Embodiment of this invention is described, in 2nd Embodiment, the guide rail R is the same structure as 1st Embodiment, and only the structure of the support unit U in the raising / lowering body 3 differs. Therefore, the description of the same configuration as that of the first embodiment is omitted, and the configuration of the support unit U will be described.

  As shown in FIGS. 7 to 10, the lifting body 3 of the second embodiment includes two support units U, a first support unit Ua and a second support unit Ub. The first support unit Ua and the second support unit Ub are provided with two rectangular parallelepiped box-shaped frames Uw whose one side surface is open, with the opening portion facing the guide rail R side. Further, a recessed portion Uk into which the guide rail R can be fitted is provided from the opening portion toward the side surface facing the opening portion. The two box-like frames Uw are connected to each other by a turning connection shaft portion Uj1 orthogonal to a pair of side wall portions Ut facing each other in the arrangement direction.

  The rotation connecting shaft portion Uj1 includes a columnar second rotation support shaft Uj2 that intersects the cross at the center in the longitudinal direction. A pair of interlocking elongate bodies Uj3a and Uj3b are fitted to the second rotation support shaft Uj2 so as to be rotatable about the second rotation support shaft Uj2 as a rotation axis, with the rotation connection shaft portion Uj1 being sandwiched therebetween. Are combined. The pair of side wall portions Ut of the two box-shaped frames Uw are provided with insertion holes h through which the end portions of the interlocking long bodies Uj3a and Uj3b are inserted.

  Further, each of the first support unit Ua and the second support unit Ub includes an upper frame U21 that supports the plurality of guide rollers G and a lower frame U22 that supports the plurality of guide rollers G.

Of the plurality of surfaces Rm (first surface Rm1 to sixth surface Rm6) formed as a guide roller G in the circumferential direction of the guide rail R, the upper frame U21 is a side that can contact the first surface Rm1. An upper outer side roller 71 as a roller 70, an upper inner side roller 72 as a side roller 70 that can come into contact with the second surface Rm2, and an upper roller 50 that can come into contact with the third surface Rm3 include an upper frame. A pair is provided in the longitudinal direction of the guide rail R in a state where the relative position with respect to U21 does not change. Here, for convenience, among the pair of guide rollers G in the longitudinal direction of the guide rail R, four positioned on the upper side of the stairs of the guide rail R are the front rollers, and four positioned on the lower side of the stairs of the guide rails R are rear. This is called a side roller.
Each of the front side rollers is attached to the upper frame U11 and the lower frame U12 so as to be in the same position in the longitudinal direction of the guide rail R, and each of the rear side rollers is in the same position in the longitudinal direction of the guide rail R. It is attached to upper frame U11 and lower frame U12.

  Further, the lower frame U22 can contact the fourth surface Rm4 among the plurality of surfaces Rm (first surface Rm1 to sixth surface Rm6) formed as a guide roller G in the circumferential direction of the guide rail R. A lower outer side roller 73 as a side roller 70, a lower inner side roller 74 as a side roller 70 which can be brought into contact with the fifth surface Rm5, and a lower roller 60 which can be brought into contact with the sixth surface Rm6. A pair is provided in the longitudinal direction of the guide rail R in a state where the relative position to the lower frame U22 does not change.

  The upper frame U21 is rotatable about the rotation axis orthogonal to the upper surface plate Uw1 of the box-shaped frame Uw and is rotatable about the rotation axis parallel to the upper surface plate Uw1. It is attached. The lower frame U22 is rotatable about a rotation axis orthogonal to the lower surface plate Uw3 of the box-shaped frame Uw, and is rotatable about a rotation axis parallel to the lower surface plate Uw3. It is attached to Uw3.

Of the first support unit Ua and the second support unit Ub, the motor M and the chair portion Y are attached to the first support unit Ua. Although not shown in the drawings, the chair portion Y is corrected to the left and right postures in the upper part of the first support unit Ua in the form of being bolted to the mounting hole Bh provided in the upper surface plate Uw1 of the first support unit Ua of FIGS. It is attached via a mechanism 35.
Moreover, the motor M and the chair part Y are not attached to the 2nd support unit Ub.
That is, as the elevating body 3, there are provided the elevating body 3 that supports the chair portion Y on the support unit U, and the elevating body 3 that does not support the chair portion Y on the support unit U, and these two elevating bodies 3 rotate. It is connected by a dynamic connecting shaft portion Uj1.

