JP3189035U - Stair lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stair elevating device which can be easily used even by a user who has restrictions on physical movement such as an elderly person or a handicapped person. SOLUTION: A stair elevating device 1 includes a rail 3, a transfer body 4 mounted on the rail 3, and a drive means 5 for moving the transfer body 4. The transfer body 4 is attached to the base portion 7 mounted on the rail 3, the seat portion 8 provided on the base portion 7, and the base portion 7 so as to be able to rotate between the footrest position and the storage position. The footrest base portion 9 is provided. The transfer body 4 includes an electric rotating device 10 that can rotate and displace the footrest base 9, and a human sensor 11 that detects a person in front of the front, and the footrest 9 is in the storage position. When the human sensor 11 detects a person in this state, the electric rotating device 10 automatically rotates the footrest base 9 to the footrest position, and when the human sensor 11 no longer detects a person, the electric rotating device 10 Automatically rotates the footrest base 9 to the storage position. [Selection diagram] Fig. 2

Description

  The present invention relates to a stair lifting device that can sit up and down on a transfer body.

Conventionally, for example, Patent Document 1 discloses a stair lifting device that allows a user seated on a chair-shaped transfer body to be transported from the lower floor to the upper floor and, conversely, from the upper floor to the lower floor.
This stair lift device is roughly configured from a rail provided along a staircase, a transfer body movably mounted on the rail, and drive means for moving the transfer body on the rail.
The transfer body can rotate between a base part movably mounted on the rail, a seat part provided on the base part, a substantially horizontal footrest position, and a substantially vertical storage position. And a plate-like footrest portion pivotally attached to the base portion, so that the footrest portion automatically rotates to the stowed position when the user gets off the seat of the transfer body. It has become.

JP 57-4874 A

The conventional stair lift device is superior in that the footrest base portion automatically rotates to the storage position, and the footrest base portion is unlikely to obstruct a person who normally goes up and down the staircase.
However, when trying to get on the stair lifting device, the footrest is always in the stowed position, so it is difficult to rotate the footrest due to restrictions on the body movements of the elderly and the disabled. In some cases, it was inconvenient.

  The present invention has been made in view of the above, and an object of the present invention is to provide a stair lifting device that can be used easily even by a user such as an elderly person or a handicapped person who is restricted in movement of the body.

In order to achieve the above object, the present invention as described in claim 1,
Rails along the stairs,
A transfer body movably mounted on the rail;
Driving means for moving the transfer body on the rail, and
The transfer body is
A base portion movably mounted on the rail;
A seat provided on the base,
A stair lift device comprising a footrest base portion attached to the base portion so as to be pivotable to a substantially horizontal footrest position and a substantially vertical storage position,
The transfer body is
An electric rotating device capable of rotating and moving the footrest base portion between the footrest position and the storage position;
A human sensor that detects that there is a person in front of the front of the seat,
When the human sensor detects a person in a state where the footrest base is in the storage position, the electric rotating device is activated to automatically rotate the footrest base to the footrest position, and In this state, when the human sensor no longer detects a person, the electric rotating device is activated to automatically rotate the footrest base portion to the storage position.

Further, as described in claim 2,
The transfer body is
An armrest is provided on at least the side of the seat that faces the lower part of the staircase, and a device box is provided on the lower side of the armrest so as to protrude forward from the front of the base,
The stair lift device according to claim 1, wherein the electric rotating device that rotates and displaces the footrest base portion is incorporated inside the device box.

  In addition, as described in claim 3, the transfer body includes a backrest at a rear edge of the seat portion, and the human sensor is provided on a lower front surface of the backrest. Or the stair-climbing apparatus of 2 description is provided.

The stair lifting device of the present invention is such that when the human sensor detects a user in front of the front, the footrest is automatically rotated to the footrest position, and when the human sensor no longer detects the user, the footrest is Because the foot part automatically rotates to the stowed position, there is no risk that the footrest base part will be left in the footrest position during standby, and the footrest base part automatically rotates to the footrest position when you want to ride. In particular, it can be used comfortably and comfortably even for users who have restrictions on hand movements.
Therefore, since the elderly can move freely in the multi-story residences on the second floor or higher, it can contribute to the active participation of the elderly etc. through the activation of activities and the improvement of motivation to go out.

  Further, according to the stair lifting device according to claim 2, the device box is arranged so as to protrude in front of the base portion and on the side facing the low part of the staircase, and the footrest is placed inside the device box. Since the electric rotating device that rotates and displaces the portion is incorporated, the electric rotating device can be arranged without difficulty while performing a guard function that prevents the foot placed on the footrest from being removed.

  Further, according to the stair lifting device of the third aspect, since the human sensor is provided on the lower front surface of the backrest, it is possible to reliably detect the user sitting on the seat.

It is a front view of the stair lifting device which shows the state installed in the stairs. It is a side view of the stair lifting device as seen from the lower side of the stair. It is a side view of the stair lifting device as seen from the high side of the stair. It is a side view of the stair lifting device as seen from the high side of the staircase showing a state where the footrest is rotated to the storage position. It is a perspective view which shows a part of link mechanism of the electric rotating apparatus containing an AA line expanded sectional view. It is a diagram which shows the link mechanism of an electric rotating apparatus.

