JP3885141B1 - Stair walking assistance device - Google Patents

Abstract

An assisting device for walking on stairs that can ensure safety by a simple operation, particularly when going down stairs.
A rail member 11 arranged along a staircase includes a plurality of locking portions 12 along a longitudinal direction thereof, and an auxiliary device 20 includes a gripping member 26 protruding from a device main body 21, and a locking portion 12. Engaging means 30 for restricting the movement of the apparatus main body 21 and release means 40 for releasing the engagement between the locking portion 12 and the engaging means 30. A support portion 32 provided in the apparatus main body 21 and an engagement member 31 having a protrusion 33 that engages with the locking portion 12 at one end are provided. The support portion 32 is caused by its own weight. The engaging member 31 is rotatably supported so that the protruding portion 33 slides along the surface of the rail member 11 and engages with the locking portion 12, and the release means 40 is engaged with the protruding portion 33. A release member 42 that rotates the engagement member 31 so that the engagement with the stopper 12 is released. Equipped and are for stair walking aid device 1.
[Selection] Figure 2

Description

  The present invention relates to an assistance device for stair walking.

  2. Description of the Related Art Conventionally, as a device for preventing a fall accident at the time of raising and lowering a staircase, for example, a lifting device for a handrail as disclosed in the prior art document 1 is known.

  As shown in the perspective view of FIG. 14, the handrail elevating device 100 includes a handrail main body 110 disposed along the stairs and an apparatus main body 120 slidable along the handrail main body 110. Yes. As shown in the front sectional view of FIG. 15, a sawtooth ratchet groove 111 is formed on the lower surface of the handrail body 110. As shown in the side sectional view of FIG. 16, the apparatus main body 120 is a support handle 122 that can be rotated from a state where it rises vertically with respect to the apparatus main body 120 around the horizontal axis 121 to a state where it travels to the staircase side. It has. Further, the apparatus main body 120 includes an engaging member 130 having a ratchet pawl 131 as shown in FIG. As shown in FIG. 17, the engaging member 130 is lifted upward as shown in FIG. 18 by pressing the support handle 122 that has traveled to the staircase side downward to bring it into a horizontal state. The apparatus main body 120 can be fixed to the handrail main body 110 by engaging a ratchet claw 131 with a ratchet groove 111 formed on the lower surface of the main body 110.

  In order to descend the stairs using the handrail lifting device 100 configured as described above, first, the ratchet engagement between the device main body 120 and the handrail main body 110 is released by rotating and pulling up the support handle 122. Then, the apparatus main body 120 is pushed out and lowered along the handrail main body 110 by a desired amount. Next, the support handle 122 is strongly pressed downward to move the engaging element 130 upward, the ratchet pawl 131 is ratchet engaged with the ratchet groove 111 formed on the lower surface of the handrail main body 110, and the apparatus main body 120 is moved by hand. Fix to the sliding body 110. While maintaining this state, the support handle 122 is supported to step down the stairs. By repeating such an operation, it is possible to go down the stairs.

Similarly, when climbing the stairs, the support handle 122 is lifted up, the apparatus main body 120 is pushed out along the handrail main body 110 by a desired amount and moved upward, and then the support handle 122 is pressed down downward. The apparatus main body 120 and the handrail main body 110 are ratchet engaged. While maintaining this state, the user lifts the user's own body with the support handle 122 as a support, and ascends the stairs. By repeating such an operation, the stairs can be climbed.
JP 2002-364142 A

  However, in order to raise and lower stairs using the handrail lifting device as disclosed in Patent Document 1, the user himself pushes out the device body along the handrail body and lowers the support handle downward. It is necessary to fix the device main body and the handrail main body by ratchet engagement by pressing strongly, and not only the operability is bad, but also when the pressing force of the support handle decreases, the relationship between the device main body and the handrail main body There was a problem that the main body of the apparatus would move freely down the stairs along the handrail main body due to its own weight. This causes the balance of the user on the stairs to be lost, and the stairs cannot be raised and lowered safely.

  In particular, when going down the stairs, if the main body of the device moves without permission due to its own weight, the user may fall from the stairs due to the downward movement of the main body of the device.

  The present invention has been made to solve such problems, and it is an object of the present invention to provide an assistance device for stair walking that can ensure safety by a simple operation, particularly when going down stairs.

