JPH01133886A - Staircase elevator having recall means - Google Patents

Abstract

PURPOSE: To clime up or down stairs with sitting on a wheelchair even when no power supply or service interruption by providing a guide part, a lifting-up means, a hand-rowing oar, a manual clutch, first and second running gears, and a recalling means. CONSTITUTION: In climbing up stairs, an ascent/descent changeover switch 5 closes a clutch to reciprocate an oar 4 by hand rowing. Thus, a first running gear rotates in the climbing-up direction through a ratchet, and therefore, an elevator body 1 is guided to a guide part 2 and climbs up stairs only by muscular energy. In climbing down stairs, the changeover switch 5 releases the clutch to make condition of the first running gear free, and the elevator body 1 climbs down by its own weight at a constant speed with being decelerated due the transmission of the rotation of the second running gear to a centrifugal brake. When a user recalls the elevator body 1 from an upper floor or a lower floor, pulls a calling-down lever 8 or a calling-up lever 9 to drive a remote operation lever, releases the clutch, and makes it climb down by its own weight or pulls it up manually with a lifting-up means.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a stair lifting device installed in a staircase, and in particular, when the elevator main body is in a position opposite to the user, the elevator main body is called back to the user. This invention relates to a stair lift device that can be used for climbing stairs.

[Conventional technology]

Conventionally, since wheelchair users cannot go up and down stairs by themselves, motor-driven rail-type stair climbing devices have been used that allow wheelchair users to get off the wheelchair and sit on another chair to go up and down.

There are also stair lift devices that allow people to go up and down while sitting in a wheelchair.

FIG. 8 shows such a stair lifting device, and in the figure,
81 is the elevator main body, 82 is a guide roller, 83 is a wire, 84 is a guide rail, 85 is a pulley, 86 is a hoist,
87 is a motor, and 88 is a control panel.

This stair lifting device drives a motor 87 and a hoisting machine 86
The main body 81 of the elevator is moved upward or downward by the wire 83, allowing the disabled person to ascend and descend the stairs while remaining in the wheelchair. If the elevator itself is not available on the desired floor, such as when a person with a disability uses the elevator from the same direction, turn on the power from the upper or lower floor using a push button switch, etc., and use the motor drive power. I'm trying to call it back.

[Problems to be solved by the invention]

However, the motor-driven stair climbing device that installs rails on stairs as described above requires a power source, so depending on the installation location, the power source may have to be brought from a distance, and in order to recall Since the power source must be controlled remotely, there is a drawback that the control becomes complicated.

The present invention provides a wheelchair that allows the user to go up and down stairs while sitting in a wheelchair even in places where there is no power supply or during a power outage, and also allows the elevator to return to the user's location when the elevator is located in the opposite position from the user. The purpose of this invention is to provide a stair climbing device for

[Means for solving problems]

For this purpose, the stair lifting device equipped with a recall means of the present invention is a stair lifting device that moves the elevator main body up and down along a guide rail installed on the stairs, and includes a guide portion having guide rails on the upper and lower sides, and A pulling means for pulling up along a guide rail, a rowing oar, a manual clutch to which power is transmitted via a ratchet and a first one-way clutch driven by the reciprocating motion of the oars, and an output side of the manual clutch. A first traveling gear that is connected and engages with one of the guide rails, and a second traveling gear that engages with the other guide rail and whose rotation is transmitted to the centrifugal brake only during descent via a second one-way clutch. Equipped with a gear and a recall means having a call-up and call-down lever, the manual clutch can be released by operating the call-up or call-down lever, and the elevator body can be called back by its own weight or by the lifting means. It is characterized by

[Action and effect of the invention]

In the stair climbing device of the present invention, when climbing stairs, the clutch is closed by a changeover switch, and the oars are reciprocated by rowing. By rowing the oars, the first running gear rotates only in the ascending direction via the ratchet, and the elevator main body is guided by the guide section and ascends the stairs using only human power. When descending, the clutch is released by a changeover switch, the first running gear is freed, and the rotation of the second running gear is transmitted to the centrifugal brake due to its own weight, and the vehicle descends at a constant speed while decelerating. Subsequently, when ascending or descending from the same direction, for example, when calling back the elevator body that is above from the bottom, pull the call-down lever to drive the remote control lever, release the clutch, and lower the elevator by its own weight. When you want to recall the elevator main body that is located above and below, you pull the recall lever to drive the remote control lever, release the clutch, and manually pull up the elevator main body using the lifting means of the elevator main body.