  The elevating body 3 is moved along the guide rail R in such a form that a plurality of the plurality of guide rollers G provided in the support unit U and a plurality of the plurality of surfaces Rm of the guide rail R are in contact with each other. It is configured. 8 and 9, when the lifting body 3 configured as described above is guided by the guide rail R, the contact relationship between the guide roller G and the plurality of surfaces Rm of the guide rail R and the first state at that time The attitude | positions of 1 support unit Ua and 2nd support unit Ub are shown.

  Among the plurality of guide rollers G, the upper and outer side rollers 71 are in contact with the first surface Rm1 of the guide rail R, the upper and inner side rollers 72 are in contact with the second surface Rm2 of the guide rail R, and the upper roller 50 is The lower outer side roller 73 abuts on the fourth surface Rm4 of the guide rail R, the lower inner side roller 74 abuts on the fifth surface Rm5 of the guide rail R, The lower roller 60 is configured to contact the sixth surface Rm6 of the guide rail R. This contact relationship is the same for both the front roller and the rear roller in each of the first support unit Ua and the second support unit Ub.

  In the above configuration, the upper outer side roller 71, the upper inner side roller 72, the lower outer side roller 73, the lower inner side roller 74, the upper roller 50, and the lower roller 60 (that is, all of the guide rollers G) are provided. It corresponds to a plurality of installed portions in the present invention, and the first surface Rm1, the second surface Rm2, the third surface Rm3, the fourth surface Rm4, the fifth surface Rm5, and the sixth surface Rm6 (that is, the guide rail) in the guide rail R. All the surfaces Rm in R) correspond to a plurality of guide surfaces with which each of the plurality of abutting portions in the present invention abuts.

  Strictly speaking, each of the first support unit Ua and the second support unit Ub is maintained in an intermediate position between the attitude determined by the front roller and the attitude determined by the rear roller. .

A plurality of contact points when the guide roller G is in contact with the surface Rm of the guide rail R are reference lines corresponding to the position of the lift 3 even if the position of the lift 3 in the longitudinal direction of the guide rail R is different. Since the corresponding points on L belong to an orthogonal plane orthogonal to the reference line L, and the positions relative to the corresponding points are the same, the first support unit Ua and the second support unit Ub are: The posture with respect to the guide rail R is determined separately.
And since the chair part Y is supported by the 1st support unit Ua of the two support units U, in any place of the longitudinal direction of the guide rail R in the plane orthogonal to the longitudinal direction of the guide rail R It is possible to guide the elevator while maintaining the posture.
Thereby, also in 2nd Embodiment, as shown in FIG. 6, it can suppress appropriately that the chair part Y becomes the attitude | position which leans forward to the front side. In addition, since the tilt of the chair portion Y in the Y-axis direction can be suppressed by the left-right posture correction mechanism 35 described above, the chair portion Y is guided up and down in a state where the tilt is suppressed in both the left-right direction and the front-rear direction. A person or the like as a conveyance object can be appropriately conveyed up and down.

  In addition, the guide roller of 2nd Embodiment is formed smaller in diameter than the guide roller G of 1st Embodiment. This is because the load on the chair portion Y and the motor M can be distributed by the two support units, the first support unit Ua and the second support unit Ub, so that the load to be shared by one guide roller is reduced. For this reason, the space where the upper inner side roller 72 and the lower inner side roller 74 are present between the guide rail R and the end of the staircase SW in a plan view can be reduced, and the guide rail R can be moved to the staircase SW. It can be installed closer to the end.

  FIG. 8 shows a case where the lifting body 3 is located at the straight portion Rs of the guide rail R, and FIG. 9 shows a case where the lifting body 3 is located at the curved portion Rr of the guide rail R. As described above, the postures of the first support unit Ua and the second support unit Ub are individually determined with respect to the guide rail R. However, when the elevating body 3 is positioned on the straight portion Rs of the guide rail R, FIG. As shown in FIG. 8, the first support unit Ua and the second support unit Ub are in the same posture when viewed in the direction along the longitudinal direction of the guide rail R (viewed along the reference line L).