  The object of the present invention is a stair walking assistance device comprising a rail member arranged along a staircase and an auxiliary device having a device main body movable along the rail member, the rail member comprising: A plurality of locking portions are provided along the longitudinal direction, and the auxiliary device includes a gripping member protruding from the device main body, an engagement means that engages with the locking portion and restricts movement of the device main body, and A release means for releasing the engagement between the locking portion and the engaging means, the engaging means including a support portion provided in the apparatus main body and a protrusion engaging with the locking portion. And an engaging member having one end portion, and the supporting portion engages with the locking portion while the protrusion slides along the surface of the rail member due to its own weight. The engagement member is rotatably supported so that the release hand It is achieved by the projection and the engaging portion and the engaging member stair walking assistance device comprising a release member that rotates the so engagement is released.

  In the stair walking assistance device, the support portion supports the engagement member such that the other end portion of the engagement member is located on the opposite side of the protrusion with the time support portion interposed therebetween, The release means includes a handle portion that is rotatably supported, and the release member rotates integrally with the handle portion to release the engagement between the protrusion and the locking portion. It is preferable to press the other end of the engaging member.

  Further, it is preferable that at least a part of the surface of the rail member between the adjacent locking portions is an inclined surface.

  Moreover, it is preferable to further include a biasing device that biases the auxiliary device upward in a state where the rail member is arranged along the stairs.

  Moreover, it is preferable that the said apparatus main body is formed with the flexible tube which can penetrate the said rail member.

  The rotating device further includes a rotating body that is rotatably supported by the auxiliary device, and the rotating body presses a receiving member disposed along the rail member when a load is applied to the gripping member. At the same time, it is preferable that the device main body is disposed so as to contact and rotate with the movement of the apparatus main body along the rail member.

  Moreover, it is preferable to further provide an auxiliary rail member that slidably supports the distal end portion of the gripping member.

  Moreover, it is preferable that the urging device includes a wire reel that can be rotated by winding a wire, and a spring for urging the wire reel in a winding direction of the wire.

  Moreover, it is preferable that the said apparatus main body is equipped with the roller which contact | abuts to the said rail member and rotates with the movement along the said rail member.

  ADVANTAGE OF THE INVENTION According to this invention, especially when going down stairs, the assistance apparatus for stair walk which can ensure safety | security by simple operation can be provided.

  Hereinafter, the stair walking assistance device of the present invention will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram showing a state in which an assist device for stair walking according to an embodiment of the present invention is arranged along a staircase, FIG. 2 is an enlarged side view of an essential part, FIG. 3 is an enlarged plan view of an essential part, and FIG. Shows a cross-sectional view of FIG. As shown in FIG. 1, the stair walking assistance device 1 includes a rail device 10, an auxiliary device 20, and an urging device 50.

  The rail device 10 includes a rail member 11 and a support member 15. The rail member 11 is a hollow tube having a rectangular cross section arranged along the stairs, and as shown in FIGS. 1 and 2, the rail member 11 includes a plurality of engaging portions 12 along the longitudinal direction on the upper surface thereof. Yes. The horizontal pitch of each locking portion 12 in a state where the rail members 11 are arranged along the stairs is set to match the width of one stairs. Further, as shown in FIG. 1, the surface of the rail member 11 between the adjacent locking portions 12 starts from the lower end portion 12a of the locking portion 12 on the lower side B of the staircase and starts toward the upper side C of the staircase. 11 is configured to be an inclined surface 13 that is inclined outward. The end point of the inclined surface 13 is configured to be the upper end portion 12b of the locking portion 12 on the upper side C of the stairs.

  As shown in FIGS. 1 and 4, the support member 15 includes an arm portion 16 and a fixing portion 17. The arm portion 16 connects the rail member 11 and the fixed portion 17 and has a substantially L-shaped cross section provided along the rail member 11 from one end portion of the rail member 11 to the other end portion. It is a member. The fixing portion 17 is a pedestal for attaching the rail device 10 to the side wall of the staircase.

  As shown in FIGS. 1 and 2, the auxiliary device 20 is engaged with the device main body 21 that can move along the rail member 11, the grip portion 25, and the locking portion 12 to restrict the movement of the device main body 21. A combination means 30 and a release means 40 for releasing the engagement between the locking portion 12 and the engagement means 30 are provided.

  As shown in FIG. 4, the apparatus main body 21 is a hollow tube having a substantially rectangular cross section. The apparatus main body 21 is installed with the rail member 11 inserted therein. A slit 22 that avoids interference with the arm portion 16 is formed along the arm portion 16 on the bottom wall of the apparatus main body 21.

  The grip portion 25 is attached to the side surface of the apparatus main body 21 and includes a grip member 26 and an attachment section 27 that protrude from the apparatus main body 21 as shown in FIG. The grip member 26 is a rod-shaped member having a circular cross section that is gripped by the user and supports the user's own body. The attachment portion 27 is a member for fixing the gripping member 26 to the apparatus main body 21, and a rotation mechanism 28 is provided so that the gripping member 26 can be folded along the rail member 11. Further, the attachment portion 27 includes a lock mechanism (not shown) so that the gripping member 26 can be maintained in a state of protruding from the apparatus main body 21.