  Embodiments of the present invention will be described below with reference to the drawings.

  The stair lifting device 1 includes, for example, a long rail 3 provided along a staircase 2 leading from the first floor to the second floor, a transfer body 4 movably mounted on the rail 3, and the transfer body 4 The driving unit 5 is configured to move on the rail 3.

[rail]
The rail 3 is provided at one end of the staircase 2 on the wall 200 side, and is fixed to an appropriate step of the staircase 2 via an appropriate mounting bracket (not shown).

[Transport body]
The transfer body 4 includes a base portion 7 that is movably mounted on the rail 3 via a rotating wheel 6, a seat portion 8 provided on the upper portion of the base portion 7, and the progress of the base portion 7. A footrest base portion 9 attached to a surface that is orthogonal to the direction and faces the inner side of the staircase 2 (hereinafter, this surface is referred to as “front surface”), and the footrest base portion 9 is rotated. An electric rotating device 10 to be displaced and a human sensor 11 for detecting that a person is present in front of the seat portion 8 are provided.

[Transfer body-base part]
The base portion 7 has a box structure whose bottom surface opens toward the rail 3, and a transfer motor (not shown) constituting a part of the driving means 5 is installed therein.

[Transfer-Seat]
The seat portion 8 is attached to the upper portion of the base portion 7, a backrest 12 is integrally attached to the rear edge, and an armrest portion 13 is provided on the side toward the lower part of the stairs 2. An operation switch 14 for controlling the driving means 5 is provided on the front upper portion of the armrest 13 and a seat belt 15 for fixing the user to the seat 8 is attached.

[Transfer body-footrest section]
The footrest base 9 has a plate shape large enough to place both feet side by side, and is pivotally attached to a bearing portion 16 protruding from the front surface of the base portion 7 with a pin 17 so as to be substantially horizontal. It can be rotated between a footrest position (see FIG. 3) and a substantially vertical storage position (see FIG. 4).

[Transfer body-Electric rotating device]
The electric rotating device 10 for rotating and displacing the footrest base portion 9 includes an inner portion of a device box 18 which is arranged below the armrest portion 13 so as to protrude forward from the front surface of the base portion 7. And an electric motor 19 that can be rotated forward and reverse, a driving link 20 directly connected to an output shaft 19a of the electric motor 19, and one end of which is pivotally attached to the driving link 20 by a pin 21. The other end is formed by a follower link 23 pivotally attached to the side surface of the footrest base 9 by a pin 22.

  By this driving link 20, driven link 23, footrest base 9, and base 7 and device box 18, as shown in FIG. 6, a four-bar rotation link mechanism in which the base 7 and device box 18 are fixed links. When the output shaft 19a of the electric motor 19 fixed in the device box 18 is rotated clockwise as indicated by an arrow in FIG. 6A, it is linked to the driven link 23 pulled by the driving link 20. Then, the footrest base portion 9 in the horizontal footrest position is pivotally displaced to the storage position as shown in FIG. 6B, and if the electric motor 19 is reversely rotated from the state of FIG. The cradle part 9 returns to the footrest position of FIG.

By the way, the electric motor 19 is controlled to be stopped by micro switches 24H and 24L provided at a high place and a low place in the apparatus box 18 as shown in FIGS.
That is, as shown in FIG. 5, a pressing operation piece 25 protrudes from the driving link 20 of the link mechanism in a direction orthogonal to the rotation direction, and the pressing operation piece 25 causes the micro switches 24 </ b> H and 24 </ b> L to move. A contact (not shown) is pressed.
On the other hand, the micro switch 24H on the high side is configured such that the contact is pressed by the driving link 20 (specifically, the pressing operation piece 25) when the footrest base 9 is in the storage position. The low-side micro switch 24L is configured such that the contact is pressed by the driving link 20 (specifically, the pressing operation piece 25) when the footrest base 9 is in the footrest position.
Therefore, the footrest base 9 can be stopped at the storage position by controlling the electric motor 19 to stop by the change of the signal of the micro switch 24H on the high place side (for example, ON → OFF or OFF → ON), Further, the footrest base 9 can be stopped at the footrest position by controlling the electric motor 19 to stop by the change in the signal of the low-side micro switch 24L.

  In the electric rotating device 10 according to the embodiment, proximity switches are provided at substantially the same positions as the micro switches 24H and 24L, and the pressing operation piece 25 of the driving link 20 as shown in FIG. A wing piece 26 is provided on both sides of the base end portion so as to project toward the rotational direction of the driving link 20. When this blade piece 26 approaches the proximity switch and is detected prior to the pressing operation piece 25, the electric motor 19 stops once and resumes rotation in the same direction after about 1 second, and finally. It is actually stopped after being detected by the microswitches 24H and 24L. Thus, by stopping the footrest base 9 once before reaching the final setting position, the safety of the rotation of the footrest base 9 can be enhanced.