According to the present invention, power is generated by rowing the oars to move the elevator body to ascend the stairs, and its own weight is used when descending, so even in places without power or during a power outage, the wheelchair can be used. You can go up and down the stairs while sitting, and even if the elevator is in the opposite position from the user, you can manually call the elevator back to the user.
Since there is no need to remotely control the power source as in the past, the configuration is not complicated and can be provided at low cost. Also, when you get on the elevator, you can hold the oars in your hands, giving you a sense of security.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a perspective view of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof. In the figure, 1 is the elevator main body, 2 is the guide part, 3 is the support member, 4 is the oar, 5 is the elevation changeover switch, 6 is the wheelchair wheel stopper, 7 is the opening/closing switch for the wheelchair wheel stopper, 8 is the lift lever, 9 is the lift lever,
10 is a winding wheel.

The stair lift device of the present invention can be roughly divided into an elevator main body 1 on which a wheelchair is placed, and a plurality of supporting members 3 installed on the stairs to guide the elevator main body 1, and a means for calling the elevator main body 1 to a user's location. It consists of a guide part 2 provided.

On the side of the elevator main body 1, an oar 4, a lift changeover switch 5, and a wheelchair wheel lock opening/closing switch 7, which are operated by the wheelchair user, are provided at hand height, and inside the elevator main body 1, the wheelchair is connected to the elevator main body 1. Wheelchair wheel stops 6 are provided to prevent the wheelchair from falling. A lift lever 8 and a lift lever 9 are provided at both the upper and lower ends of the guide section 2 to release a clutch, which will be described later, to lower or raise the elevator main body, and a hoist wheel 10 is provided at the upper end to pull up the elevator. It is being

Next, a more detailed explanation will be given with reference to FIGS. 4 and 5.

4 and 5 are views for explaining the main parts of the elevator main body 1 and the guide section 2, with FIG. 4 being a perspective view and FIG. 5 being a sectional view. In the figure, 11 is a frame, 12 is an arm, 13 is a ratchet, 14, 15 degrees, 16 is a gear, 17 is a first one-way clutch, 18 is a manual clutch, 19 is an elevation switching cable, 20 is a rotation axis, and 21 is first running gear, 2
2 is a second running gear, 23 is a second one-way clutch, 24 is a centrifugal brake, 31 is a lower guide rail, 32
is an upper guide rail, 41 is a first cable, 42 is a second cable, 44 is a lifting hook mechanism, 45 is a lifting hook, 47 is a remote control lever, 54 is a lifting hook mechanism, 55 is a lifting hook It is.

As shown in FIG. 4, frames 11 are provided on both sides of the elevator main body 1 to attach means for engaging with the guide portion 2 to raise and lower the elevator main body 1. At the bottom of the frame 11, a frame 11 is provided for attaching means for raising and lowering the elevator main body 1. Means for lowering is provided at the upper part, and means for lowering is provided at the upper part. As a means for raising the elevator main body 1, an arm 12 for transmitting the reciprocating motion of the oars 4 is connected between the oars 4 and a rotating shaft 20 that is a fulcrum thereof, and a ratchet is attached to the other end of the arm 12. 13 are provided. The ratchet 13 rotates only in the upward direction of the arrow in FIG.
, 15, 16 to the first one-way clutch 17 and manual clutch 18. The first one-way clutch 17 is engaged and locked only when ascending, so that the main body does not descend even when the ratchet feed pawl is separated from the ratchet wheel, and is released and becomes free when descending. In this case, if the ratchet is provided with a stopper outside the feed pawl plate, the ratchet can be more completely prevented from falling. The manual clutch 18 is engaged or released by the elevation changeover switch 5 via the elevation changeover cable 19, and when ascending, the elevation changeover switch 5 is closed and the manual clutch 18 is engaged.
The manual clutch 18 is engaged and opened when descending to release the manual clutch 18.

Then, the first running gear 21 is connected via the manual clutch 18.
is provided, and the first running gear 21 meshes with a lower guide rail 31 provided below the guide portion 2.

As a means for lowering the elevator main body 1, a second running gear 22 is provided on the upper part of the frame 11 via a centrifugal brake 24, and the second running gear 22 has a second one-way clutch 23. It meshes with an upper guide rail 32 provided above the guide part 2.