  As shown in FIG. 2, the engaging means 30 is provided on the upper portion of the apparatus main body 21 and includes an engaging member 31 and a support portion 32. The engaging member 31 is a member that extends in a direction along the rail member 11, and includes a protrusion 33 that engages with the locking portion 12 at one end. The support portion 32 is a member that rotatably supports the engagement member 31, and is attached to the upper portion of the apparatus main body 21. The support portion 32 supports the engagement member 31 such that the protrusion 33 slides along the surface of the rail member 11 and engages with the locking portion 12 due to its own weight. Further, the support portion 32 supports the engagement member 31 so that the other end portion 34 of the engagement member 31 is located on the opposite side of the protrusion 33 with the support portion 32 interposed therebetween.

  The releasing means 40 is arranged at the upper part of the apparatus main body 21 so as to be on the upper side C of the staircase with respect to the engaging means 30 when the assisting device 1 for stair walking is arranged along the staircase. The release means 40 includes a handle portion 41 that is rotatably supported, and a plate-like release member 42 that is fixed to the shaft of the handle portion 41 and rotates integrally with the handle portion 41. The release member 42 rotates with the rotation of the handle portion 41, thereby pressing the other end portion 34 of the engagement member 31 and jumping up the protrusion 33 upward, thereby the protrusion 33 and the locking portion 12. The length of the engaging member 31 is set so that the pressing of the other end 34 of the engaging member 31 can be automatically released with the progress of the rotation.

  When the engagement between the auxiliary device 20 and the rail member 11 is released in a state where the rail member 11 is arranged along the stairs, the urging device 50 moves the auxiliary device 20 vigorously to the lower side B of the stairs. In order to prevent this, the auxiliary device 20 is urged upward (upward side C of the staircase), and includes a pulley 51, a weight member 52, and a wire 53 as shown in FIG. The pulley 51 is a double pulley including a first pulley portion 51a and a second pulley portion 51b. The ratio of the shaft diameters of the first pulley portion 51a and the second pulley portion 51b is, for example, 2 to 1. It is configured as follows. One end of the wire 53 wound around the first pulley portion 51a is connected to the apparatus body 21 of the auxiliary device 20, and one end of the wire 53 wound around the second pulley portion 51b is connected to the weight member 52. is doing. The pulley 51 is above the upper end of the rail member 11, and when the auxiliary device 20 connected to the wire 53 of the first pulley portion 51 a moves between the upper end and the lower end of the rail member 11, The weight member 52 connected to the wire 53 of the pulley portion 51b is attached to an arbitrary position where it can move up and down without interfering with the floor or the pulley 51. Further, the weight of the weight member 52 is set so that the auxiliary device 20 can move to the lower side B of the stairs along the rail member 11 at a moderate speed due to its own weight.

  Next, a method of using the stair walking assistance device 1 according to the present embodiment will be described. First, the case of going down the stairs using the stairs walking assistance device 1 will be described with reference to FIGS. First, the user stands in front of the auxiliary device 20 attached to the rail device 10 arranged along the stairs, and the gripping member 26 accommodated in a state along the rail member 11 is substantially horizontal to the stairs side. Rotate so that it projects into Next, the rotation of the gripping member 26 is locked by operating a lock mechanism (not shown) so that the gripping member 26 does not rotate from the state of protruding substantially horizontally to the staircase side. When performing this operation, since the engaging means 30 of the auxiliary device 20 is engaged with the locking portion 12 provided on the rail member 11, the auxiliary device 20 moves to the lower side B of the stairs. There is no.

  Next, the user stands on the upper side C of the gripping member 26 while facing the lower stairs side B, and grips the gripping member 26 with one hand (in FIG. 5, grips the gripping member 26 with the right hand). ). Then, the handle portion 41 of the release means 40 is held with the other hand (in FIG. 5, the handle portion 41 is held with the left hand), and the release member 42 presses the other end portion 34 of the engagement member 31. The handle 41 is rotated in the direction indicated by the arrow D.

  As a result of this operation, as shown in FIG. 6, the end of the engaging member 31 provided with the protrusion 33 is flipped upward, and the engagement between the protrusion 33 and the locking portion 12 is released. . When the engagement between the projecting portion 33 and the locking portion 12 is released, the auxiliary device 20 slides on the rail member 11 by its own weight and automatically moves to the stairs lower side B.