[Transporter-Human sensor]
The human sensor 11 is provided in front of the lower part of the backrest 12 and can detect a person in front of the seat 8 by irradiating infrared rays or ultrasonic waves. Since the human sensor 11 is publicly known, detailed description thereof is omitted.
The human sensor 11 is connected to the electric driving means 5, and when a person is detected in a state where the footrest base portion 9 is in the storage position, the electric rotating device 10 is activated and the footrest base portion 9. Is automatically rotated to the footrest position, and when the person is no longer detected in that state, the electric rotating device 10 is activated to automatically rotate the footrest base portion 9 to the storage position.
In addition, for the establishment of human detection by the human sensor 11, for example, continuous detection for 1 second is set as a condition, so that a person who crosses the stairs 2 to normally go up and down is not erroneously detected.

[Transporter-Others]
A manual switch 27 for manually actuating the electric rotating device 10 is provided below the operation switch 14 of the armrest portion 13, and the footrest base portion 9 can also be moved by turning on the manual switch 27. It can be rotated and displaced from the storage position to the footrest position and from the footrest position to the storage position.
Moreover, although not shown in figure, the switch 200 for attracting the transfer body 4 to the user side is provided in the wall 200 of the building corresponding to the both ends of the rail 3. FIG.

[Driving means]
The driving means 5 moves the transfer body 4 on the rail 3, and in the embodiment, a chain 5a stretched in the rail 3 and a transfer motor (not shown) installed in the base portion 7 are used. And a driving sprocket (not shown) that rotates using the transfer motor as a power source and has the chain 5a wound around the periphery thereof in an Ω shape.

  Since the stair lift device 1 of the present invention is configured as described above, it is stopped at one end corresponding to the upper or lower level of the rail 3 in the standby state when not in use. At that time, the footrest 9 is As shown in FIG. 4, it is in the storage position. Therefore, there is almost no trouble when walking through the stairs 2.

  In this state, when the user stands in front of the seat portion 8, the human sensor 11 detects this and the electric rotating device 10 is activated, or when the manual switch 27 of the armrest portion 13 is turned ON, The moving device 10 is activated, and the footrest base 9 is automatically rotated to the footrest position as shown in FIGS. 2, 3, 6B to 6A in the above-described manner.

In this state, the user sits down on the seat portion 8, puts both feet on the footrest base portion 9, fastens the seat belt 15, and then operates the operation switch 14 of the armrest portion 13.
Then, the driving means 5 is activated and the transfer body 4 moves from one end of the rail 3 to the other end (from the downstairs to the upstairs or from the upstairs to the downstairs). During this movement, the footrest 9 of the transfer body 4 is set so as not to move even if the manual switch 27 is turned ON, for example, for safety.

  Then, when the transfer body 4 arrives at the end of the rail 3 and stops and the user gets off the seat 8 and leaves the place, this is detected by the human sensor 11. Upon receipt of the detection, the electric rotating device 10 is operated, and the footrest base 9 is rotated from the footrest position to the storage position as shown in FIGS. 4 and 6A to 6B and described above. Return to standby.

As mentioned above, although this invention was demonstrated about embodiment, of course this invention is not limited to the said embodiment. For example, in the embodiment, the human sensor 11 is provided on the lower front surface of the backrest 12, but the human sensor 11 may be provided on the base portion 7.
Moreover, although not shown in figure, LED etc. which illuminate the footrest base part 9 in a footrest position on the lower surface of the seat part 8 of the transfer body 4, the front surface of the base part 7 or the side surface of the footrest base part 9 side of the device box An illuminator may be installed so that at least the footrest base 9 is turned to the footrest position to illuminate the user's feet for a predetermined time.

DESCRIPTION OF SYMBOLS 1 ... Stair elevating device 2 ... Stair 3 ... Rail 4 ... Transfer body 5 ... Drive means 7 ... Base part 8 ... Seat part 9 ... Footrest base part 10 ... Electric rotating device 11 ... Human sensor 12 ... Backrest 13 ... armrest 18 ... equipment box

Claims (3)

Rails along the stairs,
A transfer body movably mounted on the rail;
Driving means for moving the transfer body on the rail, and
The transfer body is
A base portion movably mounted on the rail;
A seat provided on the base,
A stair lift device comprising a footrest base portion attached to the base portion so as to be pivotable to a substantially horizontal footrest position and a substantially vertical storage position,
The transfer body is
An electric rotating device capable of rotating and moving the footrest base portion between the footrest position and the storage position;
A human sensor that detects that there is a person in front of the front of the seat,
When the human sensor detects a person in a state where the footrest base is in the storage position, the electric rotating device is activated to automatically rotate the footrest base to the footrest position, and In this state, when the human sensor no longer detects a person, the electric rotating device is activated to automatically rotate the footrest base portion to the storage position. The transfer body is
An armrest is provided on at least the side of the seat that faces the lower part of the staircase, and a device box is provided on the lower side of the armrest so as to protrude forward from the front of the base,
2. The stair lift device according to claim 1, wherein the electric rotating device for rotating the footrest base portion is incorporated in the device box.   The stair lift according to claim 1 or 2, wherein the transfer body has a backrest at a rear edge of the seat portion, and the human sensor is provided on a lower front surface of the backrest. apparatus.

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