Both ends of the first cable 41 are connected to a pick-up lever 8 and a pick-up lever 9, and a pick-up hook mechanism 44 is provided below the first cable 41, and a call-down hook mechanism 54 is provided above the first cable 41. ing. The remote control lever 47 is provided on the frame 11 of the elevator main body 1, and is actuated by the elevation changeover switch 5 to switch the manual clutch 18 via the elevation changeover cable 19, and also activates the lifting hook mechanism 44 when the elevator main body 1 is at the bottom. Furthermore, when the elevator main body 1 is in the upper position, it faces the call-down hook mechanism 54 and is activated by the movement of the lift-up hook mechanism 44 or the call-down hook mechanism 54, and similarly prevents the elevator main body 1 from descending. Manual clutch 18 can be released. Both ends of the second cable 42 are connected to the hoisting wheel 10 and the elevator body 1, so that when the hoisting wheel 10 is rotated, the elevator body 1 is pulled up.

Next, to explain how to go up and down the stairs, when going up the stairs, stand on the elevator main body 1 with your back to the stairs, turn on the wheelchair wheel stopper switch 7, stop the wheelchair with the wheelchair wheel stopper 6, and then turn the up/down changeover switch 5. Close it, hold oar 4 in your hand, and move it as if you were rowing a boat. When the oar 4 moves backward, the pawl of the ratchet 13 moves in the direction of the arrow in Figure 4, and several teeth of the ratchet 13 park. Its rotation is gear 14,1
5° 16 to the first one-way clutch 17 and manual clutch 18, the first traveling gear 21 rotates and is guided by the lower guide rail 31, and the elevator main body 1 rises. When moving the oar 4 forward, the force is not transmitted by the ratchet wheel 13, and even if the feed pawl comes off the ratchet wheel, the first one-way clutch 17
Since the elevator body 1 is prevented from descending, the elevator main body 1 is stopped during that time. When the oar 4 is moved backward again, power is transmitted through the ratchet wheel, and by repeating this action, it is possible to ascend the stairs.

At this time, the rotation of the second traveling gear 22 is not transmitted to the centrifugal brake 24 because of the second one-way clutch 23, and can engage with the upper guide rail 32 and rotate freely.

When going down the stairs, the user gets on the elevator main body 1 and stops the wheelchair with the wheelchair wheel stops 6, opens the up/down changeover switch 5, and releases the manual clutch 18 in the same way as when going up. Then, the first running gear 21 becomes free, and the elevator main body 1
The weight of the wheelchair causes the first running gear 21 and the second running gear 22 to rotate along the upper guide rail 32 and the lower guide rail 31, and the elevator main body 1 begins to descend.

The rotation of the second running gear 22 is transmitted to the centrifugal brake 24 via the second one-way clutch 23, so when the descending speed increases, the centrifugal brake 24 is applied to reduce the speed, allowing the vehicle to descend at a constant speed.

In addition, when it is desired to stop during the descent, the manual clutch 18 is engaged by closing the elevator changeover switch 5, and the elevator main body 1 can be stopped.

Figures 6 (a) and (b) are enlarged views of the lower end of the guide when the elevator body is below the stairs, and Figure 7 is an enlarged view of the upper end of the guide when the elevator body is above the stairs. It is a diagram.

In the figure, 46.56 is a spring, 48 is an operating rod, and 49 is a rotating body.

The hoisting hook mechanism 44 is for a user at the top to call the elevator body 1 located at the bottom of the stairs, and is normally attached to a spring 4.
6, the remote control lever 47 is not engaged as shown in FIG. 6(a). When calling up, when the first cable 41 is pulled in the direction of the arrow by the lifting lever 9 at the upper end of the guide part 2, the lifting hook 45 rotates as shown in FIG. The operating lever 47 also rotates to move the operating rod 48 upward, rotates the rotating body 49 provided at the lower end of the elevation changeover switch 5, and pulls the elevation changeover cable 19 to release the manual clutch 18. In this way, the manual clutch 18 is released, the first running gear is released, and the hoisting wheel 10 is then rotated to manually connect the elevator body 1 to the second cable 42.
pull up.

Note that at this time, the second running gear 22 is also in a free state due to the second one-way clutch 23.

The call/unload hook mechanism 54 is for a user below to call the elevator main body 1 located above the stairs, and is normally connected to a remote control lever 47 by a spring 56 as shown in FIG. 7(A). Not engaged.