  Further, as the release member 42 rotates, the pressing by the release member 42 against the other end 34 of the engagement member 31 is automatically released as shown in FIG. As a result, the protrusion 33 provided at the end of the engagement member 31 moves downward about the support portion 32 due to the weight of the engagement member 31 and comes into contact with the surface of the rail member 11. And the protrusion 33 slides along the surface (inclined surface 13) of the rail member 11 with the descending movement of the auxiliary device 20, and is disposed below one of the engaging portions 12 that has been disengaged. The engaging portion 12 is engaged. Thereby, the downward movement of the auxiliary device 20 is restricted.

  Further, when the auxiliary device 20 moves to the stairs lower side B, the auxiliary device 20 is urged toward the stairs upper side C by the urging device 50, so that the auxiliary device 20 moves downward. Will move slowly and smoothly.

  As the auxiliary device 20 descends, the user goes down the stairs by supporting the gripping member 26. By repeating this series of operations, the user can safely go down the stairs.

  As described above, the assisting device 1 for stair walking according to the present embodiment releases the engagement between the auxiliary device 20 and the rail member 11 by a simple operation of rotating the handle portion 41 of the release means 40, and assists. Since the device 20 can be automatically moved to the stairs lower side B by its own weight, it is not necessary for the user to push out the auxiliary device 20 and move it to the stairs lower side B as in the prior art. Operability can be improved. In addition, since the auxiliary device 20 is reliably engaged with the locking portion 12 disposed below the locking portion 12 that has been disengaged, the user can hold the grip provided on the auxiliary device 20. The member 26 can be supported to safely go down the stairs.

  In addition, since the auxiliary device 20 is automatically moved to the lower side B of the stairs and engaged with the rail member 11 by the release operation of the release means 40, the user can surely move the stairs step by step. It is possible to get off, and the safety when the stairs are lowered can be further enhanced.

  Further, when the engagement between the auxiliary device 20 and the rail member 11 is released, as shown in FIG. 5, the handle portion 41 is rotated so that the tip of the handle portion 41 is tilted in the user's moving direction (downward direction). Therefore, the user can always perform the release operation in the direction of travel. As a result, the user can go down the stairs smoothly and safely.

  Further, since the auxiliary device 20 is urged toward the upper side C of the stairs by the urging device 50, the lower side of the stairs of the auxiliary device 20 after the engagement between the auxiliary device 20 and the rail member 11 is released. The movement to B becomes a smooth movement at a slow speed. As a result, the user can go down the stairs at an unreasonable pace, and the user can safely go down the stairs without being disturbed by the lowering movement of the auxiliary device 20. be able to.

  Moreover, since the holding member 26 protrudes substantially horizontally to the staircase side, the user can go down the stairs with the front of the user's body always facing the lower side of the stairs. Thereby, the user can stably support his / her body, and can prevent a fall or fall on the stairs. Further, even if the user loses balance and is about to fall down to the lower side B of the stairs, the gripping member 26 protruding toward the stairs side receives the user's body and ensures that the user falls down. Can be prevented.

  Next, the case where the stairs are climbed using the stairs walking assistance device 1 according to the present embodiment will be described with reference to FIGS. As in the case of going down the stairs, first, the user stands in front of the auxiliary device 20 attached to the rail device 10 and holds the gripping member 26 so that the gripping member 26 protrudes substantially horizontally to the stairs side. The member 26 is rotated. Next, the rotation of the gripping member 26 is locked by operating a lock mechanism (not shown) so that the gripping member 26 does not rotate from the state of protruding substantially horizontally to the staircase side. In performing this operation, as shown in FIG. 9, since the engaging means 30 of the auxiliary device 20 is engaged with the locking portion 12 provided on the rail member 11, the auxiliary device 20 is stepped. There is no movement to the lower side B.

  Next, the user stands on the stairs lower side B of the gripping member 26 while facing the stairs upper side C, and grips the gripping member 26 with both hands or one hand. Then, the auxiliary device 20 is moved to the upper side C of the staircase by pushing the gripping member 26 to the upper side C of the staircase. At this time, since the auxiliary device 20 is urged toward the stair ascending direction by the urging device 50, the user can easily move the auxiliary device 20 to the upper side C of the stairs with a light force.

  As the auxiliary device 20 moves, the protrusion 33 provided at the end of the engaging member 31 moves while contacting the surface (inclined surface 13) of the rail member 11 as shown in FIG. The rail member 11 is provided with a plurality of locking portions 12 along the longitudinal direction thereof, and between each locking portion 12, the lower side 12a of the locking portion 12 on the lower side B of the staircase and the upper side of the staircase. An inclined surface 13 that is inclined toward the upper end portion 12b of the C locking portion 12 is formed. Accordingly, the auxiliary device 20 can be moved to the upper side C of the staircase without the protrusion 33 of the engaging member 31 being caught by the locking portion 12 on the upper side of the staircase.