  On the other hand, when the elevating body 3 is located at the curved portion Rr of the guide rail R, as can be seen from FIG. 9, each of the first support unit Ua and the second support unit Ub is in the longitudinal direction of the guide rail R. The box-shaped frame Uw is in a state of rotating relative to each other about the rotation connecting shaft portion Uj1 as the rotation axis because the posture is different in the direction view along the direction (direction view along the reference line L).

At this time, as shown in FIG. 10, when one of the box-shaped frames Uw rotates around the rotation connecting shaft portion Uj1, the interlocking long body whose one end is inserted into the insertion hole h of the box-shaped frame Uw. The Uj3a and the interlocking long body Uj3b are rotated about the second rotation support shaft Uj2 as a rotation axis.
The interlocking elongate body Uj3a and the interlocking elongate body Uj3b are moved and operated in the opposite phase to the direction operated by the box-like frame Uw on one side, so that the interlocking elongate body Uj3a and the interlocking elongate body The other side of the Uj3b and the other side of the box-shaped frame Uw are engaged with the insertion hole h, so that the other side of the box-shaped frame Uw is rotated in a state opposite to the one of the summed box-shaped frame Uw. Thus, the guide rail R can be reliably held in a state in which the guide rail R is fastened by the one box-shaped frame Uw and the other box-shaped frame Uw.
Therefore, in this embodiment, the interlocking connection mechanism is mainly configured by the interlocking long body Uj3a, the interlocking long body Uj3b, the second rotation support shaft Uj2, and the insertion holes h of the two box-shaped frames Uw. Yes.

[Another embodiment]
Hereinafter, another embodiment of the ramp lifting equipment of the present invention will be described.
(1) In the above-described embodiment, the guide rail R is formed so that the cross-sectional shape in the orthogonal plane orthogonal to the reference line is a polygonal shape. However, the configuration is not limited to such a configuration. The cross-sectional shape in the orthogonal plane can be any shape as long as it has a plurality of guide surfaces with which the abutment portion abuts, for example, guides to a part of a pipe whose cross-sectional shape in the orthogonal plane is circular. A cross-sectional shape other than a polygonal shape may be used, such as a groove for forming a groove or an elliptical cross-sectional shape orthogonal to a reference line.

(2) In the first embodiment, the upper inner side roller 72, the lower outer side roller 73, and the upper roller 50 are a plurality of contact portions, and the second surface Rm2 and the third surface Rm3 of the guide rail R are used. And a configuration in which the fourth surface Rm4 is a plurality of guide surfaces with which each of the plurality of abutting portions abuts. In the second embodiment, the upper outer side roller 71, the upper inner side roller 72, The lower outer side roller 73, the lower inner side roller 74, the upper roller 50, and the lower roller 60 (that is, all of the guide rollers G) are a plurality of contact portions, and the first surface Rm1 and the second surface of the guide rail R Rm2, 3rd surface Rm3, 4th surface Rm4, 5th surface Rm5, 6th surface Rm6 (that is, all the surface Rm in the guide rail R) is made into the some guide surface which each of a some contact part contact | abuts. But like this The plurality of contact portions are not limited to the upper and lower side rollers 71, the upper and inner side rollers 72, the lower and outer side rollers 73, the lower and inner side rollers 74, the upper roller 50, and the lower roller. Two, four, and five of 60 may be used, and the guide surfaces may be two, four, and five of the first surface Rm1 to the sixth surface Rm6. Moreover, it is good also as a structure which provides seven or more contact parts as a some contact part, and provides seven or more guide surfaces contact | abutted to the said several contact part as a guide rail Rno guide surface.

(3) In the first and second embodiments, the guide rail R is configured to include the straight portion Rs and the curved portion Rr. However, the guide rail R only needs to include the curved portion Rr. For example, you may comprise the guide rail R as a spiral rail by which all the parts are formed as the curved part Rr.