When calling down, pull the first cable 41 in the direction of the arrow using the call-down lever 8 at the lower end of the guide section 2, and the call-down hook 45 will be lowered, as shown in FIG.
Next, the remote control lever 47 rotates to move the operating rod 48, and the rotating body 4 provided at the lower end of the elevation changeover switch 5
9 and pull the elevation switching cable 19 to release the manual clutch 18. In this way, when the manual clutch 18 is released and the first running gear is set in a free state, the elevator main body 1 is lowered by its own weight. At this time, the centrifugal brake 24 allows the user to descend at a constant speed, similar to when descending in a wheelchair.

In the above embodiment, only one side of the guide section was described, but it goes without saying that the rail and running gear are provided on both sides, and the winding mechanism, ratchet mechanism, one-way clutch mechanism, manual clutch, recall mechanism, etc. are provided on one side. It may be provided alone or on both sides as necessary.

Further, as the clutch that can be used in the above embodiment, a ratchet type one-way clutch, a roller type one-way clutch, a sprag type one-way clutch, or the like can be used.

Furthermore, when the centrifugal brake rotates, a built-in leaf spring is bent by the centrifugal force to apply the brake in close contact with the drum, and any known brake may be used as appropriate.

As described above, according to the present invention, power is generated by rowing oars by hand to move the elevator body to ascend the stairs, and its own weight is used when descending, so it can be used in places without power or during power outages. Even when you are in a wheelchair, you can go up and down the stairs while sitting in a wheelchair, and even if the lift board is in the opposite position from the user, you can manually call the lift to the user without requiring a power source. Since there is no need to remotely control the power source as in the past, the configuration is not complicated and can be provided at low cost. Also, when you get on the elevator, you can hold the oars in your hands, giving you a sense of security.

[Brief explanation of the drawing]

Figures 1 to 7 show embodiments of the present invention; Figure 1 is a perspective view, Figure 2 is a plan view, Figure 3 is a side view, Figure 4 is a perspective view of main parts, and Figure 5 is a perspective view. Cross-sectional views of the main parts, Figures 6 (a) and (b) are enlarged views of the lower end of the guide part when the elevator body is below the stairs, and Figure 7 is an enlarged view of the guide part when the elevator body is above the stairs. FIG. 8, an enlarged view of the upper end, shows a conventional motor-driven stair lift device. DESCRIPTION OF SYMBOLS 1...Elevator body, 2...Guide part, 4...Oar, 5...Elevation changeover switch, 6...Wheelchair wheel stopper, 7...Wheelchair wheel stopper open/close switch, 8... Lowering lever, 9... Raising lever, 10... Winding wheel, 11... Frame, 13... Ratchet, 18... Manual clutch, 19... Lifting switching cable, 21...・First running gear, 22...second
running gear, 23...second one-way clutch, 2
4...Centrifugal brake, 31...Lower guide rail,
32... Upper guide rail.

Claims (7)

[Claims] (1) A stair lifting device that raises and lowers the elevator main body along guide rails installed on the stairs, which includes a guide section having guide rails on the top and bottom, a pulling means for pulling up the elevator main body along the guide rails, and a hand. Rowing oars, a manual clutch to which power is transmitted via a ratchet and a first one-way clutch driven by the reciprocating motion of the oars, and a first one-way clutch connected to the output side of the manual clutch and engaged with one of the guide rails. a second running gear that is engaged with the other guide rail and whose rotation is transmitted to the centrifugal brake only during descent via a second one-way clutch;
It is characterized by being equipped with a recall means having a call-up and call-down lever, and by operating the call-up or call-down lever, it is possible to release the manual clutch and recall the elevator body by its own weight or by the lifting means. A stair lift device equipped with a recall means. (2) The stair lifting device according to claim 1, wherein the manual clutch is released when the lifting switching cable is pulled by rotation of a rotating body to which one end of the lifting switching cable is connected. (3) The stair lift device according to claim 2, wherein the rotary body is rotationally driven by a lift changeover switch. (4) The rotating body is rotationally driven by a clutch remote control lever that engages with a hook for picking up and calling down provided on a cable pulled by the picking up and calling down lever. The stair lift device described. (5) The stair lifting device according to claim 4, wherein the hook is always oriented in the direction along the cable due to spring bias. (6) The stair lifting device according to claim 1, wherein the pulling means comprises a cable whose one end is connected to the elevator main body, and a winding wheel that winds up the cable. (7) The stair lifting device according to claim 1, wherein the elevator main body is provided with a wheelchair wheel stopper.