  And as shown in FIG. 11, after moving the auxiliary | assistant apparatus 20 with respect to the latching | locking part 12 of the stairs upper side C so that the protrusion 33 may become a stairs upper side, the force which has pushed the holding member 26 is used. By once loosening, it is confirmed that the engaging member 31 of the auxiliary device 20 and the engaging portion 12 of the rail member 11 are engaged, and the auxiliary device 20 does not move to the lower side B of the stairs. Thereafter, the user climbs the stairs one step up as the user's own body is pulled up with the gripping member 26 as a support. By repeating such an operation, the user climbs the stairs.

  As described above, the assisting device 1 for stair walking according to the present embodiment allows the engaging member 31 of the auxiliary device 20 and the rail to be moved only by a simple operation of pushing the gripping member 26 to the upper side C of the staircase and moving the auxiliary device 20. Since the engaging portion 12 of the member 11 is engaged and the auxiliary device 20 can be restricted from moving to the lower side B of the stairs by its own weight, the operability of the auxiliary device 20 can be improved. Further, since the auxiliary device 20 is reliably restricted from moving to the lower side B of the stairs by the locking portion 12, the user can safely climb the stairs while supporting the gripping member 26 provided on the auxiliary device 20. Can continue.

  Further, since the auxiliary device 20 is moved upward by one step of the stairs, the engaging member 31 is engaged with the locking portion 12, and the auxiliary device 20 can be restricted from moving to the lower side B of the stairs. The user can reliably climb the stairs one step at a time, and can further improve safety when the stairs are raised.

  As mentioned above, although one Embodiment of this invention was described, the specific aspect of this invention is not limited to the said embodiment. For example, as shown in FIG. 12, the rail member 11 and the apparatus main body 21 may be constituted by a hollow tube having a substantially circular cross section.

  In the present embodiment, the release means 40 rotates the engagement member 31 by pressing the other end 34 of the engagement member 31 with the release member 42, so that the protrusion 33, the locking portion 12, However, the present invention is not particularly limited to such a configuration. For example, the engagement member 31 provided with the protrusion 33 is engaged so that the end side is directly jumped up. You may employ | adopt the structure which rotates the member 31 and the engagement with the protrusion 33 and the latching | locking part 12 is cancelled | released.

  Moreover, in this embodiment, the structure which the latching | locking part 12 and the engaging means 30 of the auxiliary | assistant apparatus 20 engage is employ | adopted in the upper surface side of the rail member 11, For example, the lower surface side of the rail member 11 is employ | adopted. In the above configuration, the engaging portion 12 and the engaging means 30 may be engaged.

  Moreover, in this embodiment, as shown in FIG. 1, between the adjacent latching | locking parts 12, the surface of the rail member 11 is from the lower end part 12a of the latching | locking part 12 of the staircase lower side B to stairway upper side C. Although it is comprised so that it may become the inclined surface 13 which inclines toward the upper end part 12b of the latching | locking part 12, as shown in FIG. 13, for example, one surface of the rail member 11 between the adjacent latching | locking parts 12 is shown. The part may be configured to be the inclined surface 13.

  Further, in the present embodiment, the urging force of the urging device 50 with respect to the auxiliary device 20 is such that the auxiliary device 20 can move to the lower side B of the stairs along the rail member 11 at a moderate speed due to its own weight. Although it is set, it is not particularly limited to such a configuration. For example, the auxiliary device 20 can be automatically moved to the upper side C of the staircase by changing the weight of the weight member 52 or the like. The biasing force can also be set. With such a configuration, when the user climbs the stairs, the urging force of the urging device 50 works to raise the user to the upper side C of the stairs, so that the user can easily climb the stairs. In addition, when employ | adopting such a structure, it is preferable to provide the stopper mechanism which controls the upward movement of the auxiliary | assistant apparatus 20 in the step lower side edge part of the rail member 11. FIG.

  Moreover, in this embodiment, you may comprise so that the apparatus main body 21 of the auxiliary | assistant apparatus 20 may be formed with a flexible tube, and the rail member 11 can be penetrated. As a flexible tube, in addition to a material having a bending property due to the characteristics of the material itself, a material that does not have a material bending property so much but that has been processed to have a bending property is also included. Examples of the flexible tube having a bending characteristic depending on the characteristics of the material itself include a hollow tube formed of a synthetic resin, and examples of the flexible tube having a bending characteristic by processing include stainless steel. A bellows-like hollow tube made of metal can be exemplified. With such a configuration, for example, as shown in FIG. 19, the rail member 11 is arranged on the wall of a rotating staircase of a type in which the direction of the rail member 11 moves up and down between the upper and lower floors by 180 degrees. Even if it is a shape which has a part, since the apparatus main body 21 in which the said rail member 11 is penetrated deform | transforms according to the linear part shape and curved part shape of the rail member 11, the auxiliary | assistant apparatus 20 is a rail which has a curved part. It is possible to prevent the auxiliary device 20 from moving along the rail member 11 by preventing the member 11 from being caught in the middle.