(4) In the first and second embodiments, the guide rail R is provided at the curved center side end (Si side in FIG. 2) in the lateral width direction of the staircase in the curved portion of the staircase SW. The configuration is not limited to such a configuration, and the guide rail R may be provided at the curved outer side end portion (So side in FIG. 2) in the lateral width direction of the staircase in the curved portion of the staircase SW. Further, when the staircase is crank-shaped, a portion provided at the curved center side end in the lateral width direction of the staircase at the curved portion, and a portion provided at the curved outer side end portion in the lateral width direction of the staircase at the curved portion. It is good also as what has both.

(5) In the first and second embodiments, the right / left posture correction mechanism 35 of the lifting / lowering body 3 includes a swing shaft, an electric swing mechanism, and a horizontal sensor (not shown), and is detected by the horizontal sensor. Although the configuration is such that the operation of the swing mechanism is feedback-controlled so as to correct the tilt, it is not limited to such a configuration. For example, a gyro mechanism is attached to the chair portion Y, or the chair portion Y is disposed below the chair portion Y. A weight body is provided, and the chair portion Y is swingably attached to the support unit U, so that the weight of the weight body maintains the horizontal state of the seat surface 41 of the chair portion Y in the direction along the longitudinal direction of the guide rail R. You may comprise as follows.

(6) In the second embodiment, the interlocking connection mechanism is composed of the rod-like interlocking long body Uj3a and the interlocking long body Uj3b. However, the present invention is not limited to such a configuration. A rack gear is provided in the unit U2 and the support unit U3, and a circular gear that is rotatable with the second rotation support shaft Uj2 as a rotation axis and meshing with the rack gear is attached between the support unit U2 and the support unit U3. By rotating the circular gear, the rack gear of the support unit U2 and the rack gear of the support unit U3 are moved in opposite directions, and the support unit U2 and the support unit U3 are opposite to each other around the rotation connecting shaft portion Uj1. You may comprise so that it may rotate with a phase.

(7) In the second embodiment, the first support unit Ua and the second support unit Ub that are provided with a plurality of abutting portions and configured to determine the posture of the support unit U with respect to the guide rail R separately. However, instead of such a configuration, the interlocking coupling mechanism is not provided, and the first coupling is not provided. The first support unit Ua and the second support unit Ub may be connected by a rotation connection shaft portion Uj1 as a connection portion that is simply rotatable relative to each other.

In this case, the motor M and the chair part Y are attached to the first support unit Ua, which is the side close to the upper end of the staircase, of the first support unit Ua and the second support unit Ub. Specifically, the motor M and the chair portion Y are bolted to the mounting hole Bh formed in the upper surface plate Uw1 of the first support unit Ua. The chair portion Y is attached via a left / right posture correction mechanism 35.
The rotation connecting shaft portion is rotatable around the rotation axis along the guide rail R with the distance in the direction along the guide rail R of the first support unit Ua and the second support unit Ub fixed. Since the first support unit Ua and the second support unit Ub are connected to each other, the posture with respect to the guide rail R is determined for each of the first support unit Ua and the second support unit Ub. Further, since the rotation connecting shaft portion can support the load, the second support unit which is the side close to the lower end portion of the staircase for the load of the motor M and the chair portion Y applied to the first support unit Ua. The load can be distributed by transmitting to the Ub side.

  In this way, since the load is distributed and supported by the first support unit Ua and the second support unit Ub, the load that each guide roller G should share can be reduced. The space between the upper inner side roller 72 and the lower inner side roller 74 between the ends of the staircase SW can be reduced, and the guide rail R can be installed at a position closer to the end of the staircase SW. .

(8) In the first embodiment or the second embodiment, the configuration in which the motor M and the drive sprocket SP are attached to the support unit U as the drive mechanism K is exemplified, but the configuration is not limited to such a configuration. For example, the drive mechanism K may be provided at a place other than the support unit U. As such an example, for example, a traction support unit guided by the guide rail R and provided with the drive mechanism K is provided separately from the support unit U, and the traction support unit is positioned at the upper end of the stairs. It is also conceivable that the traction support unit and the support unit U are connected by a link body with a universal joint or the like, and the support unit U is moved up and down in a form in which the support unit U is pulled by the traction support unit. Also, a motor and a hoisting drum that is rotationally driven by the motor are provided at the upper end of the staircase, and the support unit U is supported in a suspended form from above by a chain or wire, and is supported by the hoisting drive by the motor. The unit U may be driven up and down.