  In order to prevent an excessive load load from being generated on the auxiliary device 20 and the rail device 10 when the user moves up and down the stairs while supporting the gripping member 26, for example, FIG. As shown in FIG. 20, a configuration further including a rotating body 62 that is rotatably supported by the auxiliary device 20 may be adopted. The rotating body 62 is rotatably attached to a lower end portion of a bracket 61 that is connected to the lower portion of the apparatus main body 21 and extends downward. The rotating body 62 presses the side wall W <b> 1 arranged along the rail member 11 when a downward load is applied to the gripping member 26, and the side wall accompanying the movement of the apparatus main body 21 along the rail member 11. It arrange | positions so that it may contact | abut to W1 and may rotate. With such a configuration, a part of the load acting on the gripping member 26 when the user moves up and down the stairs while supporting the gripping member 26 is received at the contact portion between the rotating body 62 and the side wall W1 of the stairs. Therefore, it is possible to reduce the load applied to the attachment portion 27 of the gripping member 26, the connection portion between the fixing portion 17 and the side wall W1 of the staircase, the contact portion between the apparatus main body 21 and the rail member 11, and the like. It is possible to effectively prevent the occurrence of damage such as deformation and breakage at these locations.

  Further, the rotating body 62 rotates while contacting the side wall W1 of the staircase as the apparatus main body 21 moves along the rail member 11, so that the auxiliary apparatus 20 along the rail member 11 can be smoothly moved. be able to.

  In FIG. 20, a configuration in which the bracket 61 including the rotating body 62 is attached to the lower portion of the apparatus main body 21 is employed. However, for example, a configuration in which the bracket 61 is attached to the gripping member 26 may be employed.

  In FIG. 20, the side wall W <b> 1 of the staircase receives a part of the load acting on the gripping member 26 and rotates while the rotating body 62 comes into contact with the movement of the apparatus main body 21 along the rail member 11. Although functioning as a receiving member, for example, when a flat plate arranged along the rail member 11 is separately provided, the rotating body 62 is used as the receiving member by using the flat plate as the receiving member. When a load is applied to the plate, the flat plate (receiving member) arranged along the rail member 11 is pressed, and the flat plate (receiving member) is brought into contact with the movement of the apparatus main body 21 along the rail member 11. It is also possible to arrange the rotating body 62 so as to rotate.

  Further, as shown in FIG. 21, when there are side walls W1, W2 on both sides of the staircase, an auxiliary rail member 65 arranged on the side wall W2 opposite to the side wall W1 on which the rail member 11 is arranged is further provided, As the auxiliary device 20 moves along the rail member 11, it is possible to adopt a configuration in which the tip end portion of the gripping member 26 is slidably supported by the auxiliary rail member 65. With such a configuration, since the reinforcing rail member 65 receives a part of the load acting on the gripping member 26 when the user moves up and down the stairs while supporting the gripping member 26, the auxiliary device 20 and the rail The load applied to the apparatus 10 is reduced, and it is possible to effectively prevent the occurrence of breakage such as deformation.

  In FIG. 21, the auxiliary rail member 65 is attached to the side wall W2 facing the side wall W1 on which the rail member 11 is disposed. However, the attachment position of the auxiliary rail member 65 is not particularly limited. The auxiliary rail member 65 may be attached to a plurality of rod-shaped support members extending upward from the surface.

  Further, in the present embodiment, as shown in FIG. 4, the apparatus main body 21 is configured by a single hollow tube having a substantially rectangular cross section, but is not particularly limited to such a configuration. As shown in FIG. 22, the apparatus main body 21 may be constituted by a double-structure hollow tube in which a hollow space 21b having a substantially circular cross section is integrally attached to a hollow tube 21a having a substantially rectangular cross section. . By adopting such a configuration, the strength of the apparatus main body 21 can be further increased.