(9) In the said 1st Embodiment or 2nd Embodiment, although the structure provided with the chair part Y in which the person as a conveyance target body sits in the support unit U was illustrated, it is not limited to such a structure. For example, it is good also as a structure provided with the articles | goods mounting part which conveys the articles | goods as a conveyance target body to the support unit U, for example.

(10) In the first embodiment or the second embodiment, as an example of a method for producing the guide rail R, an example in which an aluminum material is extruded and three-dimensionally bent has been described. However, the method for producing the guide rail R is as described above. For example, the rod-shaped body may be produced by a three-dimensional bending process followed by a machining process.
The material of the guide rail R may be a metal other than aluminum (for example, stainless steel) or a material other than a metal such as fiber reinforced plastic (for example, carbon fiber reinforced plastic or hard rubber).

(11) In the first embodiment or the second embodiment, the example in which the guide rail R is installed on the staircase SW has been described. However, the present invention is not limited to such a configuration. For example, the guide rail is arranged along an inclined surface. It may be installed.

3 Lifting body G Contact part L Reference line R Guide rail Rm Guide surface Rr Curved part SW Stair U Support unit Uj1 Rotating connection shaft part

Claims (7)

A guide rail that is installed along a staircase or an inclined path and has a curved portion that is curved in plan view between an upper end portion and a lower end portion, and is supported by the guide rail and moves along the guide rail. A lifting body that moves up and down,
The lifting and lowering device is provided with a plurality of abutting portions that contact a guide surface of the guide rail and determine a posture of the lifting and lowering body with respect to the guide rail,
The guide rail is installed along a reference line set based on a lifting trajectory of the lifting body, and includes a plurality of guide surfaces with which each of the plurality of contact portions abuts as the guide surface,
The plurality of contact portions where the plurality of contact portions contact the plurality of guide surfaces may correspond to the reference position corresponding to the position of the lift body even if the position of the lift body in the longitudinal direction of the guide rail is different. A ramp lifting / lowering facility that belongs to an orthogonal plane orthogonal to the reference line at a corresponding point on a line and is configured to have the same position with respect to the corresponding point.   The guide rail has the same cross-sectional shape in the orthogonal plane perpendicular to the reference line and the posture of the cross-sectional shape in the normal direction view of the orthogonal plane at any location in the longitudinal direction. The ramp raising / lowering equipment according to claim 1, which is configured to become.   The ramp raising / lowering equipment according to claim 2, wherein the guide rail has a polygonal cross-sectional shape in the orthogonal plane.   The ramp as described in any one of Claims 1-3 with which the said guide rail is provided in the curve center side end part in the horizontal width direction of the said staircase or a ramp in the curved part of the said staircase or a ramp. Facility. The elevating body includes a support unit that includes the plurality of contact portions and determines a posture with respect to the guide rail,
The ramp ascending / descending equipment according to any one of claims 1 to 4, wherein a placing portion that places and supports the object to be transported is supported by the support unit. The lifting body includes two support units arranged along the guide rail,
Each of the support units is configured such that each of the support units is provided with the plurality of contact portions, and the posture of each of the support units with respect to the guide rail is determined separately.
A placement unit for placing and supporting the object to be conveyed is supported by one of the two support units,
A rotation connecting shaft portion that rotatably connects the two support units around a rotation shaft along the guide rail;
When one of the two support units rotates around the rotation connecting shaft, the other of the two support units is in a phase opposite to the one rotation direction of the support unit. The ramp ascending / descending equipment according to any one of claims 1 to 4, further comprising an interlocking connection mechanism that interlocks and connects the two support units so as to rotate around the rotation connecting shaft portion. The lifting body includes two support units arranged along the guide rail,
Each of the support units is configured such that each of the support units is provided with the plurality of contact portions, and the posture of each of the support units with respect to the guide rail is determined separately.
One of the two support units, which is close to the upper end of the staircase or ramp, is supported by a lifting drive unit that drives the lifting body up and down and a mounting unit that mounts and supports the transport object. A rotating connecting shaft that connects the two support units so as to be rotatable around a rotating shaft along the guide rail and can support a load while fixing a distance in a direction along the guide rail. The ramp raising / lowering equipment according to any one of claims 1 to 4, wherein a section is provided.

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