  Moreover, in this embodiment, as shown in FIG. 1, although the structure provided with the pulley 51, the weight member 52, and the wire 53 is employ | adopted as the urging | biasing apparatus 50, it is not specifically limited to such a structure. Absent. For example, as shown in FIGS. 23 and 24, the urging device 50 may include a wire reel 81, a mainspring reel 82, a rotating shaft 83, and a support base 84. Here, FIG. 24A is a front view of the urging device 50, and FIG. 24B is an EE cross-sectional view thereof. The wire reel 81 is a reel around which the wire 53 is wound, and the mainspring reel 82 is a reel including a mainspring spring 82b inside the casing 82a. The wire reel 81 and the mainspring reel 82 are connected via a single rotating shaft 83. The rotation shaft 83 is fixedly connected to the wire reel 81 and is configured such that the wire reel 81 can rotate as the rotation shaft 83 rotates. The rotating shaft 83 is connected to the mainspring reel 82 via a bearing 85 so as to be rotatable. One end of the spring spring 82b accommodated in the casing 82a of the mainspring reel 82 is fixed to the rotating shaft 83, and the other end is fixed to the casing 82a. The spring spring 82 b is accommodated in the casing 82 a so that the wire reel 81 can be urged in the winding direction of the wire 53 via the rotation shaft 83. The support base 84 supports both ends of the rotary shaft 83 so as to be rotatable via bearings 86, and fixes the casing 82 a of the mainspring reel 82 via fixing members 87. As shown in FIG. 23, the urging device 50 configured in this way is attached to the upper end of the rail member 11 on the upper side of the staircase, and one end of the wire 53 wound around the wire reel 81 is connected to the device main body 21. Attached to. Thus, the urging device 50 can be made compact by configuring the urging device 53 with the wire reel 81, the mainspring reel 82, the rotating shaft 83 and the support base 84. The urging device 50 may be attached to the apparatus main body 21 and one end of the wire 53 may be attached to the upper end of the rail member 11 on the staircase.

  Further, as shown in the sectional view of FIG. 25A and the enlarged sectional view of the main part of FIG. 25B, the apparatus main body 21 rotates while contacting the rail member 11 as it moves along the rail member 11. A configuration that further includes the roller 90 may be adopted. With such a configuration, the apparatus main body 21 can be moved more smoothly along the rail member 11. In FIG. 25, a C-shaped storage section 91 having an opening 23 b is formed on the inner surface 23 a of the apparatus body side section 23, and the spherically formed roller 90 is stored in the storage section 91. Further, the shape of the accommodating portion or the size of the roller 90 is set such that a part of the surface of the roller 90 accommodated in the accommodating portion 91 slightly protrudes from the inner surface 23a of the apparatus main body side portion 23 through the opening 23b. Is set. The shape of the roller 90 is not limited to a spherical shape. For example, the roller 90 may be formed in a cylindrical shape. In this case, as the apparatus main body 21 moves along the rail member 11, the installation posture of the roller 90 is set so that the outer peripheral surface of the cylinder can rotate while contacting the rail member 11.

  Further, in the present embodiment, as shown in FIG. 2, the protrusion 33 of the engaging member 31 is configured to be arranged on the lower side B of the staircase of the auxiliary device 20. As shown, a configuration in which the protrusion 33 is arranged on the upper side C of the auxiliary device 20 may be employed.

  Various shapes can be employed for the cross-sectional shape of the rail member 11 and the shape of the protrusion 33 of the engaging member 31. For example, as shown in the cross-sectional view of FIG. 27, the cross-sectional shape of the rail member 11 is a combination of a rectangular shape and a keyhole shape, and the protrusion 33 of the engaging member 31 has a keyhole-shaped portion 11a as viewed in cross section of the rail member 11. The protrusion 33 may have a bifurcated shape so as to sandwich the pin. In FIG. 27, the locking portion 12 of the rail member 11 that engages with the protrusion 33 is formed on the upper surface of the rectangular portion 11 b in a cross-sectional view of the rail member 11. In addition, the receiving member 95 is disposed along the rail member 11, and the rotating body 62 is attached to the shaft 96 extending in the horizontal direction from the side surface of the main body 21 of the auxiliary device 20 so as to be rotatable, and a load is applied to the gripping member 26. When added, the outer peripheral surface 62 a of the rotating body 62 presses the overhanging portion 95 a of the receiving member 95, and moves to the overhanging portion 95 a of the receiving member 95 along with the movement of the apparatus main body 21 along the rail member 11. It is configured to rotate in contact.

It is a schematic block diagram which shows the state which has arrange | positioned the assistance apparatus for stairs walking concerning one Embodiment of this invention along the stairs. It is a principal part enlarged side view of the assistance apparatus for stair walking shown in FIG. It is a principal part enlarged plan view of the assistance apparatus for stair walking shown in FIG. It is AA sectional drawing of FIG. It is the schematic explaining the usage method of the assistance apparatus for stair walking shown in FIG. It is explanatory drawing explaining the action | operation of the auxiliary | assistant apparatus which comprises the assistance apparatus for stair walking shown in FIG. It is explanatory drawing explaining the action | operation of the auxiliary | assistant apparatus which comprises the assistance apparatus for stair walking shown in FIG. It is the schematic explaining the usage method of the assistance apparatus for stair walking shown in FIG. It is explanatory drawing explaining the action | operation of the auxiliary | assistant apparatus which comprises the assistance apparatus for stair walking shown in FIG. It is explanatory drawing explaining the action | operation of the auxiliary | assistant apparatus which comprises the assistance apparatus for stair walking shown in FIG. It is explanatory drawing explaining the action | operation of the auxiliary | assistant apparatus which comprises the assistance apparatus for stair walking shown in FIG. It is sectional drawing which shows the other Example of the assistance apparatus for stair walking based on this invention. It is the schematic which shows the other modification of the rail member which comprises the assistance apparatus for stair walking based on this invention. It is a perspective view which shows the conventional raising / lowering apparatus for handrails. It is front sectional drawing of the raising / lowering apparatus for handrail shown in FIG. It is side surface sectional drawing of the raising / lowering apparatus for handrail shown in FIG. It is side surface sectional drawing at the time of use of the raising / lowering apparatus for handrail shown in FIG. It is front sectional drawing at the time of use of the raising / lowering apparatus for handrail shown in FIG. It is explanatory drawing explaining the action | operation of the other Example of the assistance apparatus for stair walking based on this invention. It is the schematic which shows the other Example of the assistance apparatus for stair walking based on this invention. It is the schematic which shows the other Example of the assistance apparatus for stair walking based on this invention. It is the schematic which shows the other Example of the assistance apparatus for stair walking based on this invention. It is the schematic which shows the assistance apparatus for stair walking provided with the modification of the urging | biasing apparatus shown in FIG. It is the (a) front view and (b) EE sectional view which show the urging device shown in FIG. It is the schematic which shows the other Example of the assistance apparatus for stair walking based on this invention. It is the schematic which shows the other Example of the assistance apparatus for stair walking based on this invention. It is the schematic which shows the other Example of the assistance apparatus for stair walking based on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stairs walking assistance device 11 Rail member 12 Locking part 20 Auxiliary device 26 Gripping member 30 Engaging means 31 Engaging member 32 Supporting part 33 Protruding part 40 Release means

Claims (9)

An assisting device for stair walking comprising a rail member arranged along the stairs and an auxiliary device having a device main body movable along the rail member,
The rail member includes a plurality of locking portions along its longitudinal direction,
The auxiliary device includes a gripping member that protrudes from the device main body, an engagement means that engages with the locking portion to restrict movement of the device main body, and an engagement between the locking portion and the engagement means. Has a release means to release
The engagement means includes a support portion provided in the apparatus main body, and an engagement member having a protrusion engaging with the locking portion at one end.
The support portion rotatably supports the engagement member such that the protrusion slides along the surface of the rail member and engages with the locking portion by its own weight. And
The stepping assistance device includes a release member that rotates the engagement member so that the engagement between the protrusion and the locking portion is released. The support portion supports the engagement member such that the other end portion of the engagement member is located on the opposite side of the protrusion with the support portion interposed therebetween.
The release means includes a handle portion that is rotatably supported,
The said release member rotates integrally with the said handle part, The other end part of the said engagement member is pressed so that engagement with the said protrusion and the said latching | locking part may be cancelled | released. Assistance device for walking stairs.   The assisting device for stair walking according to claim 1 or 2, wherein at least a part of the surface of the rail member between the adjacent locking portions is an inclined surface.   The assisting device for stair walking according to any one of claims 1 to 3, further comprising a biasing device that biases the auxiliary device upward in a state where the rail member is disposed along the staircase.   The stair walking assistance device according to any one of claims 1 to 4, wherein the device main body is formed of a flexible tube through which the rail member can be inserted. A rotating body rotatably supported by the auxiliary device;
The rotating body presses a receiving member disposed along the rail member when a load is applied to the gripping member, and the moving body moves to the receiving member along with the movement of the apparatus main body along the rail member. The assisting device for stair walking according to any one of claims 1 to 5, which is arranged so as to contact and rotate.   The assisting device for stair walking according to any one of claims 1 to 6, further comprising an auxiliary rail member that slidably supports the distal end portion of the gripping member.   The assist device for stair walking according to claim 4, wherein the urging device includes a wire reel that can be rotated by winding a wire, and a spring for urging the wire reel in a winding direction of the wire. The assist device for stair walking according to any one of claims 1 to 8, wherein the device main body includes a roller that rotates in contact with the rail member as the rail moves along the rail member.

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